1 / 18

Endocrine System

Endocrine System. Mr. Chapman Biology 30 Stolen from future Mrs. Chapman. What is the Endocrine System?. The endocrine system helps the body grow , develop and maintain homeostasis . The endocrine system makes chemicals called hormones that act to maintain homeostasis.

marin
Download Presentation

Endocrine System

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Endocrine System Mr. Chapman Biology 30 Stolen from future Mrs. Chapman

  2. What is the Endocrine System? • The endocrine system helps the body grow, develop and maintainhomeostasis. • The endocrine system makes chemicals called hormones that act to maintain homeostasis. • Hormones are made by organs known as glands.

  3. Endocrine System Details • As hormones move through the body they will be in contact with many cells, however they will only interact with specific cells that have the proper receptor. • Cells that have the correct receptors are called targetcells.

  4. Categories of Hormones • There are two categories of hormones: • Steroid hormones • Non-steroidhormones • ALL steroid hormones are made from cholesterol, which is a lipid.

  5. Hypothalamus • The hypothalamus acts as a connection between the CNS and the endocrine system. • The hypothalamus is located at the base of the brain.

  6. Hypothalamus • As part of the CNS the hypothalamus receives, interprets, and sorts information from the sensory organs. • As part of the endocrine system, the hypothalamus produces releasing hormones.

  7. Hypothalamus: “Call me Master” • The hypothalamus is known as the mastercontrolcenter of the endocrine system. • Its endocrine signals directly control the pituitary gland which secretes hormones that will influence body functions.

  8. See how the hypothalamus controls EVERYTHING? Hypothalamus releases TRH in response to cold exposure, which stimulates the pituitary to release TSH. TSH is called thyroid-stimulating hormone. Thyroid is stimulated to release thyroxine. Thyroxine is released into the blood where it increases the metabolic rate of body cells, thereby warming the body. Warmth of body ends stimulation of hypothalamus, halting the cycle.

  9. Pituitary Gland • The pituitary gland is actually an extension of the hypothalamus, which consists of an anterior and posterior lobe.

  10. The Thyroid Gland • The thyroid gland helps to regulate development and metabolism. • The thyroid and parathyroid gland maintain calcium homeostasis by regulating the hormone calcitonin.

  11. Adrenal Glands • The adrenal glands, which are located on top of the kidneys, produce hormones that enable the body to respond to stress.

More Related