Question

Study the following and pick up the correct combinations:

• A. I, II
• B. II, III
• C. III, IV
• D. I, III

Hint:

Each endocrine gland secretes specific hormones that regulate bodily functions. - Adrenal glands produce epinephrine, aiding in stress response. - Thyroid gland produces calcitonin, regulating calcium levels. - Hypothalamus regulates hormone release but does not produce LH directly. - Pituitary gland resides in the sella turcica, not directly in the diencephalon.

Answer 1

The Correct Option is A

Understanding the correct matching
- I - Adrenal glands = Anterior parts of kidneys = Epinephrine (Correct)
- Adrenal glands are located above the kidneys and secrete epinephrine (adrenaline), which regulates the fight or flight response.
- II - Thyroid gland = Junction of larynx and trachea = Calcitonin (Correct)
- The thyroid gland is located at the junction of the larynx and trachea and produces calcitonin, which helps regulate calcium levels.
- III - Hypothalamus = Sella turcica = Luteinizing hormone (Incorrect)
- The hypothalamus is located in the diencephalon, not in the sella turcica, and it does not directly produce luteinizing hormone (LH); instead, it releases GnRH, which stimulates LH secretion by the pituitary gland.
- IV - Pituitary gland = On the diencephalon = Somatocrinin (Incorrect)
- The pituitary gland is located in the sella turcica, not directly on the diencephalon, and somatocrinin is another name for growth hormone-releasing hormone (GHRH), which is actually secreted by the hypothalamus, not the pituitary gland.
Examining the given options
- Option 1 (I, II) → Correct, as both are correctly matched.
- Option 2 (II, III) → Incorrect (III is incorrect).
- Option 3 (III, IV) → Incorrect (Both III and IV are incorrect).
- Option 4 (I, III) → Incorrect (III is incorrect).
Conclusion
Since the correct matching is I, II, the correct answer is Option (1).