Download Endocrine System—secrete hormones into body fluids

Ch. 11 Endocrine System
Endocrine System—secrete hormones
into body fluids
Exocrine glands-secrete onto body
surface through ducts (sweat and salivary
glands)
Endocrine Function:
1. Regulate metabolic processes
2. Aid in transport through
membranes
3. Regulate water and electrolyte
balances
4. Roles in reproduction,
development, and growth
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Hormone-biochemical that a cell secretes
-Action restricted to the hormone’s target
cells that contain receptors for the
specific hormone
Hormone Types
1. Steroid-diffuse into cells and direct
protein synthesis
2. Non steroid hormones-amines, peptides,
proteins—combine with receptors in target
cell membranes
3. Prostaglandins-lipids made from a
fatty acid in cell membranes—made
by many cells—act locally, work
quickly
Hormone secretion controlled by
Negative Feedback systems-gland
secretes hormone until concentration is
high enough, then the gland is inhibited
(STOPPED). When concentration falls,
inhibition ceases and secretion begins
again.
Gland secretion is controlled by:
1. Hypothalamus controls anterior pituitary,
which stimulates other glands.
2. Nervous system controls some glands
directly.
3. Some respond directly to internal
environment changes. (Pancreas secretes
insulin based on levels of blood glucose)
PowerPoint of Gland
Where is it? Show diagram
What hormones does it secrete?
Purposes of those hormones?
At least 2 Disorders related to the gland or hormones
1. Pituitary intro and Posterior Pituitary hormones
2. Anterior Pituitary
3. Thyroid4. Parathyroid5. Adrenal intro and Adrenal Medulla
6. Adrenal cortex
7. Pancreas8. Pineal
9. Thymus,
10.Reproductive (ovaries and testes)