Find out the correct combinations :-
(a) LH - Development of ovarian follicle.
(b) ACTH - Synthesis of steroid hormone.
(c) Oxytocin - Ejection of milk
(d) FSH - maintenance of corpus luteum.

Options

A. a, b
B. b, d
C. b, c
D. c, d

Answer

To solve the question, we need to analyze each hormone and its corresponding function to determine which combinations are correct.

### Step-by-Step Solution:

1. **Analyzing LH (Luteinizing Hormone)**:
- LH is secreted by the anterior pituitary gland.
- Its primary role is to trigger ovulation and support the development of the corpus luteum after ovulation.
- **Conclusion**: The statement "LH - Development of ovarian follicle" is incorrect. LH is more associated with ovulation rather than the development of the ovarian follicle, which is primarily the role of FSH.

2. **Analyzing ACTH (Adrenocorticotropic Hormone)**:
- ACTH is also secreted by the anterior pituitary gland.
- Its main function is to stimulate the adrenal cortex to produce steroid hormones, such as cortisol.
- **Conclusion**: The statement "ACTH - Synthesis of steroid hormone" is correct.

3. **Analyzing Oxytocin**:
- Oxytocin is produced in the hypothalamus and released from the posterior pituitary gland.
- Its functions include stimulating uterine contractions during childbirth and promoting milk ejection during breastfeeding.
- **Conclusion**: The statement "Oxytocin - Ejection of milk" is correct.

4. **Analyzing FSH (Follicle-Stimulating Hormone)**:
- FSH is secreted by the anterior pituitary gland.
- Its primary role is to stimulate the growth and maturation of ovarian follicles in females and spermatogenesis in males.
- **Conclusion**: The statement "FSH - Maintenance of corpus luteum" is incorrect. The maintenance of the corpus luteum is primarily the role of LH.

### Final Evaluation of Combinations:
- (a) LH - Development of ovarian follicle: **Incorrect**
- (b) ACTH - Synthesis of steroid hormone: **Correct**
- (c) Oxytocin - Ejection of milk: **Correct**
- (d) FSH - Maintenance of corpus luteum: **Incorrect**

### Correct Combinations:
The correct combinations are (b) and (c).