CH 11

Question 1

These cells conduct impulses within the nervous system

Answer 1

neurons

Question 2

master control and communication system of body

Answer 2

Nervous system

Question 3

What are the three parts of the nervous system?

Answer 3

Sensory Input

Integration

Motor output

Question 4

Nervous system that deals with the brain and spinal cord

Answer 4

Central Nervous System (CNS)

Question 5

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

Answer 5

Peripheral Nervous System (PNS)

Question 6

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

Answer 6

Sensory (Afferent)

and

Motor (Efferent)

Question 7

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

Answer 7

Autonomic Nervous System (ANS)

and

Somatic Nervous System

Question 8

The autonomic nervous system has what two divisions?

Answer 8

sympathetic and parasympatheic divison

Question 9

What central nervous system fibers run to the CNS?

Answer 9

Visceral and somatic senosry fibers

Question 10

What central nervous system fibers run from the CNS?

Answer 10

Somatic nervous system motor fibers

Sympathetic and parasympathetic motor fibers

Question 11

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

Answer 11

Somatic Nervous System

Question 12

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

Answer 12

Autonomic Nervous System

Question 13

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

Answer 13

sympathetic division

Question 14

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

Answer 14

parasympathetic division

Question 15

These aid neurons and do not carry nerve impulses

Answer 15

neuroglia

Question 16

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

Answer 16

astrocytes

Question 17

What are the two neurogili of the CNS

Answer 17

astrocytes

and

microglia

Question 18

These neuroglia are protective small white blood cells that phagocytize

Answer 18

microglia

Question 19

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

Answer 19

ependymal cells

Question 20

flat cells that form insulating myelin sheaths around axons in CNS

Answer 20

oligodendrocytes

Question 21

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

Answer 21

Somatic sensory nerve fibers and

Visceral sensory nerve fibers

Question 22

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

Answer 22

somatic sensory neurons

Question 23

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

Answer 23

Visceral sensory neurons

Question 24

flat cells surround neuron cell bodies in ganglia;

control chemical environment around neurons

Answer 24

Satellite cells

Question 25

form insulating myelin sheaths around larger nerve fibers in PNS

Answer 25

Schwann cells

Question 26

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

Answer 26

is under voluntary control

Question 27

excitable cells that transmit impulses

Answer 27

Neurons (nerve cells)

Question 28

These cells have extreme longevity, cells can last a lifetime

Answer 28

neurons

Question 29

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

Answer 29

neurons

Question 30

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

Answer 30

neurons

Question 31

What is the impulse direction for neurons?

Answer 31

Dendrite, Cell Body, Axon DCBA

Question 32

The cell body of a neuron is known as?

Answer 32

Soma

Question 33

Rough endoplasmic reticulum responsible for protein production & transport

Answer 33

Nissl bodies

Question 34

receptive, conduct impulses toward nerve cell body

Answer 34

dendrites

Question 35

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

Answer 35

neuron processes

Question 36

receptive, conduct impulses toward nerve cell body

Answer 36

dendrites

Question 37

conducts impulses away from nerve cell body

Answer 37

axon

Question 38

This part of the axon begins impulse conduction

Answer 38

axon hillock

Question 39

Another name for teleodendria is?

Answer 39

Terminal Branches

Question 40

What part of the axon release neurotransmitters?

Answer 40

axonal terminals

Question 41

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

Answer 41

Myelin Sheaths

Question 42

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

Answer 42

oligodendrocytes

Question 43

gaps along myelin sheath

Answer 43

nodes of Ranvier

Question 44

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

Answer 44

saltatory conduction

Question 45

myelinated axons in CNS are called?

Answer 45

white matter

Question 46

unmyelinated axons in CNS are called?

Answer 46

gray matter

Question 47

collection of nerve cell bodies in CNS

Answer 47

Nucleus

Question 48

collection of nerve cell bodies in PNS

Answer 48

Ganglia