Which of the following is synthesized by pars nervosa of the pituitary gland?

Options

A. ADH but not oxytocin
B. Oxytocin but not ADH
C. Both oxytocin and ADH
D. Neither oxytocin, nor ADH

Answer

To solve the question regarding which hormone is synthesized by the pars nervosa of the pituitary gland, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Function of Pars Nervosa**:
- The pars nervosa is also known as the posterior pituitary gland. It is important to note that this part of the pituitary gland does not synthesize hormones but rather stores and releases them.

**Hint**: Remember that the pars nervosa is part of the posterior pituitary and is primarily involved in storage.

2. **Understand Hormone Production**:
- The hormones associated with the posterior pituitary are Antidiuretic Hormone (ADH) and Oxytocin. However, these hormones are not synthesized in the posterior pituitary.

**Hint**: Focus on where ADH and Oxytocin are actually produced.

3. **Locate the Source of Synthesis**:
- Both ADH and Oxytocin are synthesized in the hypothalamus. They are then transported down the axons of the hypothalamic neurons to the posterior pituitary (pars nervosa) where they are stored until needed.

**Hint**: Recall that the hypothalamus is the key player in the synthesis of these hormones.

4. **Conclusion**:
- Since the question specifically asks for what is synthesized by the pars nervosa, and since it only stores hormones produced by the hypothalamus, the answer is that neither ADH nor Oxytocin is synthesized by the pars nervosa.

**Hint**: Reiterate that synthesis refers to the creation of hormones, which occurs in the hypothalamus, not the pars nervosa.

### Final Answer:
Neither ADH nor Oxytocin is synthesized by the pars nervosa of the pituitary gland; they are synthesized in the hypothalamus and stored in the pars nervosa.