Psychology

Forebrain

Forebrain

makes us human

Other names for the forebrain

Cerebrum, Cerebrum cortex, “Crown Jewel”

Midbrain

Deep inside the brain contx

Hindbrain

Bottom of brain most animal-like

Hemisphere

half of the brain

Corpus callosum

left and right conx

lobes

section of organs

lobes parts

Frontal, Temporal, Parietal, Occipital

Motor strips

bodily movement

Sensory strips

deals with bodily sensation

Broca’s area

controls sensation

Wernicke’s area

creation of sentences

Thalamus

main relay center

Hypothalamus

controls hunger, thirst, temp, metabolism, sex drive

Limbic system

Emotional center

cerebellum

“little brain” balance and co-ordination

pons

conx midbrain and hindbrain

medulla

heartbeat and breathing

RAS

controls alert, arousal, consciousness

neuron

basic unit of nervous system

axon

carries signals from other neurons

dendrite

receives signals from other neurons

synapse

gap between neurons

vesicles

contain neurontransmitters

Neruotransmitters

chemical messengers that cross synapse and allow neurons to communicate

Acetylcholine

memory and movement

Dopamine

movement and well bring

endorphins

relieve pain

CNS

brain and spinal cord

PNS

all other nerves away from CNS

spinal cord

long cable of nerve fibers

reflex

automatic responds

somatic NS

sensory and motor nerves

autonomic NS

nerves for autonomic control of breathing, heart rate, etc

sympathetic NS

prepares us for emergencies

parasympathetic NS

calms us down after emergency

endocrine system

All glands and their chemical messages

hormones

chemical messages

glands

production hormones

pituitary gland

controls other glands and body growth

thyroid gland

controls metabolism

metabolism

turn food into energy

adrenaline

makes us alert

testosterone

male sex hormones

estrogen

women sex hormones

genes

building blocks of heredity

chromosomes

genes are found there

heredity

Hair, eyes, blood types

nature versus nurture

how much you has come from heredity or own experiences

males

48 oz

female

44 oz

left controls

logic, reason, math, science, speech, writing

right controls

art, music, imagination

right

dextrals

left

sinistrals

how many NTs

100 known

how many synapses

100 trillion

GABA

break pedal

gonads

reproduction

prolactin

produce milk when pregant