weekly exam (Final multiple choice questions)

MCQ with answers

Male genital system, female genital system, eye and ear:

1- A surge of FSH and LH is induced in the adenohypophysis 24-hours before ovulation and the first meiotic division of the primary oocyte resumes. At what stage does the oocyte become arrested until it becomes fertilized?

a) First meiotic division, prophase

b) First meiotic division, metaphase

c) Second meiotic division, prophase

d) Second meiotic division, metaphase

e) Second meiotic division, anaphase

2- The transition zone between the vagina and cervix is a common site of cervical dysplasia and HPV-related cancer. What epithelial transition is seen here?

a) Vaginal simple squamous to cervical simple columnar

b) Vaginal simple columnar to cervical simple squamous

c) Vaginal simple squamous to cervical stratified columnar

d) Vaginal stratified squamous to cervical simple columnar

e) Vaginal stratified squamous to cervical stratified columnar

3- Which of the following portions of the placenta secretes HCG?

a) Syncytiotrophoblast

b) Cytotrophoblast

c) Endometrium

d) Chorion

4- Which of the following components of the fetoplacental (endocrine) unit is similar to thyroid stimulating hormone (TSH) and stimulates T4 secretion by the maternal thyroid?

a) Human chorionic gonadotropin (hCG)

b) Human chorionic somatomammotropin (hCS, hPL)

c) IGF-I and IGF-II

d) Endothelial growth factor (EGF)

e) Relaxin

f) Leptin

5-  Prophase I of the spermatocyte phase lasts approximately:

a) 2-hours

b) 24-hours

c) 2-days

d) 16-days

e) 22-days

6-Which spermatid phase (spermiogenesis) is distinguished by the presence of PAS- positive granules called pro-acrosomal granules?

a) Golgi phase

b) Cap phase

c) Acrosome phase

d) Maturation phase

7-A drug is given that affects the initial phases of spermatogenesis to aid in a patient’s infertility complaints. How much time would it take for the effects of this drug to be seen?

a) 4.6-days

b) 16-days

c) 22-days

d) 48-days

e) 86-days

8- .The main structures in erectile tissue responsible for maintaining an erection are the:

a. pacinian corpuscles

b. peripheral nerves

c.   helicine arteries

9- A patient comes in having had repeated colds and infections. Problems in his ear are shown to be due to accumulation of fluid in the middle ear. This is due to a blockage of the:

a. Saccule

b. Utricle

c.   External ear

d. Eustachian tube

e. Endolymphatic sac

10- People lacking melanocytes are deaf. These cells function as part of:

a. Hair cells

b. modiolus

c.   spiral limbus

d. stria vascularis

e. basalar membrane

f.    vestibular membrane

11- The transmission of sound vibrations through the inner ear occurs chiefly through:

a. Bone

b. Nerve fibers

c.   Air

d. Liquid

e. Skin and cartilage

12- Which cells in the seminiferous tubules progress through the first meiotic division?

a. Sertoli cells

b. Spermatogonia

c.    Spermatid

d. primary spermatocyte

e. secondary spermatocyte

13- Variations in eye color are determined by the number of pigmented cells in the:

a. Ciliary epithelium

b. Iris epithelium

c.   Iris stroma

d. Corneal stroma

e. Corneal epithelium

14- What type of glands are the glands of Moll?

a. Endocrine gland

b. Apocrine sweat gland

c. Oil gland

d. Sebaceous glands

e. Eccrine sweat gland

15- Concerning Muller’s cells, all are true except:

a- They share in the formation of the limiting membranes.

b- They are nerve cells.

c- They have long processes.

d- Their nuclei are present in the inner nuclear layer.

e- They are very long cells.

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