HISTOLOGY

Question 1

Which of the following components of the respiratory tract wall increase/s in amount from
trachea to alveoli:
A. cilia
B. elastic fibers
C. smooth muscle
D. cartilage

Answer 1

B. elastic fibers

Question 2

The presence of iron deposits in the cytoplasm of which of the following lung cell type is a
diagnostic feature of congestive heart failure:
A. Goblet cell
B. pneumocyte Type II
C. dust cell
D. Clara cell

Answer 2

C. dust cell

Question 3

In hypersensitivity reactions, this cell functions as an antigen-presenting cell in the skin:
A. keratinocyte
B. Langerhan’s cell
C. melanocytes
D. Merkel’s cell

Answer 3

B. Langerhan’s cell

Question 4

Which of the following cell types comprises the visceral layer of Bowmann’s capsule affected
in glomerular filtration disorders:
A. endothelial cell
B. juxtaglomerular cell
C. mesangial cell
D. podocyte

Answer 4

C. mesangial cell

Question 5

Which of the following hormone is most likely affected in hypothalamic tumors:
A. ADH
B. ACTH
C. FSH
D. TSH

Answer 5

A. ADH

Question 6

Diarrhea may result if which of the following organs fails to carry out its primary role in
absorbing water from the feces:
A. anal canal
B. colon
C. jejenum
D. ileum

Answer 6

B. colon

Question 7

Increase aqueous humor of the eye is due to the secretion by:
A. ciliary epithelium
B. choriocapillary layer
C. Schlemm’s canal
D. corneal endothelium

Answer 7

A. ciliary epithelium

Question 8

Contraction of the muscles of the forearm that commonly follows fractures of the distal
end of the humerus or fractures of the radius and ulna:
A. compartment syndrome of the forearm
B. Dupuytren’s contracture
C. Volkmann’s ischemic contracture
D. Bontonniera deformity

Answer 8

C. Volkmann’s ischemic contracture

Question 9

Fracture of the distal end of the radius which occurs from a fall on the back of the hand:
A. Colle’s fracture
B. Smith’s fracture
C. Monteggia’s fracture
D. Bennett’s fracture

Answer 9

B. Smith’s fracture

Question 10

A young boy sustained a superficial laceration in front of his right wrist which was
bleeding profusely. He had sensory loss over the palmar aspect of the medial 1 ½
fingers but normal sensation on the back of these fingers over the middle and proximal
phalanges. Which of the following statements about the patient is true:
A. the radial artery was cut in front of the flexor retinaculum
B. the loss of skin sensation was caused by the injury to the ulnar nerve as it crossed
in front of the flexor retinaculum
C. there was no sensory loss in the palm of the hand because the palmar cutaneous branch
of the ulnar nerve was cut
D. this will lead to carpal tunnel syndrome

Answer 10

B. the loss of skin sensation was caused by the injury to the ulnar nerve as it crossed
in front of the flexor retinaculum

Question 11

Which of the following is not part of the rotator cuff muscles:
A. infraspinatus
B. subscapularis
C. supraspinatus
D. teres major

Answer 11

D. teres major