What does posterior pituitary mean?

Posterior pituitary: The back portion of the pituitary, a small gland in the head called the master gland. The posterior pituitary secretes the hormone oxytocin which increases uterine contractions and antidiuretic hormone (ADH) which increases reabsorption of water by the tubules of the kidney.

What is pituitary gland Slideshare?

Pituitary Gland (Anatomy)  Also called the hypophesis  Measures about 1 centimeter in diameter and 0.5 to 1 gram in weight  Lies in the sella turcica, connected to the hypothalamus by the pituitary/hypophysial stalk.  Physiologically, divided into two distinct portions: 1. Anterior pituitary (Adenohypophysis) 2.

What is posterior pituitary hormone?

The posterior pituitary secretes two peptide hormones, namely, arginine vasopressin (AVP), formerly called ADH (antidiuretic hormone), and oxytocin. Both hormones are synthesized by the cell bodies of the supraoptic and paraventricular nuclei in the hypothalamus.

What is posterior pituitary also called?

The posterior pituitary (or neurohypophysis) comprises the posterior lobe of the pituitary gland and is part of the endocrine system. Hormones known as posterior pituitary hormones are synthesized by the hypothalamus, and include oxytocin and antidiuretic hormone.

Where is the posterior part of the pituitary gland?

Posterior pituitary Location. It is the rear or posterior part of the pituitary gland, a small gland located in the head (also referred to as the master gland).

Are there more cells in the anterior pituitary?

There are more cells in the anterior pituitary, so it usually stains darker. Pituitary Gland – 100X While the anterior pituitary (a) is made up almost entirely of cells, the posterior pituitary (p) contains few cells and a lot of nerve cell processes–the axons of hypothalamic neurons.

What makes up the volume of the pituitary gland?

Pituitary Gland – 100X While the anterior pituitary (a) is made up almost entirely of cells, the posterior pituitary (p) contains few cells and a lot of nerve cell processes–the axons of hypothalamic neurons. Supporting cells called pituicytes make up about one fourth or 25% of the volume of the posterior pituitary.

Is the pituitary gland a pea or a pea?

INTRODUCTION What is the pituitary gland?The pituitary gland (sometimes called thehypophysis) is a small gland that danglesfrom the base of the brain like a “pea on astring.”Several hormones produced by thehypothalamus are stored here andreleased into the blood 2. PITUITARY GLAND Has two parts : a) anterior lobe b) posterior lobe