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A&P Ch 15
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Oxytocin
Posterior pituitary gland
Promotes contraction of myometrium of uterus (labor)
Promotes relaese of milk from mammayr glands
Nerve impulses from hypothalamus the result of stretching of cervix or stimulation of ni0pple
Secretion from placenta at end of gestation-stimulus unknown
Antidiuretic Hormone (ADH)
Posterior Pituitary gland
Increases water reabsorption by the kidney tubules (water returns to the blood)
Decreased water content in the body (alcohol nhibits secretion)
Growth Hormone
(Anterior Pituitary)
Increases rate of mitosis
Increases amino acid transport into cells
Increases reate of protein synthisis
Increases use of fats for energy
GHRH (hypothalamus) stimulates secretion
GHIH(hypothalamus) inhibits secretion
Thyroid Stimulating Hormone (TSH)
Anterior Pituitary Gland
Increases secretion of thyroxine and T3 by thyroid gland
TRH(hypothalamus)
Adrenocorticotropic
Anterior Pituitary Gland
Increases secretion of cortisol by the adrenal cortex
CRH(hypothalamus)
Prolactin
Anterior Pituitary Gland
Stimulates milk production by the mammary glands
PRH(hypothalamus)
PIH(hypothalamus)
Follicle-Stimulating Hormone(FSH)
Anterior Pituitary Gland
In Women:
Initiates growth of ova in ovarian follicles
Increases secretion of estrogen by follicle cells
In Men
:
Initiates sperm production in the testes
Gonadotropic hormone (GnRH)
Luteinizing Hormone(LH)(ICSH)
Anterior Pituitary Gland
In women:
Causes ovulation
Causes the ruptured ovarian follicle to become the corpus luteum
Increases secretion of progesteron by the corpus luteum
In Men:
Increases secretion of testosterone by the interstitial cells of the testes
Gonadotropic hormone (GnRH)
Thyroxine(T4) and Triiodothyronine(T3)
Thyroid Gland
Increase energy production from all food types
Increase rate of protein synthesis
Thyroid stimulating hormone (TSH)
Calcitonin
Thyroid Gland
Decreases the reabsorption of calcium and phosphate from bones to blood
Hypercalcemia
Parathyroid Hormone(PTH)
Parathyroid Gland
Increases the reabsorption of calcium and phosphate from bone to blood
Increases absorption of calcuim and phosphate by the small intestine
Increases teh reabsorption of calcuim and the excretion of phosphate by the kidneys
Hypocalcemia
Glucagon
Pancrease
Increases conversion of glycogen to glucose in the liver
Increases the use of excess amino acids and of fats for energy
Hypoglycemia
Insulin
Pancrease
Increases glucose transport into cells and the use of glucose for energy production
Increases the conversion of excess glucose to glycogen in the liver and muscles
Increases amino acid adn fatty acid transport into cells and their use in synthesis reactions
Hyperglycemia
Norepinephrine
Adrenal Medulla
Causes vasoconstriction in skin, viscera, and skeletal muscle
Sympathetic impulses from the hypothalamus in stress situations
Epinephrine
Adrenal Medulla
Increases heart rate and force of contraction
Dilates bronchoiles
Decreases peristalsis
Increases conversion of glycogen to glucose in the liver
Causes vasodilation in skeletal muscles
Causes vasoconstriction in skin and viscera
Increases use of fats for energy
Increases the rate of cell respiration
Sympathetic impulses from the hypothalamus in stress situations
Aldosterone
Adrenal Cortex
Increases reabsorption of sodium ions by the kidneys to the blood
Increases excretion of potassium ions by the kidneys in urine
Low blood sodium
Low blood volume or blood pressure
Cortisol
Adrenal Cortex
Increases use of fats and excess amino acids from energy
Decreases use of glucose for energy(except for the brain)
Increases conversion of glucose to glycogen in the liver
Anti-inflammatory effect
: stabilized lysosomes and blocks the effects of histamine
High blood potassium level
ACTH during physiological stress
Author
ssenft
ID
38407
Card Set
A&P Ch 15
Description
A&P ch 15
Updated
2010-09-29T17:26:07Z
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