nervous system

communication/control

brain/spinal cord

cranial nerves/ spinal nerves

Automatic nervous system

neuron (carries transmission), neuroglia (glue)

allows electrical impulses to transmit quickly and efficiently along the nerve cells

protects neuron and regenerates nerves

sensory, motor, interneurons

exteroceptors, interoceptors, propriocepters

located in CNS, function: interpreters

efferent- function: somatic, visceral

nerve glue

neurons are not connected

neurotransmitter

Encephalon

cerebrum- aware, diencephalon- danger alert, brain stem, cerebellum

largest part, fills upper skull, divided into 2 hemisphere by longitudinal fissure

contralateral control

contains: GYRI- folds, sulci-grooves, divided into 4 lobes- FTOP

thalamus

“master” of master gland

midbrain, pon, madulla oblongata

vital for life or (foramen magnum- location)

coordination/balance

ventricles has 4 rooms

dura (hard), arachnoid (web), pia (small)

blood supply to the brain, carotid arteries/vertebral arteries, combine to form

2 main functions- conducts impulses to and from brain, reflex center

contains CSF

involuntary system, 2 divisions- sympathetic (fight or flight), parasympathetic (relax)

folds

grooves

cerebrum