Motor Speech Of Nervous System Quiz 3

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Motor Speech Of Nervous System Quiz 3 - Quiz

This quiz covers some anatomy and basic subject matter how the nervous system and speech motor system interact. Let's play this quiz!


Questions and Answers
  • 1. 

    The final common pathway is referred to as a

    • A.

      Upper motor system

    • B.

      Lower motor system

    Correct Answer
    B. Lower motor system
    Explanation
    The final common pathway is referred to as the lower motor system because it consists of the motor neurons that directly innervate the muscles. These motor neurons are located in the spinal cord and brainstem and their axons project to the muscles, causing them to contract. The lower motor system is responsible for executing voluntary movements and is under the control of the upper motor system, which includes the motor areas of the cerebral cortex and other descending pathways.

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  • 2. 

    The four major divisions of the motor system are

    • A.

      Extrapyramid, corticospinal, corticorubial, tectcospinal

    • B.

      Final common pathway, direct activation pathway, indirect activation pathway, control circuits

    • C.

      Red nucleus, striated muscle, motor cortex, spinal column

    Correct Answer
    B. Final common pathway, direct activation pathway, indirect activation pathway, control circuits
    Explanation
    The correct answer is final common pathway, direct activation pathway, indirect activation pathway, control circuits. These divisions of the motor system are responsible for different aspects of motor control. The final common pathway refers to the motor neurons that directly innervate the muscles and execute the motor commands. The direct activation pathway is responsible for voluntary and skilled movements, while the indirect activation pathway regulates posture and muscle tone. Control circuits are involved in coordinating and fine-tuning motor movements.

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  • 3. 

    What does the cerebellum do?

    • A.

      Integrates and coordinates smooth directed movements

    • B.

      Mediates subconsious controlled motor movements

    • C.

      Mediates consious controlled motor movements

    • D.

      Plans and programs postural and supportive components of motor activity

    Correct Answer
    A. Integrates and coordinates smooth directed movements
    Explanation
    The cerebellum is responsible for integrating and coordinating smooth directed movements. It helps in maintaining balance and posture, as well as in the coordination of voluntary movements such as walking, reaching, and writing. It receives information from various sensory systems and compares it with motor commands from the cerebral cortex to ensure accurate and coordinated movements.

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  • 4. 

    The lower motor neuron system is made up of

    • A.

      Corticobulbar and corticospinal tracts

    • B.

      Cranial and spinal nerves

    • C.

      Pyramidal and extrapyramidal systems

    Correct Answer
    B. Cranial and spinal nerves
    Explanation
    The lower motor neuron system is responsible for transmitting signals from the central nervous system to the muscles. This system includes the cranial and spinal nerves, which are the main pathways through which motor signals are transmitted from the brain to the muscles. The cranial nerves innervate the muscles of the head and neck, while the spinal nerves innervate the muscles of the rest of the body. Therefore, the cranial and spinal nerves are integral components of the lower motor neuron system.

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  • 5. 

    The indirect activation pathway

    • A.

      Mediates contolled voluntary movements

    • B.

      Mediates subconsious automatic muscle activities (posture, muscle tone, etc)

    Correct Answer
    B. Mediates subconsious automatic muscle activities (posture, muscle tone, etc)
    Explanation
    The indirect activation pathway is responsible for mediating subconscious automatic muscle activities such as posture and muscle tone. This pathway operates outside of conscious control and helps to maintain the body's stability and coordination. It is distinct from the direct activation pathway, which is involved in controlled voluntary movements that are consciously initiated. Therefore, the correct answer is that the indirect activation pathway mediates subconscious automatic muscle activities.

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  • 6. 

    The indirect activation pathway is a

    • A.

      Lower motor neuron system

    • B.

      Upper motor neuron system

    Correct Answer
    B. Upper motor neuron system
    Explanation
    The correct answer is upper motor neuron system. The indirect activation pathway refers to a neural pathway that involves the upper motor neurons. These neurons are responsible for transmitting signals from the brain to the lower motor neurons, which in turn control the muscles. This pathway is involved in the regulation and coordination of voluntary movements. The upper motor neuron system plays a crucial role in motor control and is essential for the execution of skilled movements.

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  • 7. 

    The extrapyramidal tracts is made up of

    • A.

      Corticobulbar and corticospinal tracts

    • B.

      Corticorubral,corticoreticular, rubrospinal, reticulospinal, and vestibulospinal tracts

    Correct Answer
    B. Corticorubral,corticoreticular, rubrospinal, reticulospinal, and vestibulospinal tracts
    Explanation
    The extrapyramidal tracts are a collection of neural pathways that are responsible for controlling and modulating motor movements. These tracts include the corticorubral tract, which connects the cerebral cortex to the red nucleus in the midbrain; the corticoreticular tract, which connects the cerebral cortex to the reticular formation in the brainstem; the rubrospinal tract, which connects the red nucleus to the spinal cord; the reticulospinal tract, which connects the reticular formation to the spinal cord; and the vestibulospinal tract, which connects the vestibular nuclei to the spinal cord. These tracts work together to regulate and coordinate voluntary and involuntary movements.

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  • 8. 

    The control circuitry system is all about the

    • A.

      Pyramidal system - corticospinal and corticobulbar tracts

    • B.

      The extrapyramidal system - basal ganglia

    Correct Answer
    B. The extrapyramidal system - basal ganglia
    Explanation
    The correct answer is the extrapyramidal system - basal ganglia. The control circuitry system consists of two main components: the pyramidal system and the extrapyramidal system. The pyramidal system includes the corticospinal and corticobulbar tracts, which are responsible for voluntary movement. On the other hand, the extrapyramidal system, which includes the basal ganglia, is involved in regulating and modulating movement, as well as controlling posture and muscle tone. Therefore, the basal ganglia is a part of the extrapyramidal system and plays a crucial role in motor control.

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  • 9. 

    Broca's area

    • A.

      Believed to be important for the storage and retrieval of mental representations of words and word meanings

    • B.

      Important for planning and organizing speech movements to be executed by the primary motor cortex

    Correct Answer
    B. Important for planning and organizing speech movements to be executed by the primary motor cortex
    Explanation
    Broca's area is responsible for planning and organizing speech movements. It plays a crucial role in coordinating the muscles involved in speech production. This area is connected to the primary motor cortex, which is responsible for executing the planned movements. Therefore, Broca's area is important for the smooth execution of speech and ensuring that the intended words are articulated correctly.

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  • 10. 

    What is also known as the auditory association cortex?

    • A.

      Broca's area

    • B.

      Wernicke's area

    Correct Answer
    B. Wernicke's area
    Explanation
    Wernicke's area is also known as the auditory association cortex. This area of the brain is responsible for processing and understanding language, particularly the comprehension of spoken language. It is located in the left hemisphere of the brain, near the temporal lobe. Damage to Wernicke's area can result in a language disorder called Wernicke's aphasia, where individuals have difficulty understanding and producing coherent speech.

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  • 11. 

    Broca's area (motor speech area) is located in

    • A.

      Occipital lobe

    • B.

      Posterior inferior frontal lobe

    • C.

      Superior left temporal lobe

    Correct Answer
    B. Posterior inferior frontal lobe
    Explanation
    Broca's area, also known as the motor speech area, is responsible for the production of speech. It is located in the posterior inferior frontal lobe of the brain. This area plays a crucial role in coordinating the movements of the muscles involved in speech production. Damage to Broca's area can result in a condition called Broca's aphasia, characterized by difficulty in producing speech while comprehension remains intact. Therefore, the correct answer is the posterior inferior frontal lobe.

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  • 12. 

    Wernicke's area is important for

    • A.

      Planning and organizing speech

    • B.

      Knowledge and use of grammatic and linguistic rules

    Correct Answer
    B. Knowledge and use of grammatic and linguistic rules
    Explanation
    Wernicke's area, located in the left hemisphere of the brain, is responsible for the comprehension and production of language. It plays a crucial role in understanding and using grammatical and linguistic rules. Damage to this area can result in difficulties with language comprehension and production, such as the inability to understand or produce coherent sentences. Therefore, the correct answer stating that Wernicke's area is important for knowledge and use of grammatical and linguistic rules is accurate.

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