In humans, fertilization usually occurs in the
Anonymous Quiz
3%
Vagina.
0%
Cervix
3%
Uterine cavity,
94%
Uterine tubes.
Which of the following is not a steroid?
Anonymous Quiz
6%
17a-hydroxyprogesterone
0%
Estrone
85%
Relaxin
9%
Pragnenolone
Which of the following probably triggers the onset of labor?
Anonymous Quiz
16%
ACTH in the fetus
3%
ACTH in the mother
0%
Prostaglandins
81%
Oxytocin
Loss of libido can be due to?
Anonymous Quiz
72%
Low testosterone level,
0%
Use of antibiotics
0%
Occasional drinking of alcohol
28%
All of the above
Which of the following inhibits pituitary FSH secretion?
Anonymous Quiz
0%
Testosterone
0%
LH
100%
Inhibin
0%
GnRH
When does maturation of graafian follicle begin?
Anonymous Quiz
3%
Before birth
3%
After menopause
91%
At puberty
3%
During childhood
Which of the following hormones stimulates the growth of small ovarian follicles at the beginning of the follicular phase of menstrual cycle?
Anonymous Quiz
3%
LH
0%
ACTH
0%
TSH
97%
FSH
Which of the following describes triggering of LH surge (sudden Increase) by rising level of estrogen at the time of ovulation?
Anonymous Quiz
97%
Positive feedback
0%
Short loop negative
0%
Long loop negative feedback
3%
Ultrashort negative feedback
Which of the following hormones inhibits FSH by negative feedback in the follicular phase of menstrual cycle?
Anonymous Quiz
9%
LH
3%
HCG
12%
Progesterone
76%
Estrogen
On which of the following menstrual cycle days does ovulation occur in a typical 28-day cycle?
Anonymous Quiz
0%
Day 5
0%
Day 21
3%
Day 35
97%
Day 14
Which of the following hormones causes growth and rupture of mature graafian follicle to release the ovum at the time of ovulation?
Anonymous Quiz
18%
FSH
15%
Estrogen
9%
Progesterone
59%
LH
Which of the following is/are TRUE as regards corpus luteum?
Anonymous Quiz
0%
Secretes progesterone and estrogen in postovulatory pariod.
13%
continues to grow under the effect of HCG a if pregnancy occurs
3%
It degenerates and transformed into corpus albicans if pregnancy does not occur.
84%
All of the above
Which of the following acts as a second messenger for FSH hormone?
Anonymous Quiz
94%
cAMP
0%
DNA
3%
Ca
3%
mRNA
Which of the following hormones produces shift in the histologic appearance of the endometrium to the secretory phase?
Anonymous Quiz
13%
Estrogen
6%
Follicle stimulating hormone (FSH)
9%
Luteinizing hormone (LH)
72%
Progesterone
Which of the following is/are signis of ovulation?
Anonymous Quiz
6%
Thick and cellular cervical muous temperature
13%
Secretory andometrium.
3%
Drop of basal body
6%
All of the above
72%
Only A and B
Which of the following is the portion of endometrium that shows the cyclic changes and shed with menstrual bleeding?
Anonymous Quiz
70%
Decidua functionalis
7%
Ectocervical mucosa
10%
Decidua basalis
13%
Myometrial layer
👍1
Which of the following describes the proliferative endometrium?
Anonymous Quiz
16%
Very thick (6mm)
6%
Corkscrew & secretory glands
61%
Straight and short glanda
16%
Tortuous & spiral arteries
Which of the following is/are TRUE as regards the secretory endometrium?
Anonymous Quiz
10%
Thick (5-6mm) glands
10%
Tortuous & spiral arteries
3%
Cork screw & secretory
76%
All of the above
Which of the following is correct as regards the duration of menstruation?
Anonymous Quiz
97%
3-5 days
0%
7-9 days
3%
14 days
0%
5-9 days
Which of the following describes polymenorrhea?
Anonymous Quiz
21%
Infrequent menses
42%
Regular frequent menses.
18%
Irregular bleeding
18%
None of the above