Regulation: Nervous System

Question 1

neuron

Answer 1

the functional unit of the nervous system

Question 2

sensory neuron

Answer 2

transmit impulses form sense organs and receptors

Question 3

interneuron

Answer 3

make up the brain and spinal chord

Question 4

motor neuron

Answer 4

carry impulses from interneurons to skeletal and visceral muscles and glands

Question 5

nerve

Answer 5

groups/bundles of the axons of sensory and/or motor neurons

Question 6

central nervous system (CNS)

Answer 6

includes brain and spinal chord

Question 7

peripheral nervous system (PNS)

Answer 7

includes the nerves and sense receptors

Question 8

somatic

Answer 8

part of PNS - concerned with external environment

Question 9

autonomic

Answer 9

part of PNS - concerned with internal environment

Question 10

reflex arc

Answer 10

carries out simple, quick, and automatic responses to certain stimuli - touching a hot stove

Question 11

spinal cord

Answer 11

extends from the brain downward and is enclosed by the bones of vertebrate column (spine)

Question 12

brain

Answer 12

divided into three areas - protected by cranium

Question 13

cerebrum

Answer 13

largest portion of brain - complex and high level thinking - conscious and voluntary actions are controlled here - speech, vision, hearing, memory

Question 14

cerebellum

Answer 14

located behind cerebrum - responsible for muscle coordination and balance

Question 15

brain stem/medulla

Answer 15

controls basic homeostatic functions such as body temperature, blood pressure, and breathing