Psyc Structure of Brain

Corpus Callosum

allows one half of brain to work with opposite side of the body

Brain Stem

top of spinal cord, the most primitive part of the brain, controls basic survival functions like breathing, heartrate, and sleep

Mid Brain

connects brain and spinal cord together

Medulla

first swell of the brain stem and controls life functions

Pons

above medulla, controls dreaming, sleeping, and arousal and left and right body coordination

Reticular formation

behind medulla and is the nerves that run form hindbrain and midbrain to the cerebral cortex, controls attention and arousal

Cerebellum

part of hindbrain and controls balance and maintains muscle coordination

Hippocampus

LS, near base of brain and processes memories, ability to learn, and compare sensory info to expectations

Amygdala

LS, emotional processing center of the brain, mood, links perception and thoughts with emotional meaning; helps to understand if a stim is threatening or rewarding

basal Ganglia

LS, processes movement related info, motor control, communicates with brain stem

Thalamus

LS, interprets sensory and motor info, acts as center for pain perception, relays pain and motor info to cortex

Hypothalamus

LS, master gland, connects nervous system to the endocrine system, controls the pituitary gland, regulates fear, sex drive, and aggression

Cingulate Gyrus

Primary relater for limbic system to cortex

Frontal lobe

Front p[art of brain and develops last, exec functions, decision making, motor performance, planning, problem solving, lang comp

Parietal

sensory skills, spatial processing, nav, skin senses

Occcipital

visual processing

Temporal

Auditory processing, retention for short and long term memories, naming

CNS

brain and spinal cord

Peripheral nervous System

takes and sends info from cns and transfers to rest of body

Automatic nervous system

part of Peripheral nervous system, automatic things our body does

• parasympathetic division (eat, sleep, rest, calm stuff)

• Sympathetic division (fight or flight, not calm)

Somatic Nervous system

part of the Peripheral nervous system, what carries info from our 5 senses and controls movement of skeletal muscles, voluntary things our body does

• Sensory system (afferent neurons, takes info from senses and brings to cns

• Motor system (efferent neurons, takes messages from cns and brings it to muscles and glands)