Anatomy Exam 3 - Brain, Respiratory

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Anatomy Exam 3 - Brain, Respiratory - Quiz


Another practice test for anatomy. Hopefully this one is a bit better.


Questions and Answers
  • 1. 

    The brain is not as complex as the spinal cord.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    The statement is false because the brain is actually more complex than the spinal cord. The brain is responsible for controlling various bodily functions, processing sensory information, and coordinating movement, while the spinal cord primarily serves as a pathway for transmitting signals between the brain and the rest of the body. The brain consists of billions of neurons and is involved in higher cognitive functions, emotions, and memory, making it a highly complex organ.

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  • 2. 

    The brain can vary responses to meet changing circumstances using __________ and inhibitatory signals.

    • A.

      Afferent

    • B.

      Excitatory

    • C.

      Resuscitory

    • D.

      Efferent

    Correct Answer
    B. Excitatory
    Explanation
    Excitatory signals are responsible for increasing the activity of neurons, leading to the transmission of nerve impulses. These signals can enhance the brain's responses to meet changing circumstances by promoting the firing of neurons and facilitating communication between different parts of the brain. Inhibitory signals, on the other hand, have the opposite effect, dampening neuronal activity. Therefore, the brain can vary responses to changing circumstances by utilizing excitatory signals to increase activity in certain areas and inhibitatory signals to decrease activity in others.

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  • 3. 

    Which of the following are considered part of the forebrain?1. Medulla Oblongata2. Cerebellum3. Diencephalon4. Cerebrum

    • A.

      1 and 2

    • B.

      2 and 3

    • C.

      1 and 3

    • D.

      3 and 4

    Correct Answer
    D. 3 and 4
    Explanation
    The forebrain is responsible for many important functions such as perception, cognition, and voluntary movement. The medulla oblongata and cerebellum are actually part of the hindbrain, not the forebrain. The diencephalon, which includes the thalamus and hypothalamus, is considered part of the forebrain. The cerebrum, which is the largest part of the brain and is responsible for higher cognitive functions, is also part of the forebrain. Therefore, options 3 and 4 are the correct choices as they include the diencephalon and cerebrum, which are both part of the forebrain.

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  • 4. 

    Which of the following is not considered part of the Brain Stem?

    • A.

      Mesencephalon (Mid Brain)

    • B.

      Cerebral Aqueduct

    • C.

      Pons

    • D.

      Medulla Oblongata

    Correct Answer
    B. Cerebral Aqueduct
    Explanation
    The brain stem is composed of three main parts: the midbrain (mesencephalon), the pons, and the medulla oblongata. The cerebral aqueduct, on the other hand, is a narrow canal that connects the third and fourth ventricles of the brain, allowing cerebrospinal fluid to flow between them. While it is an important structure in the brain, it is not considered part of the brain stem.

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  • 5. 

    Which two regions make up the Hind Brain?1. Pons2. Cerebellum3. Cerebrum4, Mesencephalon

    • A.

      1 and 2

    • B.

      1 and 4

    • C.

      2 and 4

    • D.

      3 and 4

    Correct Answer
    A. 1 and 2
    Explanation
    The hindbrain is composed of two regions: the pons and the cerebellum. The pons is involved in relaying signals between different parts of the brain and the spinal cord, while the cerebellum plays a crucial role in motor coordination, balance, and posture. Therefore, the correct answer is 1 and 2.

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  • 6. 

    The Cerebrum is the most primitive portion of our brain.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    The given statement is false. The cerebrum is not the most primitive portion of our brain. In fact, it is the largest and most highly developed part of the brain. It is responsible for higher cognitive functions such as perception, thinking, memory, and voluntary movement. The cerebrum is divided into two hemispheres and is involved in complex processes that distinguish humans from other animals. The primitive portions of the brain, such as the brainstem and the cerebellum, are responsible for basic functions like breathing, heart rate, and balance.

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  • 7. 

    Which of these brain regions is not a part of the Diencephalon?

    • A.

      Hypothalmus

    • B.

      Fornix

    • C.

      Epithalmus

    • D.

      Thalmus

    Correct Answer
    B. Fornix
    Explanation
    The fornix is not a part of the Diencephalon. The Diencephalon is a region of the brain that includes the hypothalamus, thalamus, and epithalamus. The hypothalamus is responsible for regulating various bodily functions, such as temperature, hunger, and thirst. The thalamus acts as a relay station for sensory information, while the epithalamus is involved in the regulation of sleep and wakefulness. The fornix, on the other hand, is a bundle of nerve fibers that connects the hippocampus to other regions of the brain, but it is not a part of the Diencephalon.

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  • 8. 

    The Mesencephalon is also known as the midbrain.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    The statement is true because the Mesencephalon is indeed another term for the midbrain. The midbrain is a small part of the brainstem that connects the forebrain and the hindbrain. It plays a crucial role in relaying sensory and motor information between different parts of the brain. Therefore, it is correct to say that the Mesencephalon is also known as the midbrain.

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  • 9. 

    Which of these parts are not included in the midbrain?

    • A.

      Pons

    • B.

      Cerebral Peduncles

    • C.

      Infundibulum

    • D.

      Corpora Quadrigemina

    Correct Answer
    C. Infundibulum
    Explanation
    The infundibulum is not included in the midbrain. The midbrain is a small region of the brainstem that connects the forebrain and hindbrain. It consists of several structures, including the pons, cerebral peduncles, and corpora quadrigemina. However, the infundibulum is not part of the midbrain. The infundibulum is a structure located in the hypothalamus, which is a region of the forebrain. It plays a role in regulating hormone secretion from the pituitary gland.

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  • 10. 

    How many ventricles are located in the human brain?

    • A.

      2

    • B.

      3

    • C.

      4

    • D.

      5

    Correct Answer
    C. 4
    Explanation
    The human brain contains four ventricles. Ventricles are fluid-filled cavities within the brain that produce and circulate cerebrospinal fluid. They play a crucial role in protecting and nourishing the brain, as well as maintaining its overall function. The four ventricles in the human brain are the left and right lateral ventricles, the third ventricle, and the fourth ventricle. Each ventricle has its own specific location and function within the brain.

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  • 11. 

    Where are the brain's Lateral Ventricles located?

    • A.

      Far back, to the dorsal portion of the brain

    • B.

      Parallel to one another, one in each hemisphere.

    • C.

      One in each hemisphere, with the right side slightly higher than the left.

    • D.

      Towards the ventral portion of the brain.

    Correct Answer
    B. Parallel to one another, one in each hemisphere.
    Explanation
    The brain's lateral ventricles are located parallel to one another, with one in each hemisphere. This means that there is a lateral ventricle on the right side of the brain and another on the left side. They are positioned side by side, running horizontally, and are responsible for producing and circulating cerebrospinal fluid throughout the brain.

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  • 12. 

    The third ventricle is located within the ________.

    • A.

      Hindbrain

    • B.

      Metecephalon

    • C.

      Diencephalon

    • D.

      Forebrain

    Correct Answer
    C. Diencephalon
    Explanation
    The correct answer is Diencephalon. The third ventricle is a fluid-filled cavity located within the diencephalon, which is a part of the forebrain. The diencephalon is responsible for relaying sensory information, regulating sleep and wake cycles, and controlling hormone secretion. It consists of several structures, including the thalamus, hypothalamus, and pineal gland. The third ventricle is crucial for the circulation of cerebrospinal fluid and plays a role in maintaining brain homeostasis.

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  • 13. 

    The Cerebral Aqueduct connects the third and fourth ventricle.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    The cerebral aqueduct is a narrow canal that connects the third and fourth ventricles in the brain. It allows for the flow of cerebrospinal fluid (CSF) between these two ventricles. CSF is produced in the ventricles and helps to cushion and protect the brain and spinal cord. Therefore, it is correct to say that the cerebral aqueduct connects the third and fourth ventricle.

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  • 14. 

    The Interventricular Foramen allows for communication of CSF between the two lateral ventricles.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    The Interventricular Foramen is a small opening that connects the two lateral ventricles in the brain. This allows for the flow and communication of cerebrospinal fluid (CSF) between the ventricles. CSF is a clear fluid that surrounds and cushions the brain and spinal cord, providing nutrients and removing waste products. Therefore, the statement that the Interventricular Foramen allows for communication of CSF between the two lateral ventricles is true.

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  • 15. 

    Put the following layers that protect the brain in order from most superficial to deepest.

    • A.

      Scalp and Skin, Cranial Meninges, Skull Bone, CSF, Blood Brain Barrier

    • B.

      Scalp and Skin, Blood Brain Barrier, Cranial Meninges, Skull Bone, CSF

    • C.

      Scalp and Skin, Blood Brain Barrier, Skull Bone, Cranial Meninges, CSF

    • D.

      Scalp and Skin, Skull Bone, Cranial Meninges, CSF, Blood Brain Barrier

    Correct Answer
    D. Scalp and Skin, Skull Bone, Cranial Meninges, CSF, Blood Brain Barrier
    Explanation
    The layers that protect the brain in order from most superficial to deepest are the scalp and skin, followed by the skull bone, then the cranial meninges, the cerebrospinal fluid (CSF), and finally the blood-brain barrier.

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  • 16. 

    The falx cerebri between cerebral hemispheres is made up of.....

    • A.

      Dura Mater

    • B.

      Pia Mater

    • C.

      Collagen Fibers

    • D.

      Arachnoid Mater

    Correct Answer
    A. Dura Mater
    Explanation
    The correct answer is Dura Mater. The falx cerebri is a fold of the dura mater, which is the outermost layer of the meninges. The dura mater is a tough and fibrous membrane that surrounds and protects the brain and spinal cord. It consists of dense collagen fibers and provides structural support to the brain. Therefore, the dura mater is responsible for forming the falx cerebri between the cerebral hemispheres.

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  • 17. 

    The Perosteal Layer of the Dura Mater.....

    • A.

      Is the closest layer to the brain.

    • B.

      Wraps around the Spinal Cord.

    • C.

      Is attached to the skull.

    • D.

      Is absent in most areas.

    Correct Answer
    C. Is attached to the skull.
    Explanation
    The perosteal layer of the dura mater refers to the outermost layer of the meninges that covers the brain and spinal cord. It is directly attached to the inner surface of the skull, providing a protective barrier between the brain and the bony skull. This layer helps to stabilize and support the brain within the cranial cavity.

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  • 18. 

    Which neuroglial cell helps maintain the blood-brain barrier?

    • A.

      Astrocytes

    • B.

      Macrophages

    • C.

      Oligodendricytes

    • D.

      Microphages

    Correct Answer
    A. Astrocytes
    Explanation
    Astrocytes are a type of neuroglial cell that play a crucial role in maintaining the blood-brain barrier. They form a protective barrier between the blood vessels and the brain tissue, regulating the movement of substances into and out of the brain. Astrocytes have specialized structures called endfeet that surround blood vessels and release chemicals that help maintain the integrity of the blood-brain barrier. They also provide support and nourishment to neurons, regulate the concentration of ions and neurotransmitters in the brain, and contribute to the repair and regeneration of brain tissue.

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  • 19. 

    Which area of the brain forms CSF?

    • A.

      Corpus Callosum

    • B.

      Choroid Plexus

    • C.

      Fornix

    • D.

      Cerebral Aqueduct

    Correct Answer
    B. Choroid Plexus
    Explanation
    The choroid plexus is responsible for producing cerebrospinal fluid (CSF) in the brain. CSF is a clear fluid that surrounds and protects the brain and spinal cord. It is produced by the choroid plexus, which is located in the ventricles of the brain. The choroid plexus filters blood plasma and secretes CSF into the ventricles. This fluid then circulates around the brain and spinal cord, providing nutrients, removing waste products, and cushioning the central nervous system. Therefore, the choroid plexus is the area of the brain that forms CSF.

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  • 20. 

    CSF is unlike blood plasma, because it is much thicker, to add extra cushioning for the brain and spinal cord.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    The statement is false because CSF (cerebrospinal fluid) is actually much thinner than blood plasma. CSF serves as a protective fluid that surrounds the brain and spinal cord, providing cushioning and support. It also helps to remove waste products and deliver nutrients to the central nervous system. Unlike blood plasma, which is thicker due to its composition of cells and proteins, CSF is a clear and watery fluid that is specifically designed to protect the delicate structures of the brain and spinal cord.

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  • 21. 

    CSF drains from the sub-arachnoid space through....

    • A.

      The Falx Cerebri

    • B.

      The Superior Sagittal Sinus

    • C.

      The Sub-dural Space

    • D.

      Arachnoid Granulations

    Correct Answer
    D. Arachnoid Granulations
    Explanation
    Arachnoid granulations are small projections of the arachnoid membrane that protrude into the superior sagittal sinus, a large venous channel in the brain. They act as one-way valves, allowing cerebrospinal fluid (CSF) to flow from the sub-arachnoid space into the venous system. This is the only option that correctly describes the pathway through which CSF drains from the sub-arachnoid space. The falx cerebri is a fold of dura mater that helps to separate the cerebral hemispheres and does not play a role in CSF drainage. The sub-dural space is a potential space between the dura mater and the arachnoid mater, but CSF does not drain through it.

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  • 22. 

    Half of the brain's mass is located in the....

    • A.

      Cerebellum

    • B.

      Cerebrum

    • C.

      Metencephalon

    • D.

      Midbrain

    Correct Answer
    B. Cerebrum
    Explanation
    The cerebrum is the largest part of the brain and is responsible for higher cognitive functions such as thinking, memory, and voluntary movements. It is divided into two hemispheres and makes up about half of the brain's mass. The cerebellum, on the other hand, is responsible for coordinating movement and balance. The metencephalon and midbrain are smaller regions of the brain that have specific functions but do not make up half of the brain's mass. Therefore, the correct answer is the cerebrum.

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  • 23. 

    _______ divide the brain's cerebrum into lobes and hemispheres.

    • A.

      Sulci

    • B.

      Gyri

    • C.

      Fissures

    • D.

      Granulosums

    Correct Answer
    C. Fissures
    Explanation
    Fissures divide the brain's cerebrum into lobes and hemispheres. Fissures are deep grooves in the brain that separate different regions and allow for specialization of function. They are responsible for dividing the cerebrum into lobes, such as the frontal, parietal, temporal, and occipital lobes, as well as dividing the brain into hemispheres, namely the left and right hemispheres. Fissures play a crucial role in organizing and structuring the brain, allowing for efficient communication and coordination between different areas.

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  • 24. 

    All but one of the brain's lobes can be seen superficially. The one that can not is more deep and called the _______.

    • A.

      Temporal

    • B.

      Insula

    • C.

      Frontal

    • D.

      Occipital

    Correct Answer
    B. Insula
    Explanation
    The brain is divided into lobes, which are different regions responsible for specific functions. The frontal, temporal, and occipital lobes can be seen superficially, meaning they are visible on the surface of the brain. However, the insula lobe is located deeper within the brain and cannot be seen superficially. Therefore, the correct answer is Insula.

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  • 25. 

    The Central Sulcus separates the ________lobes from the _______lobe.

    • A.

      Parietal, Occipital

    • B.

      Occipital, Temporal

    • C.

      Parietal, Frontal

    • D.

      Frontal, Insula

    Correct Answer
    C. Parietal, Frontal
    Explanation
    The Central Sulcus is a prominent fold in the brain that separates the frontal lobe from the parietal lobe. The frontal lobe is responsible for higher cognitive functions such as decision-making and problem-solving, while the parietal lobe is involved in processing sensory information and spatial awareness. Therefore, the correct answer is "Parietal, Frontal".

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  • 26. 

    The Precentral Gyrus is located in the _______ lobe.

    • A.

      Frontal

    • B.

      Left Parietal

    • C.

      Insula

    • D.

      Occipital

    Correct Answer
    A. Frontal
    Explanation
    The Precentral Gyrus is located in the frontal lobe. The frontal lobe is responsible for various higher cognitive functions such as decision-making, problem-solving, and motor control. The Precentral Gyrus specifically plays a crucial role in motor control, as it is involved in planning and executing voluntary movements. Therefore, it is logical to place the Precentral Gyrus in the frontal lobe, which is responsible for motor function and other executive functions.

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  • 27. 

    The Postcentral Gyrus is located in the parietal lobes and its surface contains the ______.

    • A.

      Primary Motor Cortex.

    • B.

      Primary Sensory Cortex

    • C.

      Somatic Sensory Area

    • D.

      Visual Association Area

    Correct Answer
    B. Primary Sensory Cortex
    Explanation
    The Postcentral Gyrus is a prominent structure located in the parietal lobes of the brain. It is responsible for processing and interpreting sensory information from various parts of the body. The surface of the Postcentral Gyrus contains the Primary Sensory Cortex, which is responsible for processing tactile sensations such as touch, pressure, temperature, and pain. This area plays a crucial role in our ability to perceive and respond to sensory stimuli.

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  • 28. 

    The area of the brain most associated with speech is called the __________ and is found in the left area of the frontal lobe.

    • A.

      Weirnickes Area

    • B.

      Broca's Area

    • C.

      Schwann's Regional Divison

    • D.

      Gustatory Cortex

    Correct Answer
    B. Broca's Area
    Explanation
    Broca's Area is the correct answer because it is a region in the left frontal lobe of the brain that is primarily responsible for speech production and language processing. Damage to this area can result in difficulties in speaking and forming coherent sentences, a condition known as Broca's aphasia. Weirnickes Area is associated with language comprehension, Schwann's Regional Division is not a recognized term, and the Gustatory Cortex is responsible for processing taste sensations, not speech.

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  • 29. 

    Our sense and conscious perception of touch can be found in this area of the brain.

    • A.

      Temporal

    • B.

      Parietal

    • C.

      Frontal

    • D.

      Occipital

    Correct Answer
    B. Parietal
    Explanation
    The correct answer is Parietal. The parietal lobe is responsible for processing sensory information, including touch. It receives and interprets signals from the skin and other sensory organs, allowing us to perceive touch and have a conscious awareness of it. This area of the brain plays a crucial role in our sense of touch and our ability to perceive and interact with the world around us.

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  • 30. 

    Intelligence, Memory, Conscious Thinking and Conscious control of skeletal muscle is found in this area of the brain.

    • A.

      Occipital

    • B.

      Parietal

    • C.

      Insula

    • D.

      Frontal

    Correct Answer
    D. Frontal
    Explanation
    The frontal lobe of the brain is responsible for intelligence, memory, conscious thinking, and conscious control of skeletal muscle. It is involved in higher cognitive functions such as decision-making, problem-solving, and planning. Additionally, the frontal lobe plays a crucial role in personality and social behavior.

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  • 31. 

    The left side of our frontal brain is logical and rational while the right side is more artistic.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    The explanation for the given correct answer is that the left side of the frontal brain is responsible for logical thinking, reasoning, and analytical skills, while the right side is associated with creativity, imagination, and artistic abilities. This division of functions is known as lateralization of the brain. Numerous studies have shown that different areas of the brain are specialized for specific cognitive processes, and this division between logical and artistic abilities is a well-established concept in neuroscience. Therefore, it is true that the left side of the frontal brain is logical and rational, while the right side is more artistic.

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  • 32. 

    This portion of our brain contains the primary visual association centers.

    • A.

      Parietal

    • B.

      Frontal

    • C.

      Occipital

    • D.

      Insula

    Correct Answer
    C. Occipital
    Explanation
    The occipital lobe is responsible for processing visual information and contains the primary visual association centers. It receives input from the eyes and helps to interpret and make sense of visual stimuli. This region of the brain is essential for visual perception, object recognition, and spatial awareness. The parietal lobe is primarily involved in sensory processing and spatial awareness, the frontal lobe is responsible for higher cognitive functions and decision making, and the insula is involved in emotional processing and self-awareness.

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  • 33. 

    Unlike the spinal cord, the Gray matter of the brain is found more superficial to the white matter.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    The gray matter of the brain is indeed found more superficial to the white matter. This is because the gray matter mainly consists of the cell bodies of neurons, while the white matter is composed of the axons that connect different regions of the brain. The gray matter is located on the outer layer of the brain, forming the cerebral cortex, while the white matter is located deeper within the brain, beneath the gray matter. Therefore, it is correct to say that the gray matter is more superficial to the white matter in the brain.

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  • 34. 

    The corpus callosum is formed by gray matter.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    The corpus callosum is not formed by gray matter. It is a thick bundle of nerve fibers that connects the left and right hemispheres of the brain, allowing for communication and coordination between the two sides. Gray matter, on the other hand, refers to the regions of the brain that contain cell bodies and synapses.

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  • 35. 

    The precentral gyrus aids in....

    • A.

      Conscious movement of skeletal muscle.

    • B.

      Conscious perception of senses.

    • C.

      Unconscious control of bodily functions.

    • D.

      Coordination of circadian rhythms.

    Correct Answer
    A. Conscious movement of skeletal muscle.
    Explanation
    The precentral gyrus is a region of the brain that is responsible for initiating voluntary movements of skeletal muscles. It is located in the frontal lobe and is part of the primary motor cortex. When a person decides to move a specific muscle or group of muscles, the precentral gyrus sends signals to the spinal cord and peripheral nerves, which ultimately leads to the contraction of the desired muscles. This conscious control over movement allows us to perform various actions, such as walking, talking, and writing.

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  • 36. 

    Language comprehension is found in the anterior portion of the _______.

    • A.

      Temporal Lobe

    • B.

      Frontal Lobe

    • C.

      Parietal Lobe

    • D.

      Occipital Lobe

    Correct Answer
    B. Frontal Lobe
    Explanation
    Language comprehension is found in the anterior portion of the frontal lobe. The frontal lobe is responsible for various cognitive functions, including language processing and comprehension. The anterior portion of the frontal lobe specifically plays a crucial role in understanding and interpreting language. This area is involved in language production, comprehension, and the integration of language with other cognitive processes. Therefore, the correct answer is the frontal lobe.

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  • 37. 

    The Olfactory Center is found in the ___________.

    • A.

      Parietal Lobe

    • B.

      Frontal Lobe

    • C.

      Insula

    • D.

      Temporal Lobe

    Correct Answer
    D. Temporal Lobe
    Explanation
    The Olfactory Center is found in the Temporal Lobe. This is the part of the brain responsible for processing smell and is located in the lower region of the brain, near the temples. The Temporal Lobe also plays a role in processing auditory information and memory formation.

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  • 38. 

    This region of the diencephalon houses the pineal gland and includes the choroid plexus.

    • A.

      Hypothalmus

    • B.

      Epithalmus

    • C.

      Thalmus

    • D.

      Infundibulum

    Correct Answer
    B. Epithalmus
    Explanation
    The epithalamus is the region of the diencephalon that houses the pineal gland and includes the choroid plexus. The pineal gland is responsible for producing melatonin, a hormone that regulates sleep-wake cycles. The choroid plexus is a network of blood vessels that produces cerebrospinal fluid, which helps cushion and protect the brain. The hypothalamus is a separate region of the diencephalon that is involved in regulating various bodily functions, such as temperature, hunger, and thirst. The thalamus is responsible for relaying sensory information to the cerebral cortex. The infundibulum is a stalk-like structure that connects the hypothalamus to the pituitary gland.

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  • 39. 

    This portion of the diencephalon is the relay area for sensory information.

    • A.

      Hypothalmus

    • B.

      Thalmus

    • C.

      Epithalmus

    • D.

      Pineal Gland

    Correct Answer
    B. Thalmus
    Explanation
    The thalamus is the correct answer because it is known as the relay station for sensory information in the brain. It receives sensory signals from various parts of the body and relays them to the appropriate regions of the cerebral cortex for further processing. The thalamus plays a crucial role in sensory perception, attention, and consciousness.

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  • 40. 

    This portion of the diencephalon controls appetites, including thirst, hunger and sexual desire. It is also an important part of the limbic system and uses the pituitary gland to coordinate endocrine functions.

    • A.

      Hypothalmus

    • B.

      Epithalmus

    • C.

      Thalmus

    • D.

      Pineal Gland

    Correct Answer
    A. Hypothalmus
    Explanation
    The hypothalamus is the correct answer because it is a portion of the diencephalon that controls appetites, including thirst, hunger, and sexual desire. It is also an important part of the limbic system and works with the pituitary gland to coordinate endocrine functions. The other options, epithalamus, thalamus, and pineal gland, do not have the same functions as the hypothalamus in controlling appetites and coordinating endocrine functions.

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  • 41. 

    The Thalmus regulates body temperature.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    The thalamus is not responsible for regulating body temperature. It is a part of the brain that acts as a relay station for sensory information, helping to transmit signals to different areas of the brain for processing. Body temperature regulation is primarily controlled by the hypothalamus, which is located nearby the thalamus. The hypothalamus monitors and adjusts body temperature through various mechanisms such as sweating, shivering, and adjusting blood flow. Therefore, the statement that the thalamus regulates body temperature is false.

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  • 42. 

    The Corpora Quadrigemina coordinates ___________ and __________ relfexes.

    • A.

      Motor and Sensory

    • B.

      Olfactory and Auditory

    • C.

      Auditory and Optical

    • D.

      Motor and Conscious

    Correct Answer
    C. Auditory and Optical
    Explanation
    The Corpora Quadrigemina is a part of the midbrain that coordinates auditory and optical reflexes. Auditory reflexes involve the processing of sound information, such as the startle reflex or the ability to turn the head towards a sound source. Optical reflexes involve the processing of visual information, such as the pupillary reflex or the ability to track moving objects with the eyes. The Corpora Quadrigemina helps integrate and coordinate these reflexes to ensure appropriate responses to auditory and optical stimuli.

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  • 43. 

    The Superior Colliculi are responsible for __________ relfexes while the inferior are responsible for _________ relfexes.

    • A.

      Optical, Motor

    • B.

      Motor, Auditory

    • C.

      Auditory, Motor

    • D.

      Optical, Auditory

    Correct Answer
    D. Optical, Auditory
    Explanation
    The superior colliculi are responsible for optical reflexes, which involve visual processing and guiding eye movements. On the other hand, the inferior colliculi are responsible for auditory reflexes, which involve processing sound and coordinating responses to auditory stimuli.

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  • 44. 

    This area of the midbrain conducts sensory and motor information.

    • A.

      Pons

    • B.

      Cerebral Peduncles

    • C.

      Medulla Oblongata

    • D.

      Corpora Quadrigemina

    Correct Answer
    B. Cerebral Peduncles
    Explanation
    The cerebral peduncles are a pair of structures located in the midbrain that conduct sensory and motor information. They serve as a pathway for nerve fibers traveling between the cerebrum and the rest of the central nervous system. The cerebral peduncles play a crucial role in coordinating voluntary movements and relaying sensory information from the body to the brain.

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  • 45. 

    The mesencephalon is made up of the cerebral peduncles, pons and the corpora quadrigemina.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    The mesencephalon is indeed made up of the cerebral peduncles, pons, and the corpora quadrigemina. The cerebral peduncles are responsible for connecting the cerebrum to the rest of the brain and spinal cord. The pons serves as a bridge between different parts of the brain, connecting the cerebrum, cerebellum, and medulla oblongata. The corpora quadrigemina are a set of four small structures located in the midbrain, which play a role in visual and auditory reflexes. Therefore, the statement is true.

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  • 46. 

    This area of the midbrain is rounded and controls breathing and sends sensory info to the thalmus and cerebellum.

    • A.

      Pons

    • B.

      Medulla oblongata

    • C.

      Corpora Quadrigemina

    • D.

      Cerebral Peduncles

    Correct Answer
    A. Pons
    Explanation
    The pons is a rounded area in the midbrain that controls breathing and sends sensory information to the thalamus and cerebellum. It is responsible for regulating the rate and depth of breathing, as well as transmitting sensory signals from the body to the thalamus and cerebellum for further processing. The pons also plays a role in coordinating movements and maintaining balance.

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  • 47. 

    This low portion of the midbrain controls autonomic functions like breathing, blood pressure, swallowing and vommitting.

    • A.

      Pons

    • B.

      Medulla Oblongata

    • C.

      Superior Colliculi

    • D.

      Inferior Colliculi

    Correct Answer
    B. Medulla Oblongata
    Explanation
    The medulla oblongata is the correct answer because it is a region in the lower portion of the midbrain that controls various autonomic functions. It regulates essential processes such as breathing, blood pressure, swallowing, and vomiting. The medulla oblongata serves as a vital connection between the brain and the spinal cord, allowing for the transmission of signals to and from the body.

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  • 48. 

    This portion of your brain aids in balance and also provides involuntary muscle control to aid in coordination.

    • A.

      Cerebrum

    • B.

      Medulla Oblongata

    • C.

      Frontal Lobe

    • D.

      Cerebellum

    Correct Answer
    D. Cerebellum
    Explanation
    The cerebellum is responsible for maintaining balance and coordinating muscle movements. It receives information from the sensory systems, the spinal cord, and other parts of the brain to regulate and fine-tune motor activities. It helps in the smooth execution of voluntary movements and also plays a role in motor learning and muscle memory.

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  • 49. 

    Dr. Cumberlidge taught us to remember what areas of the brain do what by learning how alcohol affects us as we drink. Put these afftected areas in order:1. Motor, Judgement, Speech (Frontal)2. Vision (Occipital)3. Senses (Parietal)4. Coordination (Cerebellum)5. Emotions (Deep to Temporal)

    • A.

      1 2 3 4 5

    • B.

      2 1 3 5 4

    • C.

      1 3 2 5 4

    • D.

      4 3 2 5 1

    Correct Answer
    C. 1 3 2 5 4
    Explanation
    Dr. Cumberlidge taught us that alcohol affects different areas of the brain in a specific order. First, it affects the motor skills, which are controlled by the frontal area of the brain. Then, it affects judgment and speech, which are also controlled by the frontal area. Next, it affects vision, which is controlled by the occipital area. After that, it affects the senses, which are controlled by the parietal area. Finally, it affects emotions, which are deep to the temporal area. Therefore, the correct order of the affected areas is 1 3 2 5 4.

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  • 50. 

    Cranial nerves are not considered part of the CNS.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    Cranial Nerves are part of the PNS.

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  • Mar 04, 2024
    Quiz Edited by
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    Theogmamabear
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