Chapter 3

Question 0

Neuron

Answer 0

Brain cell for transmitting signals

There are 100 billion in the brain

Question 1

What are glial cells

Answer 1

Support cells in the brain

There are about 900 billion in the brain

Question 2

What two regions can regrow neurons

Answer 2

Hippocampus and olfactory bulb

Question 3

How does Francis crick feel about the mind-body question?

Answer 3

You are just a hunch of cells

Question 4

How does roger sperry feel about the mind body question

Answer 4

Two sides coin one side does scientifically functions and the other is emotions and thinking etc

Question 5

Cell body

Answer 5

A relatively large egg shaped structures that provides fuel

Question 6

Dendrites

Answer 6

Branchlike extensions

Question 7

Axon

Answer 7

A single threadlike structure that extends from and carries signals away from the cell body to neighboring neurons, muscles, and organs

Question 8

Myelin sheath

Answer 8

Looks like separate tubelike segments, prevents interference from electrical signals generates in adjacent axons

Question 9

End bulbs

Answer 9

Located at the extreme end if the axons branches, stores neurotransmitter

Question 10

Synapse

Answer 10

Small space between and end bulb and its adjacent body organ

Question 11

Peripheral nervous system

Answer 11

Nerves that are located throughout the body

Question 12

Central nervous system

Answer 12

Spinal cord and brain nerves

Question 13

Multiple sclerosis

Answer 13

Disease that attacks the myelin sheaths

Question 14

Is sodium positive or negative

Answer 14

Positive

Question 15

Potassium-positive or negative

Answer 15

Positive

Question 16

Protein-positive or negative

Answer 16

Negative

Question 17

Ions

Answer 17

Chemical particles with eclectic charges

Question 18

Nerve impulse

Answer 18

Refers to the series of separate action potentials that take place segment by segment as they move down the length of an axon

Question 19

All or none law

Answer 19

Says that I’d an actin potential starts at the beginning of an axon the action potential will continue at the same speed to the very end of the axon

Question 20

Resting state

Answer 20

Means that the axon has a charge or potential

Question 21

Sodium pump

Answer 21

A transport process that picks up sodium ions that enter the axons chemical gates and returns them back outside.
Responsible for keeping axon charged

Question 22

In resting state is the cell positive or negative

Answer 22

Negative

Question 23

Action potential

Answer 23

A tiny electric current that is generated when the positive sodium ions rush inside the cell

Question 24

Transmitter

Answer 24

A chemical messenger that carries information between nerves

Question 25

Excitatory transmitters

Answer 25

Open chemical locks

Question 26

Inhibitory transmitters

Answer 26

Block chemical locks

Question 27

Alcohol acts like

Answer 27

GABA

Question 28

Endorphins

Answer 28

- painkiller | - similar to morphine

Question 29

Anandamide

Answer 29

- similar to THC aka marijuana | - helps regulate emotions

Question 30

Nitric oxcide

Answer 30

Aggression

Question 31

Reflex

Answer 31

An unlearned involuntary reaction to a stimulous

Question 32

Afferent neurons

Answer 32

Sensory

Question 33

Efferent neurons

Answer 33

Motor

Question 34

Inter neuron

Answer 34

Makes connections between neurons

Question 35

Reuptake

Answer 35

A process through which some neurotransmitters such as dopamine are removed from the synapse by being transported back into the end bulbs

Question 36

Cocaine affects the reuptake of

Answer 36

Dopamine

Question 37

Curare

Answer 37

Causes Paralysis because it blocks the neurotransmitter acetylcholine

Question 38

Mescaline

Answer 38

Drug that causes hallucinations | Similar to norepinephrine

Question 39

Autonomic

Answer 39

Involuntary muscles

Question 40

Somatic

Answer 40

Voluntary muscles

Question 41

Sympathetic

Answer 41

Expends energy Prepares for emergencies & strenuous activities Speeds up the heart Increase blood pressure

Question 42

Parasympathetic

Answer 42

Conserves energy | Helps body recover after activity

Question 43

Chemical gates

Answer 43

Aka nodes of ranvier | Allow for the exchange of ions

Question 44

GABA

Answer 44

A major inhibitory neurotransmitter | Under supply linked to seizures tremors and insomnia