Neurophysiology - Intro

Question 1

A nervous system affords the organism the ability ….

Answer 1

to perceive, move within, and interact with its environment

Question 2

A nervous system (NS) permits an organism….

Answer 2

to better meets its
homeostatic needs thus increasing its chances of survival

Question 3

Describe Efferents

Answer 3

Exiting - Nerve connections that conduct away from the brain

Question 4

Describe afferents

Answer 4

Arriving - Nerve connections that conduct towards the brain

Question 5

Describe the basic subdivision of the nervous system (3 parts)

Answer 5

Central Nervous System (CNS)
Peripheral Nervous System(PNS)
Enteric nervous system (ENS)

Question 6

What is the CNS made up of ?

Answer 6

Brain and spinal chord

Question 7

What is the PNS made up of ?

Answer 7

Composed of cranial and spinal nerves
- can be further subdivided into as somatic (skeletal muscle, skin, retina) and
visceral/autonomic (abdomen and thoracic organs smooth muscle, exocrine glands)

Question 8

What is the Enteric nervous system (ENS)?

Answer 8

The nerve network in the wall of the digestive tract. Sometimes referred to as the third component of the nervous system.