Prissygirl,

Both the answers are right coz Oxytocin is released both from Hypothalamus and Pituitary; in order to make it clear I would like to explain the justification:

1. Pituitary gland is present under the hypothalamus like "a pea having a stalk"

2. Pituitary gland has two lobes in humans: i) Anterior lobe ii) Posterior lobe

3. The posterior lobe receives ready made hormones from the hypothalamus; therefore, posterior lobe acts as a storage area for the hormones from hypothalamus

4. Anterior lobe is composed of glandular tissue and itself manufacture and release the hormones.


Now answer to the confusion:

As the posterior pituitary lobe gets hormone from the hypothalamus; therefore, first hypotalamus releases the hormone i.e, oxytocin, for the posterior pituitary lobe for storage. There are various hormones that are released from hypothalamus to the posterior pituitary, e.g., Oxytocin and ADH (Antidiuretic Hormone).From posterior pituitary lobe, the Oxytocin is released in general circulation.

Therefore, Oxytocin is first released from "Hypothalamus to Posterior lobe of Pituitary gland" and then it is released from "Posterior lobe to the general circulation"

The above explanation is based on an authentic book "Human Anatomy and Phsiology" fourth edition by ELAINE MARIEB, R.N., Ph.D

thanks

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