Which hormones are stored in the posterior pituitary?

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Study for the IMAT Biology Exam with focused multiple-choice questions. Use hints and explanations to enhance your preparation. Get ready for your exam success!

Multiple Choice

Which hormones are stored in the posterior pituitary?

Explanation:
The posterior pituitary stores and releases neurohormones produced by neurons in the hypothalamus. The two hormones held in storage there are oxytocin and vasopressin (antidiuretic hormone, ADH). Oxytocin triggers uterine contractions and milk ejection during lactation, while vasopressin promotes water reabsorption in the kidneys, helping regulate body fluid balance and blood pressure. Hormones like growth hormone and prolactin, as well as TSH and ACTH, are produced and released by the anterior pituitary, not the posterior. Insulin and glucagon come from the pancreas. So the hormones stored in the posterior pituitary are oxytocin and ADH.

The posterior pituitary stores and releases neurohormones produced by neurons in the hypothalamus. The two hormones held in storage there are oxytocin and vasopressin (antidiuretic hormone, ADH). Oxytocin triggers uterine contractions and milk ejection during lactation, while vasopressin promotes water reabsorption in the kidneys, helping regulate body fluid balance and blood pressure. Hormones like growth hormone and prolactin, as well as TSH and ACTH, are produced and released by the anterior pituitary, not the posterior. Insulin and glucagon come from the pancreas. So the hormones stored in the posterior pituitary are oxytocin and ADH.

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