AAMC FL Practice Exam 2026 – 400 Free Practice Questions to Pass the Exam

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From which gland is vasopressin (ADH) released?

Anterior pituitary gland

Posterior pituitary gland

Vasopressin, also known as antidiuretic hormone (ADH), is released from the posterior pituitary gland. This gland plays a crucial role in the endocrine system by storing and releasing hormones produced in the hypothalamus. Specifically, vasopressin is synthesized in the hypothalamus and transported down the axons to the posterior pituitary, where it is released into the bloodstream.

The posterior pituitary serves as a storage and release site for this hormone, which is key in regulating water balance in the body by promoting water reabsorption in the kidneys. This physiological role is essential for maintaining hydration and electrolyte balance, particularly in response to dehydration or increased plasma osmolality. Understanding the distinct functions of the different glands in the endocrine system emphasizes why the posterior pituitary gland is the factor for ADH release.

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Adrenal gland

Thyroid gland

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