Chapter 11 Organization Of The Nervous System
The nervous system is a vital system in the human body and can be divided into regions that are responsible for motor and sensory functions. This system is involved in receiving information about the environment around us and generating responses to that information. Take the test below and get to review chapter 11 on the organization of the nervous system and see which parts you need to read more on.
Questions and Answers
- 1.
Transmits impulses from the receptors to the CNS
- A.
Afferent (Sensory)
- B.
Efferent (Motor)
- C.
Automatic
Correct Answer
A. Afferent (Sensory)Explanation
The correct answer is Afferent (Sensory). Afferent neurons, also known as sensory neurons, transmit impulses from the receptors (such as those in the skin, eyes, ears, etc.) to the central nervous system (CNS). These neurons play a crucial role in allowing us to perceive and interpret sensory information from our environment.Rate this question:
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- 2.
Transmits impulses from the CNS to the effectors
- A.
Afferent (Sensory)
- B.
Efferent (Motor)
- C.
Automatic
Correct Answer
B. Efferent (Motor)Explanation
The correct answer is "Efferent (Motor)". This is because efferent neurons transmit impulses from the central nervous system (CNS) to the effectors, which are muscles or glands that respond to these impulses. Afferent neurons, on the other hand, transmit impulses from sensory receptors to the CNS. The term "automatic" does not accurately describe the function of these neurons.Rate this question:
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- 3.
Transmits impulses to voluntary structures
- A.
Somatic nervous system
- B.
Autonomic nervous system
- C.
Sympathetic nervous system
Correct Answer
A. Somatic nervous systemExplanation
The somatic nervous system is responsible for transmitting impulses to voluntary structures in the body. This means that it controls the movement of skeletal muscles and the sensations we perceive from our external environment. Unlike the autonomic nervous system, which controls involuntary functions, the somatic nervous system allows us to consciously control our actions and interact with the world around us. The sympathetic nervous system is a part of the autonomic nervous system and is responsible for the "fight or flight" response in times of stress or danger.Rate this question:
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- 4.
Transmits impulses into involuntary structures
- A.
Somatic nervous system
- B.
Autonomic nervous system
- C.
Sympathetic nervous system
Correct Answer
B. Autonomic nervous systemExplanation
The autonomic nervous system is responsible for regulating involuntary processes in the body, such as heart rate, digestion, and breathing. It transmits impulses to these involuntary structures, allowing them to function without conscious control. This is in contrast to the somatic nervous system, which controls voluntary movements, and the sympathetic nervous system, which is a part of the autonomic nervous system that activates the body's fight or flight response.Rate this question:
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- 5.
Increases organ funtions
- A.
Sympathetic nervous system
- B.
Parasympathetic nervous system
- C.
Autonomic nervous system
Correct Answer
A. Sympathetic nervous systemExplanation
The sympathetic nervous system is responsible for the body's "fight or flight" response, which prepares the body for action in stressful or dangerous situations. It increases heart rate, dilates blood vessels, and increases blood flow to muscles, all of which enhance organ functions. Therefore, the sympathetic nervous system is the correct answer as it directly affects and increases organ functions.Rate this question:
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- 6.
Decreases organ functions, i.e., blood pressure
- A.
Sympathetic nervous system
- B.
Parasympathetic nervous system
- C.
Autonomic nervous system
Correct Answer
B. Parasympathetic nervous systemExplanation
The parasympathetic nervous system is responsible for regulating rest and digest functions in the body. It works in opposition to the sympathetic nervous system, which is responsible for the fight or flight response. When the parasympathetic nervous system is activated, it decreases organ functions such as blood pressure, heart rate, and respiratory rate, promoting relaxation and conserving energy. This is why the correct answer is the parasympathetic nervous system.Rate this question:
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- 7.
Brain & spinal cord are ______
- A.
Central Nervous System (CNS)
- B.
Peripheral Nervous System (PNS)
- C.
Automatic Nervous System
Correct Answer
A. Central Nervous System (CNS)Explanation
The brain and spinal cord make up the Central Nervous System (CNS). The CNS is responsible for processing and coordinating information received from the senses and sending instructions to the rest of the body. It controls voluntary movements, thoughts, emotions, and other complex functions. The Peripheral Nervous System (PNS) consists of the nerves that extend from the CNS to the rest of the body, while the Automatic Nervous System is a subdivision of the PNS that controls involuntary bodily functions.Rate this question:
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- 8.
All other parts of the nerous system - connects the CNS with body parts
- A.
Central Nervous System (CNS)
- B.
Peripheral Nervous System (PNS)
- C.
Automatic Nervous System
Correct Answer
B. Peripheral Nervous System (PNS)Explanation
The correct answer is the Peripheral Nervous System (PNS). The PNS is responsible for connecting the Central Nervous System (CNS) with the various parts of the body. It consists of nerves that extend from the brain and spinal cord to the rest of the body, allowing for communication between the CNS and the limbs, organs, and other body parts. This system controls voluntary movements and also regulates involuntary functions such as digestion, heart rate, and breathing.Rate this question:
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- 9.
Consists of brain and spinal cord
- A.
CNS
- B.
PNS
- C.
ANS
Correct Answer
A. CNSExplanation
The correct answer is CNS, which stands for Central Nervous System. The CNS consists of the brain and spinal cord, which are responsible for processing and coordinating information in the body. The brain controls various functions such as thinking, memory, and movement, while the spinal cord relays messages between the brain and the rest of the body.Rate this question:
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- 10.
Consists of cranial nerves and spinal nerves that branch out and connect all body parts of the CNS
- A.
CNS
- B.
ANS
- C.
PNS
Correct Answer
C. PNSExplanation
The peripheral nervous system (PNS) consists of cranial nerves and spinal nerves that branch out and connect all body parts of the central nervous system (CNS). The CNS includes the brain and spinal cord, while the PNS includes all the nerves outside of the CNS. These peripheral nerves transmit information from the sensory organs to the CNS and relay motor commands from the CNS to the muscles and glands in the body. Therefore, the PNS is responsible for connecting the CNS to the rest of the body and facilitating communication between them.Rate this question:
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- 11.
The membranous coverings around the brain and the spinal cord
- A.
Meninges
- B.
Arachnoid membrane
- C.
Pia mater
Correct Answer
A. MeningesExplanation
The correct answer is meninges. The meninges are the membranous coverings around the brain and the spinal cord. They consist of three layers: the dura mater, the arachnoid mater, and the pia mater. The meninges provide protection and support to the central nervous system.Rate this question:
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- 12.
Three types of meninges
- A.
Dura mater, arachnoid membrane, pia mater
- B.
White, dense, fibrous tissue
- C.
Cerebrum, diencephalon, pons
Correct Answer
A. Dura mater, arachnoid membrane, pia materExplanation
The correct answer is dura mater, arachnoid membrane, pia mater. These are the three types of meninges, which are protective membranes that surround the brain and spinal cord. The dura mater is the tough outermost layer, the arachnoid membrane is the middle layer, and the pia mater is the delicate innermost layer. These layers work together to protect the central nervous system and provide support and cushioning.Rate this question:
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- 13.
Outermost layer; tough/thick; white, dense fibrous tissue; nerves/blood vessels; internal periosteum of the cranial bones; extends within the folds of the brain to support tissue; makes sinues for venous return of blood from brain to heart; within the vertebral canal; surrounds the spinal cord as strong sheath; attached to spinal cord at regular intervals by bands of pia mater called denticulate ligaments; the space between the vertebrae and the dura is the epidural space Epidural sapce contains blood vessels, loose connective tissue, and adipose tissue to form a protecive pad around the spinal cord
- A.
Arachnoid
- B.
Dura mater
- C.
Pia mater
Correct Answer
B. Dura materExplanation
The correct answer is Dura mater. The given explanation describes the dura mater as the outermost layer of tough and thick white, dense fibrous tissue. It mentions that the dura mater extends within the folds of the brain to support tissue and forms sinuses for venous return of blood from the brain to the heart. It also states that the dura mater surrounds the spinal cord as a strong sheath and is attached to the spinal cord at regular intervals by bands of pia mater called denticulate ligaments. The information provided aligns with the characteristics and functions of the dura mater.Rate this question:
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- 14.
Thin non vascular, fibrous tissue membrane under the dura; space between the dura dn the aracnoid membrane is the subdural space; subdural space contains small amount of serous fluid-thin, delicate membrane
- A.
Arachnoid
- B.
Dura mater
- C.
Pia mater
Correct Answer
A. ArachnoidExplanation
The correct answer is Arachnoid. The question is asking for the thin nonvascular fibrous tissue membrane under the dura. This describes the arachnoid membrane, which is located between the dura mater and the pia mater. The arachnoid membrane forms the middle layer of the meninges and is responsible for protecting the brain and spinal cord.Rate this question:
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- 15.
Thin, delicate membrane intimate to the brain and spinal cord; the space between the arachnoid membrane and the pia is the subarachnoid space that contains CSF
- A.
Arachnoid
- B.
Dura mater
- C.
Pia mater
Correct Answer
C. Pia materExplanation
The pia mater is a thin and delicate membrane that is intimately attached to the brain and spinal cord. It is located between the arachnoid membrane and the brain tissue. The space between the pia mater and the arachnoid membrane is known as the subarachnoid space, which contains cerebrospinal fluid (CSF). The pia mater plays a crucial role in protecting and nourishing the brain and spinal cord.Rate this question:
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- 16.
Cushion around the brain is
- A.
Subdural space
- B.
Subarachnoid space
- C.
Meninx
Correct Answer
B. Subarachnoid spaceExplanation
The subarachnoid space is the correct answer. It is a space filled with cerebrospinal fluid (CSF) that surrounds the brain and spinal cord. This space acts as a cushion, providing protection and support to the brain. The subdural space is located between the dura mater and arachnoid mater, while the meninx refers to the three layers of protective membranes (dura mater, arachnoid mater, and pia mater) that cover the brain and spinal cord.Rate this question:
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Mar 22, 2023Quiz Edited by
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Jul 20, 2011Quiz Created by
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