During pregnancy the levels of thyroxin:
1. Increase several folds in maternal blood
2. Increases several folds in fetal blood
3. Decreases several folds in maternal blood
4. Decreases several folds in fetal blood
The first movements of the fetus and the appearance of hair on the head are usually observed during:
1. 2nd month
2. 3rd month
3. 5th month
4. 6th month
The milk produced during the initial few days of lactation, called colostrum, is essential for the new born as colostrums contains:
1. Large amount of glucose
2. Anti-infective antibodies
3. Fats
4. Various hormones
All of the following structures are derived from mesoderm except the ____.
1. pancreas
2. dermis of skin
3. notochord
4. heart
Sperm has several components out of which the function of the acrosome is to:
1. | Produce base to neutralize the acidic environment of the female reproductive system |
2. | Propel the sperm as they swim through the fluid of the female reproductive tract |
3. | Release an enzyme that breaks down the membrane of the ovum |
4. | Metabolise the sugars provided by the semen for energy |
At what point does the secondary oocyte complete meiosis?
1. when acrosomal enzymes begin to break down the egg's jelly coat
2. when the luteinizing hormone triggers ovulation
3 after it is penetrated by a sperm cell
4. when the secondary oocyte implants in the endometrium of the uterus
How do ovulated oocytes get into the uterus?
1. Because ovaries are within the uterus, the ovulated egg is already within the uterus.
2. Cilia within an oviduct create currents that sweep the egg toward the uterus.
3. The oocyte actively swims through the oviduct, using its flagellum.
4. Fimbriae sweep over the oviduct.
Which of the following hormones is not secreted by the human placenta?
1. HCG
2. HGH
3. HPL
4. Progesterone
Which of the following is secreted only during the luteal phase of a menstrual cycle ?
1. LH
2. FSH
3. Estrogen
4. Progesterone
Which of these structures contributes the greatest percentage to semen ?
1. Bulbourethral glands
2. Prostate
3. Seminal vesicles
4. Testes