In human beings, the embryo heart is formed about after ________ of pregnancy.
1. | One month | 2. | Two months |
3. | First trimester | 4. | Second trimester |
The signals of fetal ejection reflex originate from:
1. Maternal pituitary
2. Maternal hypothalamus
3. Fully developed fetus and placenta
4. Fetal pituitary
The milk produced during the initial few days of lactation, called colostrum, is essential for the newborn as colostrums contains:
1. | a Large amount of glucose | 2. | Anti-infective antibodies |
3. | Fats | 4. | Various hormones |
Which of the following hormones is not secreted by the human placenta?
1. | hCG | 2. | hGH |
3. | hPL | 4. | Progesterone |
To induce uterine contractions for parturition, which of the following hormones can be injected into the female?
1. | hCG | 2. | Estrogen |
3. | Progesterone | 4. | Oxytocin |
In humans, the process of spermatogenesis in males and oogenesis in females are similar in:
1. | Age at which the processes begin |
2. | The number of resultant haploid cells |
3. | Cytokinesis |
4. | Occurring in respective primary sex organs |
Which of the following is not produced in the woman only during pregnancy?
1. | hCG | 2. | hPL |
3. | Relaxin | 4. | Oxytocin |
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 |
Implantation in humans occurs at the stage of:
1. | Zygote | 2. | Morula |
3. | Blastocyst | 4. | Gastrula |
The trophoblast cells of the blastocyst form:
1. | Embryo | 2. | Umbilical cord |
3. | Placenta | 4. | Teratoma |