eye and ear

Question 1

Which of following cells send sight signals?
• amakrine
• bipolar
• cones
• ganglion cells
• horizontal cells
• Muller cells
• rods

Answer 1

bipolar, cones, rods, ganglion cells

other Q asks ‘transmits visual signals’ and its the same answers

Question 2

Which structure forms border between anterior and posterior compartment of eye?
• corpus ciliare
• cornea
• iris
• lens
• ora serrata
• vitreous
• zonula ..

Answer 2

iris

Question 3

conjuctiva bulbi
• tunica fibrosa
• tunica vasculosa
• tunica nervosa
• none of the above

Answer 3

none

Question 4

lamina choriocapillaris
• tunica fibrosa
• tunica vasculosa
• tunica nervosa
• none of the above

Answer 4

vasculosa

Question 5

iris
• tunica fibrosa
• tunica vasculosa
• tunica nervosa
• none of the above

Answer 5

vasculosa and fibrosa

Question 6

part of tunica fibrosa
• Bowman membrane
• descemets membrane
• lamina vitrea
• none of the above

Answer 6

both mmbs (they’re part of cornea)

Question 7

anterior epithelium of cornea
• Bowman membrane
• descemets membrane
• lamina vitrea
• none of the above

Answer 7

none. (simple sq epi)

Question 8

contain iodopsin
• rods
• cones
• none of the above

Answer 8

cones

Question 9

responsible for vision in dim light (night vision)
• rods
• cones
• none of the above

Answer 9

rods

Question 10

responsible for sharp vision
• rods
• cones
• none of the above

Answer 10

cones

Question 11

contain modified cilia
• rods
• cones
• none of the above

Answer 11

both

Question 12

Which of the following produces the aqueous humor of the eye?
• Cells of the ciliary portion of the non-photosensitive retina
• Choriocapillary layer
• Corneal endothelium
• Endolymphatic sac
• Schlemm’s canal
• Stria vascularis
• Substantia propria

Answer 12

+——

Question 13

Following statements concerning ciliary body are true except:
• Covered with non-photosensitive portion of retina
• Non-photosensitive portion of retina contains cones
• Composed of dense connective tissue
• Contains ciliary muscle

Answer 13

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true: contains cilliary muscle and covered with non-photo sensitive retina

Question 14

Which of the following is true of the fovea centralis of the retina?
• Is also known as the blind spot
• Is the region in which the axons of ganglion cells converge and leave the eye as the optic nerve
• Is the region in which retinal veins converge before leaving the eye
• Is the thinest part of the neural retina
• Does not contain photoreceptive cells
• Contain numerous cones

Answer 14

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Question 15

Following statements concerning cornea are true except:
• Anterior and posterior epithelia are stratified squamous
• Its stroma is acellular
• Collagen fibrils are contained in its stroma
• Posterior epithelium is simple squamous
• Anterior epithelium rests on Descemet’s membrane

Answer 15

FFVVF
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(faux/wrong F - vrai V/true)

Question 16

Which of the following cells span the entire width of the neural retina?
• Amacrine cells
• Bipolar cells
• Cone cells
• Ganglion cells
• Horizontal cells
• Muller cells
• Rod cells

Answer 16

muller cells (they are glial cells)

Question 17

Which of the following structures is the most anterior extension of the eye’s tunica vasculosa?
• Anterior epithelium
• Bruch’s membrane
• Ciliary body
• Cornes
• Iris
• Lens
• Pigmented epithelium

Answer 17

iris

Question 18

Which of the following is true of the pigmented epithelium of the retina?
• Rests on Descemet’s membrane
• Contributes anteriorly to the lens
• Derives from the outer wall of the embryonic optic cup
• Phagocytoses portions of cytoplasm (shed) by photoreceptors
• Is classified as a photoreceptor

Answer 18

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Question 19

Which of the following is true of tears?
• Are secreted by meibomiam glands
• Contain lysozyme
• Are secreted by the glands of Moll
• Are secreted by the glands of Zeiss
• Enter the eye through the lacrimal puncta
• Are secreted by the conjunctiva

Answer 19

contain lysozyme

Question 20

Lacks an outer segment
• Rod cells
• Cone cells
• Neither

Answer 20

niether

wtf is this Q

Question 21

Contain narrow portion of cytoplasm rich in neurofilaments
• Rod cells
• Cone cells
• Neither

Answer 21

both do

Question 22

Most abundant in retina
• Rod cells
• Cone cells
• Neither

Answer 22

rods

Question 23

Contains rhodopsin
• Rod cells
• Cone cells
• Neither

Answer 23

rods

Question 24

Layer of choroid
• Bowman's membrane
• Descemet's membrane
• Lamina vitrea
• None of the above

Answer 24

lamina vitrea (tiiny part of it)

Question 25

``` Contains elastic fibers • Bowman's membrane • Descemet's membrane • Lamina vitrea • None of the above ```

Answer 25

lamina vitrea

Question 26

``` lens • Tunica fibrosa • Tunica vasculosa • Tunica nervosa • None of the above ```

Answer 26

none ...neither is vitrous body

Question 27

``` Ciliary body • Tunica fibrosa • Tunica vasculosa • Tunica nervosa • None of the above ```

Answer 27

vasculosa | AND NERVOSA

Question 28

``` True concerning taste buds • over much of tongue surface • ... • abundant on circumvallate papillae • ... • equipped with microvilli ```

Answer 28

all correct

Question 29

Which of the following statements concerning taste receptors are true? • are equipped with cilia • they phagocytose neuromediators in response to chemical stimuli • in the vicinity of the basal portions of cells are situated terminal endings of afferent neurons • using common staining methods they appear light • basal cells develop from them • are primary receptor cells • are secondary receptor cells

Answer 29

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Question 30

About propriocepters in ear: - have Columnar supportive cells between sensory cells - Glycoproteins later covers macula - 3 maculae 2 cristae ampularis - 2 maculae 3 cristae ampularis

Answer 30

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Question 31

Most cells in contact with retina:

Answer 31

* Amacrine cells * Bipolar cells * Cone cells * Ganglion cells * Horizontal cells * Muller cells * Rod cells

Question 32

Receptor cells of cristae ampullares are: Select one or more: a. chemoreceptors b. hair cells, they are equipped with stereocilia and one kinocilium c. mechanoreceptors d. proprioceptors

Answer 32

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Question 33

``` Hair cells of organ of Corti: Select one or more: a. hairs of these cells are kinocilia b. are secondary receptor cells c. afferent and efferent nerve endings surround the outer and inner hair cells d. are primary receptor cells ```

Answer 33

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