vestibular balance

Question 1

fucntino of the utricle

Answer 1

front and back tilt of head and accerelaratin as you were in a car

Question 2

function of saccule

Answer 2

acceleration as if you were in a lift

Question 3

function of semi-circular canals

Answer 3

detect rotational acceleration

Question 4

where do you find the sensory cells

Answer 4

ampulla

Question 5

if cupola is distorted away from the kinocilium what happened

Answer 5

hyperpolarisation and decreased discharge of APs in the vestibular nerve

Question 6

If cupola is distorted in the direction of the kinocilium what happens

Answer 6

causes depolarisation and increased discharge of APs in the vestibular nerve

Question 7

what plane are the maculae on in the utricle

Answer 7

horizontal plance

Question 8

what plane are the maculae on in the saccule

Answer 8

vertical plane

Question 9

tonic labyrinthine reflexes

Answer 9

keep axis of head in content relationship with rest of body. Use information from maculae and neck proprioceptors

Question 10

dynamic righting reflexes

Answer 10

rapid postural adjustments that are made to stop you falling when you trip.

Question 11

COWS

Answer 11

cold opposite and warm nystagmus to the same side

Question 12

labyrinthitis

Answer 12

infection in vestibular system which interferes with balance

Question 13

vertigo

Answer 13

perception of moving in absence of movement.

Question 14

difference between menieres and labrinythitis

Answer 14

Menieres you get tinnitus in your ears.