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Endocrine physiology

Glands

Hormones

Endocrine

Exocrine

hypothalamus

the pituitary gland

thyroid

parathyroid

pancreatic islets

cortex and adrenal medulla

testicle

ovary

Peptides and proteins

Formed by three or more of 200 amino acids

Steroid hormones

The synthesis of steroid hormones it is carried out in the mitochondria and in the reticulum rough endoplasmic enzyme action specific ones that convert cholesterol into the steroid appropriate.

Hormones derived from amino acids

They form by modifying the side chains of a molecule of tyrosine or tryptophan.

Eicosanoid hormones

They are formed from lipids and phospholipids via linoleic acid and of the arachidonic.

Hormones derived from vitamins

Retinoids and vitamin D.

Hormonal functions

1. Growth and development.

2. Maintenance of the internal environment (homeostasis).

3. Cell differentiation and reproduction.

4. Regulation of metabolism and nutritional intake.

5. Tissue remodeling.

Hormonal regulation

Autocrine control

Paracrine control

The chemical signal system can act inside of the same cell that produces it

The chemical signal system can act by pouring into the extracellular space, to express its effect on the same cell that originates the mediator chemical

Frida Olivia López Méndez