Endocrine System. Endocrine System. Overview: Purpose, Basic Structures. What is the function of the endocrine system?. To coordinate body functions by facilitating communication between cells in response to environmental and cellular signals. Purpose?.
Overview: Purpose, Basic Structures
Only target cells will respond to the particular secretion
To bring hormones that use internal receptors to the target cell
Once inside the cell, to bring hormones to the receptor
Hormone-like Lipids: single chain of fatty acid
Steroids: made from cholesterol molecules
“Master endocrine gland”
The pineal gland is responsible for producing melatonin and serotonin.
hypothalamusto anterior pituitary
The adrenal glands are made up of an outer cortex and an inner medulla.
The adrenal cortex produces corticosteroids and androgens. The adrenal medulla produces adrenaline and noradrenaline.
The thyroid gland helps control the metabolic rate.
The parathyroid gland increases calcium levels in the blood.
The pancreas produces hormones and digestive enzymes.
The thymus gland produces secretions that stimulate the immune system.
Gonad: An organ of the reproductive system
Testis: The male gonad; produces sperm and testosterone
Ovary: The female gonad; produces eggs, estrogen, and progesterone
Endocrine: Pathology of the Endocrine System
1. How would one know if the endocrine system is affected by disease?
Endocrine: Aging of the Endocrine System
1. What happens to hormones as a person ages?
2. What can people do to counteract the effects of an aging endocrine system?