8.1

Question 1

The most highly organized unit of any form of life

Answer 1

Nervous system

Question 2

Includes the brain and the spinal cord

Answer 2

CNS (central nervous system)

Question 3

The principal organ of the nervous system

Answer 3

Brain

Question 4

The brain communicates through this

Answer 4

Spinal cord

Question 5

The spinal cord and brain are protected by this

Answer 5

Meninges

Question 6

Circulates through the fibers of the arachnoid mater

Answer 6

Cerebrospinal fluid

Question 7

The spinal cord and brain are made up of these

Answer 7

Glial cells neurons

Question 8

The actual nerve cells

Answer 8

Neurons

Question 9

Consists largely of the cell bodies of neurons and is gray because the cell bodies lack the specialized covering known as mylin

Answer 9

Gray matter

Question 10

Composed of glial cells that have the myelin content

Answer 10

White matter

Question 11

Masses of cell bodies

Answer 11

Ganglia

Question 12

Axons from some ganglia join to form this

Answer 12

Plexus

Question 13

A group of cell bodies in the brain or spinal cord

Answer 13

Nerve center

Question 14

Transmit sensory signals

Answer 14

Sensory neurons

Question 15

Neurons that relay signals from the central nervous system to other part of the body

Answer 15

Motor neurons

Question 16

Found only in the central nervous system

Answer 16

Interneurons

Question 17

Prevents viruses and bacteria from entering the brain

Answer 17

Blood brain barrier

Question 18

When invading microorganisms enter the nerve tissue and infect the meniges

Answer 18

Menigitis

Question 19

A serious disease that infects the spinal cord

Answer 19

Poliomyelitis

Question 20

Consists of nerves

Answer 20

Peripheral nervous system

Question 21

Bundles of nerve fibers

Answer 21

Nerves

Question 22

Contain both sensory and motor fibers

Answer 22

Mixed nerves

Question 23

Carry impulses from lactate sound, touch, and pain from other parts of the body just by an accordant brain for analysis

Answer 23

Sensory nerve fibers

Question 24

Carry impulses from the brain in spinal cord to produce action in muscles and organs

Answer 24

Motor nerve fibers

Question 25

The perfume nervous system that chose a heart in other internal organs

Answer 25

Autonomic nervous system

Question 26

Response to your body’s needs during increased activities and emergency

Answer 26

Sympathetic division

Question 27

Access of balance to canaract the actions of the sympathetic division

Answer 27

Parasympathetic division