Psych I Chapter 2

Front 1

How many neurons does the brain have?

Back 1

100 neurons

Front 2

Dendrite

Back 2

receives messages from other cells

Front 3

Axon

Back 3

passes messages away from the cell body to other neurons

Front 4

Myelin sheath

Back 4

covers the axon of some neurons and helps speed neural impulses

Front 5

Glia

Back 5

cells that make up myelin sheath and give neurons instructions for growth

Front 6

Vesicles

Back 6

container for neurotransmitters

Front 7

Neurotransmitters

Back 7

molecules that carry info from one neuron to another

Front 8

How many neurotransmitters have been discovered?

Back 8

more than 50 have been discovered

Front 9

Re-uptake

Back 9

neurotransmitters are absorbed back into axon

Front 10

Nerves

Back 10

neurons that are bundled together

Front 11

Limbic system

Back 11

survival system motivation

Front 12

Hypothalamus

Back 12

regulates endocrine system, triggers parasympathetic and sympathetic system, regulates pleasure seeking

Front 13

Pituitary gland

Back 13

regulates growth

Front 14

Pineal gland

Back 14

regulates sleep cycle

Front 15

Amygdala

Back 15

responds to threats

Front 16

Thalamus

Back 16

relays signals from the senses to the other parts of the brain

Front 17

Hippocampus

Back 17

save function, generates new neurons

Front 18

Occipital lobe

Back 18

involved with vision

Front 19

Temporal lobe

Back 19

involved with bearing and language

Front 20

Parietal lobe

Back 20

involved with touch, spatial relations, and memory

Front 21

Frontal lobe

Back 21

controls judgment, decision making, planning ahead, personality, and voluntary muscles

Front 22

Sensorimotor cortex

Back 22

receives signals from sense of touch

Front 23

Motor cortex

Back 23

sends signals to muscles

Front 24

Broca's area

Back 24

used to speak

Front 25

Wernicke's area

Back 25

understands speech

Front 26

Endocrine system

Back 26

automatic system

Front 27

Glands

Back 27

organs that release hormones

Front 28

Three brain glands

Back 28

1) pineal
2) hypothalamus
3) pituitary

Front 29

Hormones

Back 29

chemicals that send messages

Front 30

Pons

Back 30

bridge between brain stem and the brain

Front 31

Medulla

Back 31

controls respiration, heartbeat, and blood pressure

Front 32

Cerebellum

Back 32

controls balance, coordination of voluntary muscles, timed responses, trained responses, classical conditioning, muscle memory

Front 33

Lesioning

Back 33

brain injury

Front 34

EEG

Back 34

sense brain frequency waves

Front 35

CAT

Back 35

x-rays the brain and detects damage

Front 36

MRI

Back 36

specializes in structure and better resolution

Front 37

MEG

Back 37

promotes most accurate resolution of the timing of nerve cell activity

Front 38

Neuroplasticity

Back 38

the brain can change

Front 39

Neurogenerativity

Back 39

ability for the brain to create new neurons

Front 40

Variablity

Back 40

difference in measurements from person to person

Front 41

Independent variable

Back 41

variable the tester chooses

Front 42

Dependent variable

Back 42

outcome depends on this variable

Front 43

Sources of error

Back 43

variable that you weren't resting for but affected your results anyway