Gce Model Questions Vol1 2024 Biology Question 8

Practice essay / theory question 8 from the 2024 Gce Model Questions Vol1 Biology examination. This question covers Coordination, Nervous system, Reflexes, Motor control, Neuroplasticity .

Gce Model Questions Vol1 2024 Biology Essay / Theory
Topics: Coordination Nervous system Reflexes Motor control Neuroplasticity
Question 8 GCE_MODEL_QUESTIONS_VOL1 • 2024 • BIOLOGY • essay

Coordination of movement in the human body relies on the integrated operation of the nervous system.

Question Parts

( a )
Outline the structure of a typical monosynaptic stretch reflex arc and explain why it is important for maintaining posture.
( b )
Compare the pathways of somatic and autonomic nervous systems in terms of (i) number of neurones in the efferent limb, (ii) type of effectors, and (iii) typical physiological responses.
( c )
A patient suffers a complete transection of the spinal cord at the T12 level. Predict which of the following reflexes are likely to be preserved and which are lost: (i) patellar tendon reflex, (ii) plantar (Babinski) reflex, (iii) abdominal reflex, (iv) withdrawal reflex of the foot. Justify your answer.
( d )
Discuss how neuroplasticity can contribute to the recovery of coordinated movement after a spinal cord injury, citing at least two cellular or network mechanisms.

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About This Question

This is Gce Model Questions Vol1 2024 Biology Question 8. It is one of the essay questions from the 2024 Gce Model Questions Vol1 Biology examination.

The question covers Coordination, Nervous system, Reflexes, Motor control, Neuroplasticity .

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