Tuba

Question 1

When the choroid fissure does not close, which congenital eye abnormality occurs?

a) Colobomal
b) Congenital cataract
c) Congenital aniridi
d) Congenital aphakia
e) Anophtalmia

Answer 1

a) Colobomal

Question 2

Which of the following is true about cornea histology?

a) The canal of Schlemm drains aqueous humor from the posterior chamber of the eye into the venous system
b) The corneal epithelium is composed of pseudostratified columnar epithelium
c) Bowman’s membrane is a thick basement membrane of the corneal epithelium
d) The microvilli found on the corneal epithelium play role in the nutrition of the cornea
e) Bruch’s membrane is found between the corneal stroma and corneal endothelium

Answer 2

d) The microvilli found on the corneal epithelium play role in the nutrition of the cornea

Question 3

Outer segments of rod and cone cells are found in which of the following layers of the retina?

a) Rod and cone layer
b) Inner nuclear layer

C) Outer nuclear layer

d) Inner plexiform layer
e) Outer plexiform layer

Answer 3

a) Rod and cone layer

Question 4

Which of the following cells are macrophages found in the epidermis?

a) Corneocyte
b) Langerhans cell
c) Merkel cell
d) Keratinocyte
e) Melanocyte

Answer 4

b) Langerhans cell

Question 5

Which of the following structures found in the skin plays an essential role in thermoregulation?

a) Eccrine sweat glands
b) Pacinian corpuscles
c) Meissner corpuscles
d) Sebaceous glands
e) Apocrine sweat glands

Answer 5

a) Eccrine sweat glands

Question 6

Where are the cells that give color to hair and skin originated from?

a) Mesoderm
b) Bone marrow
c) Endoderm
d) Neural crest
e) Surface ectoderm

Answer 6

d) Neural crest

Question 7

• Which of the following eye structures is different from the others in terms of where it derived from?
  a) sclera
  b) corneal stroma
  c) choroid
  d) lens
  e) corpus vitreum

Answer 7

d) lens

Question 8

Which of the following structures is located in the choroid?

A) Bruch’s membrane
B) Inner plexiform layer
C) Descemet’s membrane
D) Pupillary zone
E) Ganglion cell layer

Answer 8

A) Bruch’s membrane

Question 9

Where is the aqueous humour secreted?

A) Non-pigmented ciliary epithelium
B) Pigmented ciliary epithelium
C) Retina pigment epithelium
D) Lacrimal gland
E) Cornael endothelium

Answer 9

A) Non-pigmented ciliary epithelium

Question 10

Which structure in the eye develops from neuroectoderm ?

A) Choroid
B) Retina
C) Cornea
D) Sclera
E) Lens

Answer 10

B) Retina

Question 11

Which of the following is congenital aphakia ?

A) Absence of the eye
B) Fusion of the eyes
C) Absence of the lens
D) Absence of iris
E) Single eye

Answer 11

C) Absence of the lens

Question 12

Which of the following cells is not found in the epidermis?

A) Keratinocytes
B) Melanocytes
C) Larngerhans cells
D) Merkel cells
E) Mast cells

Answer 12

E) Mast cells

Question 13

In which of layer of the skin Meissner corpuscles are found?

A) Epidermis
B) Papillary layer of dermis
C) Reticular layer of dermis
D) Hypodermis
E) Stratum corneum

Answer 13

B) Papillary layer of dermis

Question 14

Where are the keratinocytes in the skin derived from ?

A) Surface ectoderm
B) Neuroectoderm
C) Mesenchyme
D) Neural crest
E) Bone marrow

Answer 14

A) Surface ectoderm

Question 15

Which of the following cells is antigen presenting cells in the epidermis?

a) Langerhans cells
b) Mast cells

C) Merkel cells

d) Melanocytes
e) Keratinocytes

Answer 15

a) Langerhans cells

Question 16

Where does the aqueous humor flow from the anterior chamber of the eye into the venous system?

a) Schlemm’s canal
b) Fovea centralis

C) Vitreous body

d) Ora serrata
e) Optic disc

Answer 16

a) Schlemm’s canal

Question 17

Where do the melanocytes (melanin-producing cells) in the epidermis develop from?

a) Intermediate Mesoderm
b) Neural Crest
c) Paraxial Mesoderm
d) Ectoderm
e) Lateral Plate Mesoderm

Answer 17

b) Neural Crest

Question 18

Which of the following is congenital aniridia?

A) absence of the eye

B) fusion of the eyes

C) absence of the lens

D) absence of the iris

E) single eye

Answer 18

A) absence of the eye

Question 19

Which of the following cells is responsible for taking light touch sense in the epidermis?

A) Keratinocytes

B) Melanocytes

C) Langerhans cells

D) Merkel cells

E) Mast cells

Answer 19

D) Merkel cells

Question 20

Melanosit hücrelerinin göç etmemesi sonucu meydana gelen deri hastalığı hangisidir?

Answer 20

piebaldism

Question 21

Aşağıdakilerden hangisi doğrudur?

. keratin is found as tonofibrils in the stratum spinosum

Answer 21

. keratin is found as tonofibrils in the stratum spinosum

Question 22

hangi hücreler stratum corneumdaki ölü hücreler?

Answer 22

corneositler

Question 23

sphincter pupil muscle ve dilator pupil muscle nerden gelişir?

Answer 23

optic cup ectoderm

Question 24

rod ve cone hücrelerinin gövdeleri nerede bulunur?

Answer 24

outer nuclear layer

Question 25

anne henüz gebeyken rubella hastalığı geçirirse çocukta hangi hastalık meydana gelir?

Answer 25

congenital cataract

Question 26

göz ile ilgili verilen öncüllerden hangisi/hangileri doğrudur?

l-iris adjusts the amount of light entering the eye

Il-The hyaloid artery feeds the lens in the embryonic period

III-The fibers in the optic nerve fiber layer of the retina are unmylinated

V-The non-pigmented ciliary layer layer secretes the aqueous humor.

Answer 26

l-iris adjusts the amount of light entering the eye

Il-The hyaloid artery feeds the lens in the embryonic period

III-The fibers in the optic nerve fiber layer of the retina are unmylinated

V-The non-pigmented ciliary layer layer secretes the aqueous humor.

Question 27

Mitotic activity in the epidermis takes place principally in the stratum ….

A) Basale

B) Granulosum

C) Lucidum

D) Spinosum

E) Non of above

Answer 27

A) Basale