brain part 1

Question 1

Motor neuron

Answer 1

Causes things to move (out)

Question 2

Dendrite

Answer 2

Receive messages from other cells

Question 3

Action potential

Answer 3

The firing of a neuron (all or nothing)

Question 4

Ions

Answer 4

An atom or group of atoms in which a number of electrons is different from the number of protons

Question 5

Serotonin

Answer 5

A neurotransmitter associated with mood
-Stops reuptake

Question 6

Reuptake

Answer 6

When a neurotransmitter gets reabsorbed back to a neuron

Question 7

Somatic nervous system

Answer 7

Part of the nervous system that controls voluntary movement

Question 8

autonomic nervous system

Answer 8

automatic/involuntary movements
-ex. heart beat or breathing 

Question 9

sympathetic

Answer 9

Adrenaline/fight or flight also being nervous

Question 10

Parasympathetic nervous system

Answer 10

When you’re calm

Question 11

Pituitary gland

Answer 11

Send hormones to other glands

Question 12

Endocrine system

Answer 12

governs behavior (Takes a longer time)

Question 13

Pancreas

Answer 13

Regulates the level of Sugar in blood

Question 14

Thyroid

Answer 14

Controls metabolism 

Question 15

Metabolism

Answer 15

How efficiently you use energy

Question 16

Parathyroid

Answer 16

Controls calcium and body

Question 17

Gonads

Answer 17

testes/ovaries
-Release testosterone and estrogen

Question 18

Adrenal glands

Answer 18

release epinephrine, cortisol, norepinephrine
-Triggers fight or flight

Question 19

Interneurons

Answer 19

Connect motor and sensory neuron

Question 20

PET

Answer 20

when you drink A solution that gets into your brain so you can see which parts of your brain are active (lights up on scan)

Question 21

EEG

Answer 21

measures brain activity in waves
-Think sleep study

Question 22

MRI

Answer 22

shows a clear picture of the brain in 3-D

Question 23

CAT

Answer 23

X-ray photo

Question 24

FMRI

Answer 24

Shows brain overtime

Question 25

Sensory

Answer 25

Feel/aware of it (in)

Question 26

Glial cells

Answer 26

housekeepers and make sure neurons are working well

Question 27

Refractory period

Answer 27

When a neuron is recharging before it fires again

Question 28

Antagonist

Answer 28

Drugs that go in and block the real Neuro transmitters from doing their function

Question 29

Agonist

Answer 29

binds to Nuro receptor site and makes the neuron think it is the neurotransmitter -ex. Caffeine mimics the wake up neurotransmitter

Question 30

Antidepressant

Answer 30

Stop reuptake of serotonin

Question 31

Myelin sheath

Answer 31

Speeds conduction of neuron

Question 32

Absolute threshold

Answer 32

you have to have enough neurotransmitters to get action potential

Question 33

Endocrine system

Answer 33

hormones

Question 34

Acetylcholine

Answer 34

memory and motor movement neurotransmitter

Question 35

Endorphins

Answer 35

pain relieving neurotransmitter -Contributes to runners high

Question 36

Dopamine

Answer 36

a feel good Neurotransmitter

Question 37

Glutamate

Answer 37

A memory neurotransmitter

Question 38

Norepinephrine

Answer 38

helps control alertness and arousal (Neuro transmitter) also in adrenal glands

Question 39

GABA

Answer 39

A neurotransmitter that calms you down for sleep (Inhibiting)

Question 40

Axon

Answer 40

Passes messages away from the cell body to other neurons, muscles, or glands

Question 41

Terminal branches of axon

Answer 41

Form junctions with other cells

Question 42

Myelin sheath

Answer 42

Covers the axon of some neurons and health speed neural impulses

Question 43

Neural impulse

Answer 43

action potential/electrical signal traveling down the axon

Question 44

Cell body

Answer 44

The neurons life support center

Question 45

Synaptic gap

Answer 45

The gap between the receptor sites on receiving neurons and the axon terminal

Question 46

Soma

Answer 46

Cell body

Question 47

Neurons are made up of...

Answer 47

Sodium and potassium

Question 48

Depolarization

Answer 48

During refractory period when charge leaves the neuron and becomes positive

Question 49

Polarization

Answer 49

When charge comes in and becomes negative

Question 50

reflex

Answer 50

info coming from your sensory neurons send a message to the motor neurons before it goes to your brain -ex. gets hit in the knee

Question 51

central nervous system

Answer 51

brain and spinal cord

Question 52

peripheral nervous system

Answer 52

everything other than brain and spinal chord