Question

which of the following glands synthesizes antidiuretic hormone?
hypothalamus
pancreas
thymus
pineal gland

Explanation:

Antidiuretic hormone (ADH), also known as vasopressin, is synthesized in the hypothalamus. The hypothalamus is a key part of the brain that plays a crucial role in regulating many bodily functions, including fluid balance. After synthesis in the hypothalamus, ADH is transported to the posterior pituitary gland, where it is stored and released into the bloodstream as needed.
The pancreas is mainly involved in producing digestive enzymes and hormones like insulin and glucagon. The thymus is important for the development of T - lymphocytes (a type of white blood cell) and is part of the immune system. The pineal gland is associated with the production of melatonin, which helps regulate the sleep - wake cycle.

Answer:

Hypothalamus