The first menstruation begins at……..in females.
a) childhood stage
b) at puberty
c) at adulthood
d) at infant stage
Explanation first period is called menarche.
The uterine or menstrual cycle is a series of cyclic changes that the uterine………goes through each month as it responds to the waxing and waning of ovarian hormone in the blood.
a) perimetrium
b) endometrium
c) myometrium
d) all of these
Explanation The lining of the uterus (endometrium) starts to thicken. One of the ovaries releases an egg. And then, if the egg isn't fertilized or a fertilized egg doesn't attach to the lining of the uterus (implant), the endometrium sheds from the uterus as a menstrual period.
Which of the following gland controlled the endometrial changes coordinated with the phase of ovarian cycle?
a) posterior pituitary
b) thymus
c) anterior pituitary
d) thyroid
Which of the following hormones of anterior pituitary controlled the endometrial changes coordinated with the phase of ovarian cycle?
a) FSH
b) LH
c) TSH
d) both a and b
Explanation these two hormones are gonadotropins released by anterior pituitary under the GnRH of hypothalamus
How many phases are there in the menstrual or uterine cycle of adult female?
a) two
b) three
c) four
d) five
Explanation 1. Menstrual phase,
2. Proliferative/preovulatory phase and 3. Secretory/postovulatory phase
In how many days, menstrual or uterine cycle completed normally for human female?
a) 6 days
b) 14 days
c) 21 days
d) 28 days
Explanation every woman's cycle is different. For example, teenagers might have cycles that last 45 days, whereas women in their 20s to 30s might have cycles that last 21 to 38 days.
