Tuba Flashcards
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
a) Colobomal
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
d) The microvilli found on the corneal epithelium play role in the nutrition of the cornea
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
a) Rod and cone layer
Which of the following cells are macrophages found in the epidermis?
a) Corneocyte
b) Langerhans cell
c) Merkel cell
d) Keratinocyte
e) Melanocyte
b) Langerhans cell
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
a) Eccrine sweat glands
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
d) Neural crest
- 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
d) lens
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
A) Bruch’s membrane
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
A) Non-pigmented ciliary epithelium
Which structure in the eye develops from neuroectoderm ?
A) Choroid B) Retina C) Cornea D) Sclera E) Lens
B) Retina
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
C) Absence of the lens
Which of the following cells is not found in the epidermis?
A) Keratinocytes B) Melanocytes C) Larngerhans cells D) Merkel cells E) Mast cells
E) Mast cells
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
B) Papillary layer of dermis
Where are the keratinocytes in the skin derived from ?
A) Surface ectoderm B) Neuroectoderm C) Mesenchyme D) Neural crest E) Bone marrow
A) Surface ectoderm
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
a) Langerhans cells
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
a) Schlemm’s canal
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
b) Neural Crest
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
A) absence of the eye
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
D) Merkel cells
Melanosit hücrelerinin göç etmemesi sonucu meydana gelen deri hastalığı hangisidir?
piebaldism
Aşağıdakilerden hangisi doğrudur?
. keratin is found as tonofibrils in the stratum spinosum
. keratin is found as tonofibrils in the stratum spinosum
hangi hücreler stratum corneumdaki ölü hücreler?
corneositler
sphincter pupil muscle ve dilator pupil muscle nerden gelişir?
optic cup ectoderm
rod ve cone hücrelerinin gövdeleri nerede bulunur?
outer nuclear layer
anne henüz gebeyken rubella hastalığı geçirirse çocukta hangi hastalık meydana gelir?
congenital cataract
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.
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.
Mitotic activity in the epidermis takes place principally in the stratum ….
A) Basale
B) Granulosum
C) Lucidum
D) Spinosum
E) Non of above
A) Basale
