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BIO 201 > CH 11 > Flashcards

CH 11 Flashcards

1
Q

These cells conduct impulses within the nervous system

A

neurons

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2
Q

master control and communication system of body

A

Nervous system

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3
Q

What are the three parts of the nervous system?

A

Sensory Input

Integration

Motor output

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4
Q

Nervous system that deals with the brain and spinal cord

A

Central Nervous System (CNS)

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5
Q

Nervous system associated with Cranial & Spinal Nerves that go from central nervous system to the periphery of the body

A

Peripheral Nervous System (PNS)

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6
Q

What are the two divisions of the Peripheral Nervous System (PNS) ?

A

Sensory (Afferent)

and

Motor (Efferent)

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7
Q

The motor division of the Peripheral nervous system is associated with what two nervous systems?

A

Autonomic Nervous System (ANS)

and

Somatic Nervous System

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8
Q

The autonomic nervous system has what two divisions?

A

sympathetic and parasympatheic divison

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9
Q

What central nervous system fibers run to the CNS?

A

Visceral and somatic senosry fibers

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10
Q

What central nervous system fibers run from the CNS?

A

Somatic nervous system motor fibers

Sympathetic and parasympathetic motor fibers

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11
Q

voluntary movment of muscles is a part of what nervous system?

A

Somatic Nervous System

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12
Q

Nervous system associated with involuntary control: such as heart and smooth muscles

A

Autonomic Nervous System

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13
Q

This part of the Autonomic Nervous System is stimulated during emergency situations.

A

sympathetic division

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14
Q

This part of the Autonomic Nervous System functions durning times of rest.

A

parasympathetic division

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15
Q

These aid neurons and do not carry nerve impulses

A

neuroglia

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16
Q

Star shaped neuroglia that stabilizes blood vesssels. Also, they respond to brain injury by filling in spaces.

A

astrocytes

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17
Q

What are the two neurogili of the CNS

A

astrocytes

and

microglia

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18
Q

These neuroglia are protective small white blood cells that phagocytize

A

microglia

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19
Q

ciliated cells found in the CNS that line ventricular (fluid) cavities of brain and spinal cord

A

ependymal cells

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20
Q

flat cells that form insulating myelin sheaths around axons in CNS

A

oligodendrocytes

21
Q

The sensory (afferent) division has what two types of sensory nerve fibers?

A

Somatic sensory nerve fibers and

Visceral sensory nerve fibers

22
Q

Sensory neurons associated with: pain, touch, presure, vibration, tempature, hearing, equlibrium, and vision

A

somatic sensory neurons

23
Q

Sensory neurons associated with: stretch, pain, temperature, chemical changes, viscera, nausea, hunger, taste, and smell

A

Visceral sensory neurons

24
Q

flat cells surround neuron cell bodies in ganglia;

control chemical environment around neurons

A

Satellite cells

25
Q

form insulating myelin sheaths around larger nerve fibers in PNS

A

Schwann cells

26
Q

The somatic nervous system differs from the autonomic ns because the somatic ns:

A

is under voluntary control

27
Q

excitable cells that transmit impulses

A

Neurons (nerve cells)

28
Q

These cells have extreme longevity, cells can last a lifetime

29
Q

These cells are amitotic no centrioles, cannot divide or be replaced if injured

30
Q

Cells that have a high metabolic rate and high demand for O2 and glucose are called?

31
Q

What is the impulse direction for neurons?

A

Dendrite, Cell Body, Axon

DCBA

32
Q

The cell body of a neuron is known as?

33
Q

Rough endoplasmic reticulum responsible for protein production & transport

A

Nissl bodies

34
Q

receptive, conduct impulses toward nerve cell body

35
Q

These extend from the cell body of all neurons and are generally know as?

A

neuron processes

36
Q

receptive, conduct impulses toward nerve cell body

37
Q

conducts impulses away from nerve cell body

38
Q

This part of the axon begins impulse conduction

A

axon hillock

39
Q

Another name for teleodendria is?

A

Terminal Branches

40
Q

What part of the axon release neurotransmitters?

A

axonal terminals

41
Q

protect & insulate axons; increase velocity (speed) of impulses along axons

A

Myelin Sheaths

42
Q

Neurogilia of CNS that can form a myelin sheath over several axons

A

oligodendrocytes

43
Q

gaps along myelin sheath

A

nodes of Ranvier

44
Q

impulse jumps from node to node, faster conduction; polarity change at node only

A

saltatory conduction

45
Q

myelinated axons in CNS are called?

A

white matter

46
Q

unmyelinated axons in CNS are called?

A

gray matter

47
Q

collection of nerve cell bodies in CNS

48
Q

collection of nerve cell bodies in PNS

BIO 201 (12 decks)

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