Psy chap 6

the brain and spinal cord

it runs up and down the lengh of the back and transmit most messages between the body and brain

nerves branching from the spinal cord into the body

long thin cells of nerve tissue

receive impulses or messages

carries the impulses or mesasges

insulates and protects the axon

small fibers that branch out at the end of the axon

the gap between nerve cells

chemicals released by neurons

inhabits pain

result in depression

sensory neurons

motor neurons

controls voluntary movement

controls internal biological functions

involved in the basic process of life

controls posture ,balance , and voluntary movement

controls breathing and heart rate

bridge between the spinal cord and the brain

sensory the information and relays it upward

alerts the rest of the brain to incoming signals and is involved in the sleep and wake system

covers the brains control core , responsible for sensory and motor control and the processing of thinkinglanguage

relay station for all information that travels to and from cortex

controls hunger, thirst and sexual behavior

outer layer

inner layer

regulate emotions and motivations