Ch.7

Question 0

Autonomic nervous system

Answer 0

-The division of the nervous system that functions involuntary; innervates cardiac muscle, smooth muscle, and glands.

Question 1

Afferent neuron​

Answer 1

-Nerve cells that carry impulses toward the CNS

Question 2

Axon​

Answer 2

-Neuron process that carries impulses away from the nerve cell body

Question 3

Brain stem

Answer 3

-The portion of the brain consisting of the medulla, pons, and midbrain

Question 4

Central nervous system​

Answer 4

-The brain and spinal cord

Question 5

Cerebellum

Answer 5

-Part of the hind-brain

Question 6

Cerebral hemisphere​​

Answer 6

• Part of the CNS

Half of the brain

Question 7

Cerebrospinal fluid

Answer 7

-The fluid produced by choroid plexuses

Question 8

Dendrites​

Answer 8

-The branching extension of neurons that carry electrical signals to the cell body

Question 9

Depolarization

Answer 9

-The loss of a state of polarity

Question 10

Efferent neuron​

Answer 10

-Neurons that conduct impulses away from the CNS

Question 11

Ganglion

Answer 11

-A group of nerve cell bodies located in the peripheral nervous system

Question 12

Gray matter​

Answer 12

-The grey area of the CNS; contains unmylelinated nerve fibers and nerve cell bodies

Question 13

Interneurons

Answer 13

-Completes the pathway between affernt and efferent neurons

Question 14

Meninges

Answer 14

-The membranes that Cover the brain and spinal cord

Question 15

​Myelin

Answer 15

-A white, fatty lipid substance

Question 16

Nerve​

Answer 16

-Bundle of neuronal processes (axons) outside the central nervous system

Question 17

Neuroglia

Answer 17

-The non-neuronal tissue of the CNS that performs supportive and other functions

Question 18

Neurons​

Answer 18

-Cells of the nervous system specialized to transmit messages throughout the body

Question 19

Nodes of Ranvier

Answer 19

-A gap in the myelin sheath of a nerve

Question 20

Peripheral nervous system​

Answer 20

-A system of nerves that connects the outlying parts of the body with the CNS

Question 21

Plexus

Answer 21

-A network of interlacing nerves, blood vessels, or lymphatic

Question 22

Polarization​

Answer 22

-The state of an unassimilated neuron or muscle cell in which the inside of the cell is relatively negative in comparison to the outside

Question 23

Receptor

Answer 23

-A peripheral nerve ending specialized for response to particular types if stimuli

Question 24

Reflex​

Answer 24

-Automatic reaction to a stimulus

Question 25

Repolarization

Answer 25

-Restoration of the membrane potential to the initial resting state

Question 26

Somatic nervous system​

Answer 26

-Part of the PNS

Voluntary control of movement

Question 27

Synapse

Answer 27

-The region of communication between neurons, or a neuromuscular junction between a neuron and a muscle cell

Question 28

White matter

Answer 28

-White substance of the CNS