Functions and Components of the Nervous System

Question 1

function of the nervous system

Answer 1

• works in conjuction with the endocrine system to maintain hormonal balance.
• registers sensory messages and creates motor responses
• stores information

Question 2

components of the nervous system

Answer 2

• brain- 12 pair of cranial nerves,
• spinal cord- 31 pair of spinal nerves,
• nerves

Question 3

types of nerves

Answer 3

• afferent (sensory)
• efferent (motor)
• mixed

Question 4

afferent nerves

Answer 4

sensory nerves-nerves that transmit sensory messages from the sensory organ to the brain.

Question 5

efferent nerves

Answer 5

motor nerves- nerves that send a message from the brain to the muscles for movement.

Question 6

mixed nerves

Answer 6

nerves capable of sending messages in both directions creating both sensory and motor responses.

Question 7

foramen magnum

Answer 7

large opening at bottom of skull where the brain connects to the spinal cord

Question 8

2 main divisions of the Nervous System

Answer 8

central nervous system (CNS)

peripheral nervous system (PNS)

Question 9

2 important cranial nerves

Answer 9

• 5th (Trigemimal or Trifacial)

- 7th (Facial)

Question 10

5th cranial nerve or Trigeminal/Trifacial

Answer 10

Sensory nerve of the face.

Mixed nerve, controls the muscles of mastication

Question 11

7th cranial nerve or Facial

Answer 11

Motor nerve of the face.

Responsible for facial expressions and secretion or saliva and tears.