Nervous system part 1

Question 1

gathering information.

To monitor changes occurring inside and outside the body

Answer 1

Sensory input

Question 2

Changes

Answer 2

stimuli

Question 3

To process and interpret sensory input and decide if action is needed

Answer 3

Integration

Question 4

A response to integrated stimuli

The response activates muscles or glands

Answer 4

Motor output

Question 5

Parts of the Central nervous system (CNS)

Answer 5

Brain
Spinal cord

Question 6

Parts of the Peripheral nervous system (PNS)

Answer 6

Nerve outside the brain and spinal cord

Question 7

Sensory division is also known as

Answer 7

afferent

Question 8

Nerve fibers that carry information to the central nervous system

Answer 8

Sensory (afferent) division

Question 9

Motor division is also known as

Answer 9

efferent

Question 10

Nerve fibers that carry impulses away from the central nervous system

Answer 10

Motor (efferent) division

Question 11

Two subdivisions of Motor (efferent) division

Answer 11

Somatic nervous system
Autonomic nervous system

Question 12

Is the voluntary subdivision of the motor division

Answer 12

Somatic nervous system

Question 13

Is the involuntary subdivision of the motor division

Answer 13

Autonomic nervous system

Question 14

An Abundant, star-shaped cells that is also known as Brace neurons. They Form barrier
between capillaries and neurons which Control the chemical environment of
the brain.

Answer 14

Astrocytes

Question 15

The support cell of the nervous tissue

Answer 15

Neuroglia / Glia

Question 16

A Spider-like phagocytes that Dispose of debris

Answer 16

Microglia

Question 17

Line cavities of the brain and spinal cord which Circulate
cerebrospinal fluid

Answer 17

Ependymal cells

Question 18

Produce myelin sheath around nerve fibers in the central nervous system.

Answer 18

Oligodendrocytes

Question 19

They Protect neuron cell bodies

Answer 19

Satellite cells

Question 20

Form myelin sheath in the peripheral nervous system

Answer 20

Schwann cells

Question 21

nerve cells

Answer 21

Neurons

Question 22

Cells specialized to transmit messages

Answer 22

Neurons

Question 23

Major regions of neurons

Answer 23

Cell body and Neuron processes

Question 24

nucleus and metabolic center of the cell

Answer 24

Cell body

Question 25

fibers that extend from the cell body

Answer 25

Nerve Processes

Question 26

specialized rough endoplasmic reticulum (RER)

Answer 26

Nissl substance

Question 27

intermediate CYTOSKELETON that maintains cell shape

Answer 27

Neurofibrils

Question 28

conduct impulses TOWARD the cell body

Answer 28

Dendrites

Question 29

conduct impulses AWAY from the cell body

Answer 29

Axons

Question 30

Axons end in

Answer 30

axonal terminals

Question 31

contain vesicles with neurotransmitters

Answer 31

Axonal terminals

Question 32

are separated from the next neuron by a gap

Answer 32

Axonal terminals

Question 33

the GAP between adjacent neurons

Answer 33

Synaptic cleft

Question 34

the JUNCTION between nerves

Answer 34

Synapse

Question 35

produce myelin sheaths in jelly-roll like fashion in the PNS

Answer 35

Schwann cells

Question 36

gaps in myelin sheath along the axon

Answer 36

Nodes of Ranvier

Question 37

Most neuron cell body are found in the central nervous system

Answer 37

central nervous system

Question 38

cell bodies and unmylenated fibers

Answer 38

Gray matter

Question 39

clusters of cell bodies within the white matter of the central nervous system

Answer 39

Nuclei

Question 40

collections of cell bodies outside the central nervous system

Answer 40

Ganglia

Question 41

Carry impulses from the sensory receptors which are located in the Cutaneous sense organs

Answer 41

Sensory (afferent) neurons

Question 42

detect stretch or tension

Answer 42

Proprioceptors

Question 43

Carry impulses from the central nervous system

Answer 43

Motor (efferent) neurons

Question 44

Interneurons are also known as

Answer 44

association neurons

Question 45

Found in neural pathways in the central nervous system which Connect sensory and motor neurons,

Answer 45

Interneurons

Question 46

3 Structural Classification of Neurons

Answer 46

Multipolar bipolar, and unipolar neurons

Question 47

many extensions from the cell body

Answer 47

Multipolar neurons

Question 48

one axon and one dendrite

Answer 48

Bipolar neurons

Question 49

have a short single process leaving the cell body

Answer 49

Unipolar neurons

Question 50

ability to respond to stimuli

Answer 50

Irritability

Question 51

ability to transmit an impulse

Answer 51

Conductivity

Question 52

The plasma membrane at rest is

Answer 52

polarized

Question 53

In the rested plasma membrane, Fewer __________ ions are inside the cell than outside the cell

Answer 53

positive

Question 53

a stimulus depolarizes the neuron’s membrane

Answer 53

Depolarization

Question 54

A deploarized membrane allows _______ to flow inside the membrane

Answer 54

sodium (Na+)

Question 55

The exchange of ions initiates an _______ ________ in the neuron

Answer 55

Action potential

Question 56

If the action potential (nerve impulse) starts, it is propagated over the entire _____

Answer 56

axon

Question 57

action potential is also known as

Answer 57

nerve impulse

Question 58

___________ ions rush out of the neuron after sodium ions rush in, which repolarizes the membrane

Answer 58

Potassium

Question 59

The _______________ ____ restores the original configuration

Answer 59

sodium-potassium pump

Question 60

The sodium-potassium pump requires

Answer 60

ATP

Question 61

Impulses travel faster when fibers have a ______ ______

Answer 61

myelin sheath

Question 62

are able to cross the synapse to another nerve

Answer 62

Impulses

Question 63

is released from a nerve’s axon terminal

Answer 63

Neurotransmitter

Question 64

The ________ of the next neuron has receptors that are stimulated by the neurotransmitter

Answer 64

dendrite

Question 65

An action potential is started in the _________

Answer 65

dendrite