Neco Model Questions Vol1 2017 Biology Question 8

Practice essay / theory question 8 from the 2017 Neco Model Questions Vol1 Biology examination. This question covers coordination, nervous system, endocrine system .

Neco Model Questions Vol1 2017 Biology Essay / Theory
Topics: coordination nervous system endocrine system
Question 8 NECO_MODEL_QUESTIONS_VOL1 • 2017 • BIOLOGY • essay
Neco Model Questions Vol1 2017 Biology Question 8 diagram

The diagram is a sagittal, labelled illustration of the human brain and pituitary gland. It shows the following labelled structures: (i) Primary motor cortex (frontal lobe), (ii) Hypothalamus, (iii) Cerebellum, (iv) Anterior pituitary, (v) Posterior pituitary, (vi) Spinal cord. Using this diagram, answer the questions that follow.

Question Parts

( a )
Identify the structure labelled (i) and describe its primary function in the coordination of voluntary movement.
( b )
The hypothalamus (labelled ii) regulates the anterior pituitary. Explain the hormonal pathway by which the hypothalamus controls the release of thyroid‑stimulating hormone (TSH), naming the releasing factor involved.
( c )
Damage to the cerebellum (labelled iii) can impair coordination. Discuss two distinct motor deficits that may result from cerebellar injury and explain the neural mechanisms underlying each deficit.
( d )
A sudden drop in blood glucose is detected and corrected through neural and hormonal mechanisms. Using the diagram, outline the sequence of events, naming at least three labelled structures and describing the role of each in restoring normal glucose levels.

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About This Question

This is Neco Model Questions Vol1 2017 Biology Question 8. It is one of the essay questions from the 2017 Neco Model Questions Vol1 Biology examination.

The question covers coordination, nervous system, endocrine system .

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