The Nervous System

Question 1

nervous system

Answer 1

communication network within the body

Question 2

central nervous system (CNS)

Answer 2

brain and spinal cord; coordinates activity of the body

Question 3

peripheral nervous system (PNS)

Answer 3

nerves connecting the CNS to the rest of the body and environment

Question 4

peripheral nervous system subdivisions

Answer 4

somatic

autonomic

Question 5

somatic

Answer 5

serves outer areas of the body and skeletal muscle; voluntary

Question 6

autonomic

Answer 6

involuntary systems (e.g. heart, digestion)

Question 7

autonomic subdivisions

Answer 7

parasympathetic

sympathetic

Question 8

parasympathetic

Answer 8

decreases activation

Question 9

sympathetic

Answer 9

increases activation to prep for activity

Question 10

neuron

Answer 10

functional unit of the nervous system

Question 11

motor (efferent) neurons

Answer 11

transmit nerve impulses from CNS to effector sites

Question 12

sensory (afferent) neurons

Answer 12

respond to stimuli; transmit nerve impulses from effector sites to CNS

Question 13

mechanoreceptors

Answer 13

sense distortion in body tissues

Question 14

joint receptors

Answer 14

respond to pressure, acceleration, and deceleration of joints

Question 15

Golgi tendon organs (GTO)

Answer 15

sense changes in muscular tension

Question 16

muscle spindles

Answer 16

sense changes in muscular length

Question 17

nervous system functions

Answer 17

sensory: changes in the environment
integrative: analyze and interpret
motor: the neuromuscular response