Biology Endocrine System:
Endocrine Glands:
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Hypothalamus – Control pituitary gland
Pituitary- secrets different hormones to affect different glands
Thyroid – Metabolism regulation
Parathyroid – Calcium regulation
Adrenal -Flight/fight
Pancreas- Sugar Level regulation
Ovary- Female sex hormones
Testes – Male sex hormones
Chemical Classes of Hormones:
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Lipid Soluble
Water Soluble
Lipid Soluble
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Steroid Hormones (adrenal cortex, kidneys, testes, ovaries)
Thyroid Hormones ( Thyroid gland)
Nitric Oxide (Endothelial cells lining blood vessels)
Water soluble
-
Amine hormone
Peptide and protein hormones (hypothalamus and anterior/posterior pituitary)
Eicosanoid hormones
Types of Hormones:
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Local
Circulating
Local:
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Don’t circulate in the blood
Produces by nerve and gland cells
Activated and inactivated quickly
Circulating:
-
Longer lasting
Inactivated by the liver and secreted by the kidneys
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Major Glands
Thyroid
-
Parathyroid gland (chief and oxyphilic cells)
Adrenal gland
Pineal gland – secrete melatonin
Control of Blood Glucose:
Main Symptoms of Type 1 Diabetes:
-
Blurred vision
Thirst
Tiredness
Weight loss
Urination
Slow healing
Thrush/genital itching
These symptoms can be revered once the body is treated with insulin
Type 2 Diabetes (very common)
Main symptoms:
( Same as Type 1 diabetes)