Week 12 - Ear and Eye

Question 1

Color to the eye is given by

Answer 1

Iris

Question 2

Oval window is covered by

Answer 2

foot plate of stapes

Question 3

Auditory tube opens into the

Answer 3

middle ear cavity

Question 4

1. membranous labyrinth contains the endolymph
2. Bony labyrinth contains perilymph
3. maculae is the receptor of the semicircular ducts
4. cristae are the receptors of the semicircular ducts

Answer 4

1. true
2. true
3. false
   4 true

Question 5

All are the bones of the middle ear cavity Except
stapes
 stapedius
 incus
malleu

Answer 5

stapedius

Question 6

Iris contains all of the following Except
ciliaris
sphincter pupillae
melanin
dilator papill

Answer 6

ciliaris

Question 7

All are true about cornea Except
transparent
pain sensitive
avascular
opaque

Answer 7

opaque

Question 8

Vestibular complex contains all Except
utricle
 cochlear duct
 saccule
semicircular ducts

Answer 8

cochlear duct

Question 9

All the cranial nerves supply the muscles of the eyeball Except
facial nerve
abducen nerve
V1 branch of the trigeminal nerve
trochlear nerve
oculomotor nerve

Answer 9

facial nerve

Question 10

All the cranial nerves supply the middle ear Except
Select one:
hypoglossal nerve
 mandibular division of the trigeminal
 glossopharyngeal nerve
 facial nerve

Answer 10

hypoglossal nerve

Question 11

Posterior chamber contains
Select one:
plasma
 vitreous humor
 cerebrospinal fluid
aqueous humor

Answer 11

vitreous humor

Question 12

White of the eye is called

Answer 12

sclera

Question 13

ll cranial nerves supply the orbital structures Except
Select one:
trochlear
trigeminal nerve
oculomotor nerve
olfactory nerve
abducen nerve

Answer 13

olfactory

Question 14

All are true for tensor tympani muscle Except
Select one:
attached to the stapes
attached to the malleus
supplied by mandibular branch of the trigeminal nerve
protects the ear from loud sounds
attached to the auditory tube

Answer 14

attached to the stapes

Question 15

The receptor in the inner ear which detects the sound is

Answer 15

organ of corti

Question 16

alance and equilibrium is maintained by the following receptors of the inner ear. Select the most appropriate answer:

cristae and organ of corti
cristae and maculae
cochlea and spiral organ
maculae and spiral organ of corti

Answer 16

cristae and maculae

Question 17

1. sphincter pupillae
   2, ciliary muscle
2. levator palpabral superioris
3. dilator pupillae

Answer 17

1. constriction of pupil
2. changes the shape of the lens
3. elevates the upper eyelid
4. increases the diameter of the pupil.

Question 18

Stapedius muscle is supplied by

Answer 18

facial nerve

Question 19

The artery which supplies the orbital structure is the

Answer 19

ophthalmic artery