Peripheral Nervous System

Question 1

What are the functions of the nervous system?

Answer 1

Monitors the body’s internal and external environments via afferent sensory input
Integrates sensory input and motor commands
Coordinates voluntary and involuntary responses of many other organ systems via efferent motor output

Question 2

What are the two autonomic nervous systems?

Answer 2

Sympathetic and parasympathetic

Question 3

What do cranial nerves do?

Answer 3

Innervate the head and neck

Question 4

What are spinal nerves named according to?

Answer 4

The point at which they leave the spinal cord

Question 5

Which nerves are bilateral (sit either side of the spinal cord)?

Answer 5

Spinal nerves

Question 6

Which nerves connect with peripheral receptors or innervate specific skeletal muscles?

Answer 6

Spinal nerves

Question 7

How many pairs of spinal nerves are there?

Answer 7

31 pairs

Question 8

How many sets of cranial nerves are there?

Answer 8

12 sets

Question 9

How easily is the CNS repaired?

Answer 9

Very limited ability to repair damage -> neuroplasticity

Question 10

How easily can the peripheral nervous system repair?

Answer 10

It can repair if cell body and Schwann cells are intact