Pituitary Gland Anatomy and Hormones Quiz

Test your knowledge of the pituitary gland with this quiz! Learn about the embryological origins of the anterior and posterior pituitary, the secretion of different hormones, and the control of hormone release by the hypothalamus. Discover the inhibitory control of dopamine on prolactin secretion and the mystery surrounding the physiological importance of melanocyte-stimulating hormone secretion. This quiz is perfect for anyone interested in endocrinology or anatomy and physiology.

Created by

@AppreciativeAntigorite

Questions and Answers

Which pituitary gland is derived from a downgrowth of nervous tissue from the hypothalamus?

Posterior pituitary

Where is oxytocin synthesized in the body?

The paraventricular nucleus

What percentage of the anterior pituitary do mammotrophs make up?

20%

How do ADH and oxytocin travel to the posterior pituitary?

Through the axons of the hypothalamopituitary tract Signup and view all the answers

Which pituitary gland arises as an epithelial upgrowth from Rathke's pouch?

Anterior pituitary Signup and view all the answers

Which area of the gland do somatotrophs mainly predominate?

Lateral lobes Signup and view all the answers

What is the specialized glandular epithelium that wraps around the anterior aspect of the posterior pituitary called?

Adenohypophysis Signup and view all the answers

How is the release of posterior pituitary hormones controlled?

By hormonal signals from the hypothalamus Signup and view all the answers

What is the function of prolactin?

Regulates milk production during lactation Signup and view all the answers

Which pituitary gland secretes antidiuretic hormone (ADH) and oxytocin?

Posterior pituitary Signup and view all the answers

Which hormone secretion is under the inhibitory control of dopamine?

Prolactin Signup and view all the answers

Study Notes

The anterior and posterior pituitary have different embryological origins.
The posterior pituitary is derived from a downgrowth of nervous tissue from the hypothalamus.
The anterior pituitary arises as an epithelial upgrowth from Rathke's pouch.
The adenohypophysis is the specialized glandular epithelium that wraps around the anterior aspect of the posterior pituitary.
The posterior pituitary secretes antidiuretic hormone (ADH) and oxytocin, while the anterior pituitary secretes various hormones controlled by releasing hormones.
ADH and oxytocin are synthesized in the hypothalamus and stored in the posterior pituitary.
Posterior pituitary hormone release is controlled directly by nervous impulses from the hypothalamus.
Anterior pituitary hormone release is controlled by specific hypothalamic releasing hormones.
Prolactin secretion is under the inhibitory control of dopamine, and growth hormone secretion is controlled by both releasing and inhibitory hormones.
The pars intermedia synthesizes and secretes melanocyte-stimulating hormone (MSH), but its physiological importance and control of secretion are poorly understood in humans.