Nervious System Terms

Front 1

Affectors

Back 1

Sensory nerve cells that RECEIVE stimuli

Front 2

Axon

Back 2

Part of neuron that CONDUCTS IMPULSES AWAY from cell body; each cell has ONE

Front 3

Autonomic nervous system

Back 3

Automatically regulates glands, smooth muscles of hollow organs, and heart

Front 4

Cell body

Back 4

Sending and receiving center of neuron, carries on metabolism, stores energy

Front 5

Central nervous system

Back 5

Nerve tissues that form the brain and spinal cord; controls voluntary acts

Front 6

Cerebral cortex

Back 6

Gray matter of cerebrum (outer layer)

Front 7

Cerebrospinal fluid

Back 7

Watery fluid protecting the brain and spinal cord

Front 8

Dendrite

Back 8

Neuron part that CARRIES IMPULSES TO cell body

Front 9

Effectors/ACTORS

Back 9

Nerve endings that carry out actions

Front 10

Electroencephalogram (EEG)

Back 10

Traces electrical activity of a brain

Front 11

Fissure

Back 11

A DEEP groove or furrow in an organ such as the brain

Front 12

Ganglion

Back 12

Mass of nerve tissues, nerve cell bodies, outside the CNS

Front 13

Gray Matter

Back 13

Grayish colored nerve tissue, primarily NONMYELINATED nerve fibers; contains MANY cell bodies of neurons

Front 14

Hemisphere

Back 14

Either half of the cerebrum or cerebellum

Front 15

Lobe

Back 15

A well-defined part of an organ separated by boundaries such as the brain

Front 16

Meninges

Back 16

3-layered membrane protects spinal cord and brain

Front 17

Myelinated (medullated)

Back 17

Covered with myelin

Front 18

Myelin sheath

Back 18

Noncellular, fatty covering of a nerve fiber

Front 19

Myoneural junction

Back 19

Ending of a nerve at a muscle

Front 20

Nerve

Back 20

Bundle of nerve fibers, blood vessels, and connective tissue OUTSIDE CNS

Front 21

Nerve fibers

Back 21

Threadlike projections of cytoplasm from cell body of neuron. (axons & dendrites)

Front 22

Nervous system

Back 22

Coordinates body activities Deals with brain, spinal cord,nerves

Front 23

Neuroglia

Back 23

Found ONLY in brain & spinal cord Support for nerve tissue (blood vessels, connective tissue, specialized cells)

Front 24

Neurology

Back 24

Study of the nervous system

Front 25

Neuron

Back 25

Basic nerve cell

Front 26

Peripheral nervous system

Back 26

Provides INPUT from sensory receptors TO CNS and output FROM CNS to effectors

Front 27

Plexus

Back 27

A network of nerves

Front 28

Regeneration

Back 28

Repair, regrowth, or restoration of a part

Front 29

Stimulus

Back 29

Any agent or influence that produces a response in living protoplasm

Front 30

Sulcus

Back 30

SLIGHT groove, furrow, or depression in an organ, especially of the brain

Front 31

Synapse

Back 31

JUNCTION of AXON and one or more DENDRITES which transmits nerve impulses in ONE direction ONLY

Front 32

Ventricle

Back 32

One of the cavities of the brain

Front 33

White matter

Back 33

Nerve tissue consisting of MYELINATED nerve fibers