This set of Human Physiology Multiple Choice Questions & Answers (MCQs) focuses on “Neural Control and Coordination – Spinal Nerve”.
1. Which one of the following cranial nerves is carrying the nerve fibers originating from the Edinger Westphal nucleus?
a) Oculomotor
b) Trochlear
c) Vagus
d) Abducens
View Answer
Explanation: Oculomotor nerve is the 3rd cranial nerve, it enable most movement of eye and that raise the eyelid.
2. The tract of nerve fibers which connects the cerebral hemispheres is __________
a) Corpus luteum
b) Corpus callosum
c) Corpora quadrigemina
d) Cerebral aqueduct
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Explanation: Corpus callosum allows communication between two hemispheres of the brain. It is located near the centre of the brain.
3. 5th cranial nerve of frog is _________
a) Vagus
b) Trigeminal
c) Olfactory
d) Facial
View Answer
Explanation: Trigeminal nerve is the 5th cranial nerve. It is located within Meckel’s cave and contains cell bodies of incoming sensory nerve fibers.
4. In CNS myelinated fibers form the __________ while non myelinated fibers cells form the ___________
a) Grey matter, white matter
b) Ependymal cells, neurosecretory cells
c) White matter, grey matter
d) Neurosecretory cells, Ependymal cells
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Explanation: CNS has two kinds of tissues: grey matter and white matter. White matter is made of axons and grey matter contains cell bodies, dendrites and axons terminals of neurons.
5. How many pairs of cranial nerves originate from the brain of a rat?
a) 8
b) 10
c) 11
d) 12
View Answer
Explanation: 12 pairs of cranial nerves originate from the brain of rat. It has specialized functions.
6. Injury to the vagus nerve in human is not likely to affect _________
a) Movement of tongue
b) Pancreatic secretion
c) Cardiac movements
d) Gastrointestinal movements
View Answer
Explanation: Vagus nerve is the 10th cranial nerve. It is the longest cranial nerve. It contains motor and sensory fibers.
7. Which of the following cranial nerve is present in rabbit but absent in frog?
a) Olfactory
b) Optic
c) Hypoglossal
d) Glossopharyngeal
View Answer
Explanation: Hypoglossal nerve is the 12th cranial nerve. It innervates all the extrinsic and intrinsic muscles of the tongues.
8. Which of the following nerve is purely motor nerve?
a) Trigeminal
b) Vagus
c) Facial
d) Abducens
View Answer
Explanation: Abducens nerve is a nerve that controls movements of the lateral rectus muscle in humans. it is a 6th cranial nerve.
9. Skeletal muscles are controlled by __________
a) Somatic nerves
b) Autonomic nerves
c) Parasympathetic nerves
d) Sympathetic nerves
View Answer
Explanation: Somatic nerves are a part of the peripheral nervous system. It is associated with voluntary movement of the body via skeletal muscles.
10. The thin and convoluted outer layer of gray matter that covers the cerebral hemisphere is ________
a) Meninges
b) Thalamus
c) Medulla oblongata
d) Cerebral cortex
View Answer
Explanation: Cerebral cortex is the largest region of the cerebrum. It plays a key role in memory, attention, perception, awareness, thoughts, language etc.
Sanfoundry Global Education & Learning Series – Human Anatomy and Physiology.
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