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Anatomy and Function of the Nervous System: Terms and Definitions, Quizzes of Biology

Definitions for various terms related to the anatomy and function of the nervous system, including the central and peripheral nervous systems, neurons, nerves, and neuroglia. It also covers the roles of different cell types, such as astrocytes, microglia, and oligodendrocytes, and discusses the concepts of synapses, action potentials, and reflex arcs.

Typology: Quizzes

2012/2013

Uploaded on 11/10/2013

shannon-keene17
shannon-keene17 🇺🇸

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TERM 1
Central Nervous System
DEFINITION 1
centrally locatedbrain and spinal cord
TERM 2
Peripheral Nervous System
DEFINITION 2
all parts that are away from centercranial nerves and spinal
nerves
TERM 3
motor (efferent)
DEFINITION 3
movement
TERM 4
sensory (afferent)
DEFINITION 4
from skin
TERM 5
nerves
DEFINITION 5
collection of neurons wrapped in conn. tissue packaging
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Central Nervous System

centrally locatedbrain and spinal cord

TERM 2

Peripheral Nervous System

DEFINITION 2

all parts that are away from centercranial nerves and spinal

nerves

TERM 3

motor (efferent)

DEFINITION 3

movement

TERM 4

sensory (afferent)

DEFINITION 4

from skin

TERM 5

nerves

DEFINITION 5

collection of neurons wrapped in conn. tissue packaging

somatic

refers to body wall(skin, skeletal muscles, bones, joints)

TERM 7

visceral

DEFINITION 7

organs within the major body cavities(lungs, heart, liver,

kidneys, etc.)

TERM 8

neuron

DEFINITION 8

single cell

TERM 9

cell body

DEFINITION 9

part of neuron containing nucleus

TERM 10

dendrites

DEFINITION 10

numerous small branches that come off of cell body

multipolar neuron

motor neuronsmany processes coming off of cell body

TERM 17

Electric current

DEFINITION 17

travels from dendrites to cell body to axon

TERM 18

neuroglia

DEFINITION 18

(glial cells)supporting cells of the nervous system

TERM 19

astrocytes

DEFINITION 19

create blood brain barrierregulates what substances from

blood will be allowed to leave bloodstream and enter tissue

fluid of brain and cordwrapped around capillaries

TERM 20

microglia

DEFINITION 20

phagocytic cells of nervous systemscavengers/gobble up

debris

ependymal cells

line ventricles of brain and help make CSF (fine tune

composition)

TERM 22

oligodendrocytes

DEFINITION 22

create myelin in the CNS onlycan create myelin around

multiple different neurons

TERM 23

ventricle

DEFINITION 23

cavities within the brain

TERM 24

synapse

DEFINITION 24

space between 2 communicating neuronscommunication is

one way

TERM 25

pre-synaptic neuron

DEFINITION 25

1st neuron in sequence

polysynaptic reflex

more than one synapse

TERM 32

interneuron

DEFINITION 32

very short, entirely within CNS, in between sensory and

motor neuron (polysynaptic)

TERM 33

cerebrospinal fluid

DEFINITION 33

CSFtissue fluid of brain/spinal cord