Nervous System

Question 1

any change or signal in the environment that can make an organism react.

Answer 1

Stimulus:

Question 2

is what your body does in reaction to a stimulus. –You sat at the fly

Answer 2

Response:

Question 3

cells that carry information through your nervous system.

Answer 3

Neuron:

Question 4

the message that a neuron carries.

Answer 4

Nerve impulse:

Question 5

threadlike extensions that carry impulses toward the neuron’s cell body

Answer 5

Dendrite:

Question 6

part of the neuron that carries impulses away from the cell body.

Answer 6

Axon:

Question 7

a bundle of neurons or nerve fibers. Nerve fibers are arranged in parallel bundles covered with connective tissue, something like a package of uncooked spaghetti wrapped in cellophane.

Answer 7

Nerve:

Question 8

a neuron that picks up stimuli from the internal or external environment and converts each stimulus into a nerve impulse.

Answer 8

Sensory Neuron:

Question 9

is a neuron that carries nerve impulses from one neuron to another.

Answer 9

Interneuron:

Question 10

sends an impulse to a muscle or gland, and the muscle or gland reacts in response.

Answer 10

Motor Neuron:

Question 11

the junction where one neuron can transfer an impulse to another structure (nerve, muscle, gland, etc.).

Answer 11

Synapse:

Question 12

consists of the BRAIN and SPINAL CORD

Answer 12

Central Nervous system:

Question 13

includes all the nerves located outside of the central nervous system.

Answer 13

Peripheral nervous system:

Question 14

located in the skull, in the part of the central nervous system that controls most functions in the body.

Answer 14

Brain:

Question 15

is the thick column of nervous tissue that links the brain to most of the nerves in the peripheral nervous system

Answer 15

Spinal Cord:

Question 16

the largest part of the brain, which interprets input from the senses, controls movement, and carries out complex mental processes such as learning and remembering.

Answer 16

Cerebrum:

Question 17

the second larges part of the brain , which coordinates the actions of your muscles and helps you keep balance.

Answer 17

Cerebellum:

Question 18

It lies between the cerebellum and spinal cord, controls your body’s involuntary actions. – Those that occur automatically.

Answer 18

Brain stem:

Question 19

is part of the peripheral nervous system that controls voluntary actions such as using a fork or tying your shoes.

Answer 19

Somatic nervous system:

Question 20

is part of the peripheral nervous system that controls involuntary actions for example the contractions of the smooth muscles that adjust the diameter of blood vessels.

Answer 20

Autonomic nervous system:

Question 21

is a response that happened automatically. It is an automatic response that occurs very rapidly and without conscious controls. REFLEXES HELP TO PROTECT THE BODY.

Answer 21

Reflex:

Question 22

IS a bruise-like injury of the brain. It occurs when the soft tissue of the brain collides against the skull.

Answer 22

Concussion: