Question Video: Describing the Structure of the Pituitary Gland Science

Fill in the blank: In the human brain, the pituitary gland is divided into _.


Video Transcript

Fill in the blank. In the human brain, the pituitary gland is divided into blank. (A) Three hemispheres, (B) four flaps, (C) two main lobes, or (D) two cavities.

This question asks us about the pituitary gland within the human brain. Let’s review the structure and function of the pituitary gland in order to answer the question correctly.

The pituitary gland is often referred to as the master gland within the body. This is because it has numerous effects on nearly every organ or tissue and because it controls other endocrine glands in the body. Through the secretion of its many hormones, the pituitary gland influences various processes: our metabolism, growth, reproduction, the regulation of our blood pressure, or even our emotions.

Anatomically, the pituitary gland is located at the base of the brain. It’s a small gland, only the size of a pea. The pituitary gland is surrounded by a very rich network of capillaries, into which its hormones will be released in order to be delivered in the entire body.

As you can see on the diagram here, the pituitary gland itself is divided into two lobes: the anterior and posterior pituitary. The two lobes are quite different in the hormones that they secrete. The posterior lobe is more like a storage place for the hormones produced in the hypothalamus, the brain structure that is located just above the pituitary gland. The anterior lobe, on the other hand, both produces and releases hormones.

As our question asks about the structure of the pituitary gland, we are now able to identify the word that should fill in the blank in the statement, and therefore the correct answer to this question. In the human brain, the pituitary gland is divided into (C) two main lobes.

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