Nervous System

Question 1

Central Nervous System

Answer 1

CNS composed of brain and spinal cord

Question 2

Peripheral Nervous System

Answer 2

PNS consists of all the nerves that transmit the CNS to all the parts of the body.

Question 3

Functions of Nervous System

Answer 3

Sensory, Integrative, and Motor

Question 4

Sensory Function

Answer 4

Sensory receptors at the ends of peripheral nerves

Question 5

Integrative function

Answer 5

They create sensations, adding memory, or helping to produce thoughts

Question 6

Motor Function

Answer 6

Impulses travel from the CNS to responsive effectors.

Question 7

Dendrites

Answer 7

“Input channels”

Question 8

Axon

Answer 8

“Output channels”

Question 9

Cell body

Answer 9

Contains the cytoplasmic organelles.

Question 10

Nissl Bodies

Answer 10

Location for ribosomes to attach for the synthesis of vital protein molecules.

Question 11

Schwann cells

Answer 11

tightly wound around the axon “insulation”

Question 12

Myelin

Answer 12

Is a lipid protein

Question 13

Myelin Sheath

Answer 13

located outside the axon

Question 14

Neurilemmal Sheath

Answer 14

surrounds the myelin “more insulation”

Question 15

Notes of Ranvier

Answer 15

Gaps of exposed axon

Question 16

Synaptic Knobs

Answer 16

release neurotransmitters

Question 17

Neuroglial Cells

Answer 17

Functions to fill spaces, support neurons, hold nerve tissue together, produce myelin.

Question 18

Astrocytes

Answer 18

Provide structural support and in removing cellular debris

Question 19

Oligodendrocytes

Answer 19

Function in the formation of myelin within the brain and spinal cord.

Question 20

Microglin

Answer 20

CNS, support neurons and are able to phagocytize bacterial cells and cellular debris

Question 21

Ependyma

Answer 21

Covers specialized brain parts and forms the linings that enclose spaces within the brain.