Nervous System

Question 1

What system is composed of the brain and the spinal cord?

Answer 1

Central Nervous System(CNS)

Question 2

What sub-system in the PNS controls voluntary activities such as the activation of skeletal muscles?

Answer 2

Somatic Nervous System

Question 3

What sub-system of the PNS regulates the activity of the heart and smooth muscle? Aka: involuntary nervous system

Answer 3

Autonomic Nervous System

Question 4

The nervous system that interprets incoming information is the …?

Answer 4

Central Nervous system

Question 5

What major subdivision of the nervous system serves as communication lines, linking all parts of the body to the CNS?

Answer 5

Peripheral Nervous System

Question 6

What supports, insulates and protects cells?

Answer 6

Neuroglia

Question 7

What transmits electrical messages from one area of the body to another area?

Answer 7

Neurons

Question 8

What releases neurotransmitters?

Answer 8

Neurons

Question 9

Which is amitotic(doesn’t divide)?

Neurons/Neuroglia

Answer 9

Neurons

Question 10

What is responsible for most brain tumors?

Answer 10

Neuroglia

Question 11

Sensory receptors found in the skin

Answer 11

Cutaneous sense organs

Question 12

Cells that myelinate the fibers of the neurons found in the PNS

Answer 12

Schwann cells

Question 13

Junction point of close contact between neurons

Answer 13

Synapse

Question 14

Neuron that conducts impulses away from the CNS to the muscles and glands

Answer 14

Efferent neuron

Question 15

Neuron that conducts impulses toward the CNS from the body periphery

Answer 15

Afferent neuron

Question 16

What are the three major functions of the nervous system?

Answer 16

Sensory
Integration
Motor

Question 17

What are the five types of Neuroglia cell types?

Answer 17

Astrocytes
Oligodendrocytes
Microglia
Ependymal
Schwann

Question 18

What do astrocytes do?

Answer 18

Secret chemicals vital to maintenance of the blood-brain barrier

Question 19

Which cell type is most abundant?

Answer 19

Multipolar

Question 20

What structure are sensory neurons?

Answer 20

Unipolar

Question 21

What structure are motor neurons?

Answer 21

Multipolar

Question 22

What Neuroglia myelinates axons in the CNS?

Answer 22

Oligodendrocytes

Question 23

What Neuroglia cell performs protective functions in the CNS?

Answer 23

Microglia

Question 24

What do ependymal cells do?

Answer 24

Line the central canal of the spinal cord and the chambers of the brain

Question 25

What ions are necessary for a nerve impulse to occur?

Answer 25

Potassium and sodium

Question 26

The level at which an action potential of nerve impulse is produced is called…

Answer 26

The threshold

Question 27

Neurotransmitter that is involved in emotion/mood and sleep patterns. Inhibitory.

Answer 27

Serotonin

Question 28

Neurotransmitter that stimulates muscle control

Answer 28

Acetylcholine

Question 29

Neurotransmitter that creates a sense of feeling good

Answer 29

Dopamine

Question 30

Neurotransmitter that makes memories and puts body into high alert

Answer 30

Norepinephrine

Question 31

Neurotransmitter that reduces pain

Answer 31

Endorphins

Question 32

What is depolarization?

Answer 32

When the inside of the cell becomes positive

Question 33

When does depolarization happen?

Answer 33

When sodium channel opens and sodium moves inside cell

Question 34

How much energy does an animal at rest use to power active transport?

Answer 34

1/3 of it’s energy