1. Which nervous system includes all nerves outside the brain and spinal cord?
A.
Central nervous system
B.
Peripheral nervous system
C.
Endocrine system
D.
Skeletal system
Correct Answer:
Peripheral nervous system
Explanation:
The peripheral nervous system consists of nerves and ganglia located outside the brain and spinal cord.
2. How many pairs of cranial nerves are present in the human peripheral nervous system?
A.
10 pairs
B.
12 pairs
C.
24 pairs
D.
31 pairs
Correct Answer:
12 pairs
Explanation:
The human peripheral nervous system includes 12 pairs of cranial nerves that arise from the brain.
3. How many pairs of spinal nerves arise from the spinal cord?
A.
12 pairs
B.
24 pairs
C.
31 pairs
D.
43 pairs
Correct Answer:
31 pairs
Explanation:
There are 31 pairs of spinal nerves, which connect the spinal cord with different parts of the body.
4. Which structures mainly connect the central nervous system with the rest of the body?
A.
Nerves
B.
Bones
C.
Hormones
D.
Blood vessels
Correct Answer:
Nerves
Explanation:
Peripheral nerves carry sensory and motor signals between the central nervous system and the rest of the body.
5. The peripheral nervous system is mainly divided into which two functional divisions?
A.
Somatic and autonomic divisions
B.
Cranial and vertebral divisions
C.
Sensory and skeletal divisions
D.
Brain and spinal divisions
Correct Answer:
Somatic and autonomic divisions
Explanation:
The peripheral nervous system is functionally divided into the somatic nervous system and the autonomic nervous system.
6. Which part of the peripheral nervous system carries impulses from sense organs toward the central nervous system?
A.
Motor division
B.
Sensory division
C.
Autonomic division
D.
Skeletal division
Correct Answer:
Sensory division
Explanation:
The sensory division of the peripheral nervous system carries incoming impulses from receptors to the central nervous system.
7. Which part of the peripheral nervous system carries commands from the central nervous system to muscles or glands?
A.
Sensory division
B.
Motor division
C.
Receptor division
D.
Cranial division
Correct Answer:
Motor division
Explanation:
The motor division carries outgoing impulses from the central nervous system to effectors such as muscles and glands.
8. A cluster of nerve cell bodies located outside the central nervous system is called a:
A.
Nucleus
B.
Ganglion
C.
Synapse
D.
Receptor
Correct Answer:
Ganglion
Explanation:
In the peripheral nervous system, a ganglion is a group of nerve cell bodies located outside the brain and spinal cord.
9. Which type of nerves connects the spinal cord with the body?
A.
Cranial nerves
B.
Spinal nerves
C.
Optic nerves only
D.
Endocrine nerves
Correct Answer:
Spinal nerves
Explanation:
Spinal nerves arise from the spinal cord and connect it with receptors, muscles, and other structures of the body.
10. Which division of the peripheral nervous system controls voluntary movements of skeletal muscles?
A.
Somatic nervous system
B.
Autonomic nervous system
C.
Endocrine system
D.
Visceral sensory system
Correct Answer:
Somatic nervous system
Explanation:
The somatic nervous system controls voluntary actions by carrying motor impulses to skeletal muscles.
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