Lecture 133 of 373: Endocrine System - Functioning; Pituitary Gland (57 mins) | CUET (Common University Entrance Test) PG Zoology (SCQP28) | Complete Video Course 373 Lectures [222 hrs : 42 mins]

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Endocrine System

The endocrine system is made up of glands and the hormones they secrete.

Although the endocrine glands are the primary hormone producers, the brain,

heart, lungs, liver, skin, thymus, gastrointestinal mucosa, and placenta also produce and release hormones.

The endocrine system and nervous system work together to help maintain homeostasis balance.

The hypothalamus is a collection of specialized cells located in the brain, and is the primary link between the two systems.

It produces chemicals that either stimulate or suppress hormone secretions of the pituitary gland Secretions from the anterior pituitary gland

Growth Hormone (GH): essential for the growth and development of bones, muscles, and other organs.

It also enhances protein synthesis, decreases the use of glucose, and promotes fat destruction.

Secretions from the anterior pituitary gland

Luteinizing Hormone (LH): is a gonadotropic hormone stimulating the development of corpus luteum in the female ovarian follicles and the production of testosterone in the male

Secretions from the posterior lobe of the pituitary gland

Antidiuretic Hormone (ADH): stimulates the reabsorption of water by the renal tubules. Hyposecretion of this hormone can result in diabetes insipidus.