Match the source gland with its respective hormone and function and select the correct option

Options

A. `{:(" Source gland ","Hormone "," Function"),("Anterior pituitary ","Oxytocin","Contraction of uterus muscles during child birth"):}`
B. `{:(" Source gland ","Hormone "," Function"),("Posterior pituitary ","Vasopressin"," Stimulates reabsorption of water in the distal tubules in the nephron "):}`
C. `{:(" Source gland ","Hormone "," Function"),("Corpus luteum ","Oestrogen","Supports Pregnancy "):}`
D. `{:(" Source gland ","Hormone "," Function"),("Thyroid ","Thyroxine"," Requlates blood calcium level "):}`

Answer

To solve the question of matching the source gland with its respective hormone and function, we will analyze each option step by step:

### Step 1: Identify the Glands and Hormones
- **Oxytocin**: This hormone is produced by the **posterior pituitary** gland.
- **Vasopressin (ADH)**: Also produced by the **posterior pituitary** gland, it helps in water reabsorption in the kidneys.
- **Progesterone**: This hormone is secreted by the **corpus luteum** and is known as the pregnancy hormone.
- **Thyroxine**: This hormone is produced by the **thyroid gland** and is responsible for regulating the basal metabolic rate (BMR).

### Step 2: Match Each Option
1. **Oxytocin released from anterior pituitary**: This is incorrect because oxytocin is released from the posterior pituitary.
2. **Vasopressin from posterior pituitary**: This is correct as vasopressin (ADH) is released from the posterior pituitary and its function is to promote water reabsorption in the kidneys.
3. **Progesterone from corpus luteum**: This is correct, but the function mentioned is not complete. Progesterone supports pregnancy.
4. **Thyroxine from thyroid gland**: This is correct, but the function mentioned (regulating blood calcium levels) is incorrect. Thyroxine regulates BMR, while blood calcium levels are regulated by calcitonin (from the thyroid) and parathyroid hormone (from the parathyroid glands).

### Step 3: Determine the Correct Option
Based on the analysis:
- The first option is incorrect.
- The second option is correct.
- The third option is partially correct but does not match the function accurately.
- The fourth option is incorrect regarding the function of thyroxine.

Thus, the correct option is the **second option**.

### Final Answer
The correct option is the one that states: **Vasopressin from posterior pituitary, which promotes water reabsorption in the kidneys.**

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