balance

Question 1

static labrynth

Answer 1

vetibule
evaluates position of head relative to gravity
detects linear acceleration and deceleration

Question 2

dynamic labrynth

Answer 2

semicircular canals
evaluates position of head in 3 dimensional space

Question 3

otoliths
in static

Answer 3

tiny crystal like structures composed of protein and calcium carbonate that move if head is tipped and stimulate hair cells

Question 4

macula
in static

Answer 4

specialized epithelium with sterocilia and one kinoclium (immoveable hair cell) embeded in gelatnous mass weighted by otoliths

Question 5

APs initiated by
in static

Answer 5

gelatenous mass bending in response to gravity and moving hair cells—toward kino is depol away from kino is hyperpol

Question 6

semicircular canals filled with

Answer 6

endolymph

Question 7

dynamic labrythin allows person to detect______

Answer 7

all directions through three plans

Question 8

crista ampularis (of dynamic)

Answer 8

sensory epithelium with gelatonous mass called capula

Question 9

capula

Answer 9

suspended of crista hair cells;
acts as a float–> when endo lymph moves; capula moves and moves hair cells

Question 10

capula movement decets ____movement

Answer 10

rate of movement

Question 11

CNS pathway for balance

Answer 11

vetibular ganglion axons–>vestibular nucelus–>cerebellum (postural muscles), motor nuclei, thalamus–>vestibular cortex