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Endocrine Overview a

Part I Overview of the Endocrine System

Hormones major jobs Reproduction, growth & development, mobilizing body defenses against stressors, maintaining electrolyte water and nutrient balance of blood, regulating cellular metabolism and energy balance.
Three types of hormones Amino Based, Steroids, and Prostaglandis
Examples of Amino Based Hormones Melatonin, Oxytocin, Growth Hormone, Insulin, Glucagon
Examples of Steroid Based Hormones Androgens, Estrogen, Progesterone, Mineralocoricoids
Examples of Prostaglandis PGA, PGB, PGC, PGD....PGI
4 Functions of hormones 1) Changes in plasma membrane permeability or electrical state. 2)synthesis of proteins or certain regulatory molecules in cell 3)Activation or inactivation of enzymes 4)Stimulation of mitosis.
Name to three stimuli Hormonal, Humoral, and Neural
HORMONAL STIMULUS Organs are pushed into action by other hormones.
HUMORAL STIMULUS Body fluid levels change pushes hormones into action
NEURAL STIMULUS Releases hormones during stress
Name the 10 endocrine organs. 1]Pituitary 2]Thyroid, 3]Parathyroid, 4]Adrenal, 5]Pineal, 6] Thymus glands, 7]Pancreas, 8]Ovaries, 9]Testes, 10]Hypothalamus
Hormones of the Thyroid Gland Thyroid Hormone, Calcitonin.
THYROID HORMONE Controls rate that glucose is oxidized and burned, and converts it into body heat.
CALCITONIN decreases blood calcium levels by causing calcium to be departed in the bones.
Calcitonin is the antagonist of.... Parathyroid hormone
PARATHYROID HORMONE When blood calcium levels get low PTH triggers osteoclasts to release calcium into the blood.
Tetany Uncontrollable muscle spasms due to low blood calcium levels.
2 Organs of the Adrenal Glands Cortex and Medulla
Hormones secreted by the Adrenal Glands 1]Mineralocorticoids, 2]Glucocorticoids, 3]Sex Hormones
MINERALOCORTICOIDS Produced by the outermost cortex layer. Regulate mineral contend of blood. Regulate water and electrolyte balances.
GLUCOCORTICOIDS Produced by the middle cortical layer. Produces cortisone and cortisol. Control flammation.
SEX HORMONES Produced by innermost cortex layer. [Male]Androgens [Female] Estrogens
Hormones the Adrenal Medulla releases Epinephrine and norepinephrine.
Created by: gabriellevallee