Ijmb Model Questions Vol1 2020 Biology Question 8

Practice essay / theory question 8 from the 2020 Ijmb Model Questions Vol1 Biology examination. This question covers Coordination .

Ijmb Model Questions Vol1 2020 Biology Essay / Theory

Topic: Coordination

Question 8 IJMB_MODEL_QUESTIONS_VOL1 • 2020 • BIOLOGY • essay

Coordination of movement in humans involves the integration of the nervous and muscular systems.

Question Parts

( a )

Outline the pathway of a voluntary skeletal muscle contraction from the motor cortex to the muscle fibre, naming all major neuronal structures involved.

( b )

Discuss how the speed of this signal transmission is modified by the presence of myelination and fibre diameter, and explain the physiological advantage of these modifications for rapid movements.

( c )

Compare and contrast a monosynaptic stretch reflex with a polysynaptic withdrawal reflex in terms of (i) sensory input, (ii) number of synapses, (iii) functional significance.

( d )

Design a simple experimental protocol to investigate the effect of fatigue on the latency of the patellar tendon reflex in healthy adults. Include the variables to be measured, control measures, and how data would be interpreted.

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About This Question

This is Ijmb Model Questions Vol1 2020 Biology Question 8. It is one of the essay questions from the 2020 Ijmb Model Questions Vol1 Biology examination.

The question covers Coordination .

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