Nervous System

Question 1

autonomic nervous system

Answer 1

the parts of the PNS that carry messages between the CNS and organs that function autonomously

Question 2

arachnoid mater

Answer 2

delicate weblike layer of the meninges; middle later

Question 3

axon

Answer 3

the part of a neuron that conducts electrical impulses

Question 4

brain stem

Answer 4

the part of the brain that controls functions, including heart rate, breathing, and body temperature, includes midbrain, pons, and medulla oblongata

Question 5

cell body

Answer 5

one of the three parts of a neuron cell; the other two are the axon and dendrites

Question 6

central nervous system

Answer 6

the subdivision of the nervous system that includes the brain and spinal cord

Question 7

cerebellum

Answer 7

the part of the brain that controls the skeletal muscles

Question 8

cerebral cortex

Answer 8

the gray matter surrounding the cerebrum

Question 9

cerebrospinal fluid

Answer 9

the fluid in and around the brain and spinal cord

Question 10

cerebrum

Answer 10

the largest part of the brain; controls conscious thought and stores memories

Question 11

dendrites

Answer 11

one of two processes extending from a neuron cell body; the other is the axon

Question 12

diencephalon

Answer 12

the part of the brain containing both the thalamus and the hypothalamus

Question 13

dura mater

Answer 13

the outer membrane, the fibrous membrane protecting the CNS

Question 14

frontal lobe

Answer 14

the front part of the brain from which voluntary muscles movements and other sensory and motor tasks are directed

Question 15

ganglion

Answer 15

a group of neuron cell bodies grouped together in the PNS

Question 16

hypothalamus

Answer 16

the hormone and emotion center of the brain that controls autonomic function

Question 17

leptomeninx

Answer 17

collective term for the arachnoid mater and pia mater

Question 18

medulla oblongata

Answer 18

the part of the brain stem that sends sensory information to the thalamus to direct the autonomic functions of the heart, lungs, and other viscera

Question 19

meninges

Answer 19

three-layer membrane surrounding brain and spinal cord

Question 20

mesmencephalon

Answer 20

the middle part of the brain between the diencephalon and the pons; also called the midbrain

Question 21

myelin sheath

Answer 21

a fatty white envelope of cells providing protection and electrical insulation to neurons

Question 22

nerve

Answer 22

a whitish, cordlike structure composed of one or more bundles of nerve fibers outside the CNS together with their connective tissues, and nourishing blood vessels

Question 23

neuroglia

Answer 23

cells within both the CNS and PNS, which, although they are external to neurons, form an essential part of nerve tissue

Question 24

neuron

Answer 24

a nerve cell, including the cell body and its axon

Question 25

neurontransmitter

Answer 25

chemical released by the pre-synaptic cell that is then picked up by the postsynaptic cell to effect an action

Question 26

nucleus

Answer 26

a group of neuron cell bodies grouped together in the CNS

Question 27

occipital lobe

Answer 27

the part of the brain that processes information from the sense of sight and other sensory and motor task

Question 28

parietal lobe

Answer 28

the part of the brain that processes information form the sense of touch and other sensory and motor tasks

Question 29

peripheral nervous system

Answer 29

made up of neurons, neuroglia, and associated tissue, including the cranial and spinal nerves and the sensory and motor nerves that extend throughout the body

Question 30

pia mater

Answer 30

inner layer of the meninges

Question 31

pons

Answer 31

the part of the brain stem that passes information to the cerebellum and the thalamus to regulate subconscious somatic activites

Question 32

psychomotor

Answer 32

an adjective used to indicate the relation between psychic activity and muscular movement