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प्रश्न
Arrange the following hormones in sequence of their secretion in a pregnant woman. Mention their source and the function they perform:
hcG, LH, FSH, Relaxin
Arrange the following hormones in sequence of their secretion in a pregnant woman.
hCG; LH; FSH; relaxin.
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उत्तर
(a) The sequence of secretion of the given hormones in a pregnant woman is as follows:
- FSH
- LH
- hCG
- Relaxin
(b) source and the function:
| Hormone | Source | Functions |
| FSH | Anterior pituitary lobe | Stimulates the growth of ovarian follicles and maturation of primary oocytes |
| LH | Anterior pituitary lobe | Induces ovulation and maintains corpus luteum |
| hCG | Chorionic cells of placenta | Maintains the corpus luteum and stimulates it to secrete progesterone |
| Relaxin | Ovary | Helps during child birth by relaxing the pelvic muscles as well as muscles of the cervix. |
Notes
Students should refer to the answer accoding to their question.
संबंधित प्रश्न
When and where do chorionic villi appear in humans?
Medically it is advised to all young mothers that breast-feeding is the best for their newborn babies. Do you agree? Give reasons in support of your answer.
Explain Rh factor incompatibility during pregnancy.
The first movements of the foetus and appearance of hair on its head are usually observed during which month of pregnancy?
In the event of pregnancy, the corpus luteum persists under the influence of ______.
In the development of the human body, the ectoderm is responsible for the formation of ______.
The concentration of which of the following substances will decrease in the maternal blood as it flows from embryo to placenta through the umbilical cord?
The human foetus within the uterus
- Oxygen
- Amino Acids
- Carbon dioxide
- Urea
Several hormones like HCG, HPL estrogen, and progesterone are produced by ______.
Draw a diagram showing human foetus within the uterus and label any four, parts in it.
Match the columns I and II with reference to weeks of pregnancy and the development of a human embryo. Select the correct option from the choices given below:
| Column I | Column II | ||
| I. | 8 weeks | (P) | Limbs and external genital organs |
| II. | 12 weeks | (Q) | Limbs and digits develop. |
| III. | 20 weeks | (R) | Body hair develops. |
| IV. | 24 weeks | (S) | Eyelids separate. |
