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Endocrine Overview a
Part I Overview of the Endocrine System
Question | Answer |
---|---|
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. |