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MCAT-Hormones

MCAT-hormones

QuestionAnswer
FSH Follicle-Stimulating. Source? Anterior Pituitary
LH- Luteinizing. Source? Anterior Pituitary
TSH Thyroid Stimulating. Source? Anterior Pituitary
Prolactin. Source? Anterior Pituitary
Growth Hormone. Source? Anterior Pituitary
Endorphins. Source? Anterior Pituitary
FLAT PEG? Source? Fsh, Lh, Acth, Tsh, Pro, End, Gh. Anterior Pituitary
FSH. Action? Stimulates follicle maturation; spermatogenesis.
LH. Action? Stimulates ovulation; testosterone synthesis.
Adrenocorticotric (ACTH). Source? Anterior Pituitary
(ACTH). Action? Stimulates adrenal cortx to make and secrete glucocorticoids
TSH Action? Stimulates the thyroid to produce thyroid hormones.
Prolactin. Action? Stimulates milk production and secretion
Endorphins. Action? Inhibit the perception of pain in the brain
Growth Hormone. Action? Stimulates bone and muscle growth/lipolysis
Oxytocin. Source? Stored? Hypothalamus; stored in Posterior Pituitary
Vasopressin (ADH). Source? Stored? Hypothalamus; stored in Posterior Pituitary
Oxytocin. Action? Stimulates uterine contractions during labor, milk secretion during lactation.
ADH. Action? Stimulates water absorption in kidneys.
Thyroid Hormones (T4, T3). Source? Thyroid
Thyroid Hormones (T4, T3). Action? Stimulates metabolic activity.
Calcitonin. Source? Thyroid
Calcitonin. Action? Decreases (tones down) blood calcium level.
Parathyroid hormone. Source? Parathyroid.
Parathyroid hormone. Action? Increases the blood calcium level.
Glucocorticoids. Source? Adrenal Cortex.
Mineralocorticoids. Source? Adrenal Cortex.
Glucocorticoids. Action? Increases blood glucose level and decreases protein synthesis.
Mineralocorticoids. Action? Increases water absorption in kidneys
Epinepherine, Norepinepherine. Source? Adrenal Medulla.
Epinepherine, Norepinepherine. Action? Increases blood glucose level and heart rate.
Glucagon. Source? Pancreas.
Glucagon. Action? Stimulates conversion of glycogen to glucose in the liver, increases blood glucose.
Insulin. Source? Pancreas.
Insulin. Action? Lowers blood glucose, increases glycogen stores.
Somatostatin. Action? Suppresses secretion of glucagon and insulin.
Testosterone. Source? Testes.
Testosterone. Action? Maintains male secondary sexual characteristics.
Estrogen. Source? Ovary/ Placenta
Progesterone. Source? Ovary/ Placenta.
Melatonin. Source? Pineal
Atrial Natriuretic Peptide. Source? Heart
Thymosin. Source? Thymus
Estrogen. Action? Maintains female secondary characteristics
Progesterone. Action? Promotes growth/maintenance of endometrium. Released by corpus luteum. stimulates the uterus to prepare for pregnancy.
Melatonin. Action? Unclear in humans... thought to have possible roles in circadian rhythms, as antioxidant, in immune system.
Atrial Natiuretic peptide. Action? Involved in osmoregulation and vasodialation.
Vasodialation dialation of blood vessels, which decreases bp
Thymosin. Action? Stimulates T lymphocyte development.
How do peptide hormones act? via secondary messengers.
How do steroid hormones act? via a hormone/receptor binding to DNA.
How do amino acid hormones act? via secondary messengers OR via a hormone/receptor binding to DNA.
Somatostatin. Action? Supresses secretion of glucagon and insulin.
Created by: ak3dave888 on 2010-03-10



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