The Nervous System

Question 1

Stimulus

Answer 1

Any change or signal in the environment that an organism can recognize and react to

Question 2

Response

Answer 2

A reaction to a stimulus

Question 3

Neurons

Answer 3

Cells that carry info through your nervous system

Question 4

Nerve impulse

Answer 4

The message that a neutron carries

Question 5

Dendrite

Answer 5

A branch-like structure that picks up the impulses

Question 6

Axon

Answer 6

The long structure leading away from the cell body

Question 7

Nerve

Answer 7

A bundle of nerve fibers

Question 8

Sensory neuron

Answer 8

Picks up a stimulus and coverts it into a nerve impulse

Question 9

Interneuron

Answer 9

Carries a nerve impulse to another interneuron or to a moot neuron

Question 10

Motor neuron

Answer 10

Sends an impulse to a muscle or gland, enabling it to respond

Question 11

Central nervous system

Answer 11

Includes the brain and spinal cord, and acts like a traffic cop

Question 12

Peripheral nervous system

Answer 12

Includes all the nerves outside of the central nervous system, which are like the car drivers

Question 13

Brain

Answer 13

Control center

Question 14

Spinal cord

Answer 14

A thick column of nervous tissue that links the brain to the peripheral nervous system

Question 15

Cerebrum

Answer 15

Interprets input from your senses, controls movement, and carries out complex mental processing

Question 16

Cerebellum

Answer 16

Coordinates your muscle actions and helps you keep your balance

Question 17

Brain system

Answer 17

Controls your body’s involuntary actions

Question 18

Somatic nervous system

Answer 18

Controls voluntary actions

Question 19

Automatic nervous system

Answer 19

Controls involuntary actions

Question 20

Reflex

Answer 20

An automatic response that occurs rapidly without conscious control