CNS

simple tube, neural tube

elevated ridges of tissue

shallow grooves separating the gyri

Frontal, Parietal, Occipital, Temporal

primary motor, move our body (complex memories)

in frontal lobe; controls ability to speak

somatic sensory, recognize pain, coldness, light touch

visual, seeing

audio (deep inside is smell and memory)(complex memories)

inside the brain

outside brain (unmyelinated)

connecting the two hemispheres

(called Interbrain) contains thalamus, hypothalamus, epithalamus

relay station, sensory impulses, pleasant or unpleasant

autonomic nervous system, body temp, water balance, metabolism, thirst, appetite, sex, pain

forms the cerebrospinal fluid

(3 inches) contains midbrain, pons, medulla. helps breathing and blood pressure

precise timing and helps balance and equilibrium

3 membranes protecting CNS (dura matter=outermost layer)

middle layer, weblike extensions, attach it to Pia mater

clings tightly to surface of brain and spinal cord

made from blood plasma, continually moving

made of least permeable capillaries, protects brain, only water, glucose, and important amino acids get though wall

slight brain injury, no permanent damage

result of marked tissue destruction

bleeding from vessels

swelling of brain

damage to Broca's area, can't speak

17 inches, foramen magnum to first or second lumbar vertebra

looks like butterfly, surrounds central canal

myelinated fiber tracts, brain to cord