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12 Cards in this Set
- Front
- Back
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Progesterone Roles? |
primary function in women: - acts as a "fertilizer" in that in preps the uterine lining for implantation of the ovum and maintains that lining through out pregnancy. It makes the "growing" environment suitable for ovum -Also promotes mammary tissue growth |
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Cortisol Roles? |
synthesized and secreted from cells of adrenal glands, aka hydrocortisone -Liver: increase glycogen synthesis and gluconeogenesis -skeletal muscle: DECREASE glucose uptake and protein synthesis, INCREASE protein catabolism (break down) - adipose tissue: increase lipid mobilization and decrease glucose uptake |
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Aldosterone roles? |
also synthesized and released from the cells in the adrenal cortex. -increase reabsorption of Na+ in kidney, intestines, salivary and sweat glands. -Net effect- retention of Na+ in ECF, thus increase ECF vol. -this causes incr. blood vol, increase BP and blood flow |
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Testosterone Roles? |
Synthesized in Male Leydig cells of the testes -Aids in sperm maturation -development of secondary sex characteristics |
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Estradiol Roles? |
-primary estrogen in women -synthesized in the theca cells of the ovarian follicles -secondary sex characteristics -regulate ovarian cycle -control certain metabolic processes |
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Prostaglandin roles? |
- produced by almost all cell sin the body -act as paracrine or autocrine hormones -regulate synthesis of cAMP -effects on smooth muscle function, sleep-wake cycle, elevation of body temp associated with fever and pain |
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Vitamin (definition) |
an essential nutrient that CANNOT be synthesized by the body and must therefore be consumed thru the diet. -water or lipid soluble -lipid sol. can be stored in fat, water sol excreted thru urine |
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Which are the fat soluble vitamins? |
A, D, E, K |
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Vitamin A (roles) |
aka carotene -vision, growth & development, immune function - |
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Vitamin D (roles) |
aka cholecalciferol -consumed or formed in a UV driven reaction in the skin -its metabolite increases calcium and phosphate uptake in the intestines -thus, promote bone production -lack of vitamin D- Rickets- curved long bones in kids |
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vitamin E (roles) |
biological antioxidants -its aromatic ring reacts with free radicals, thus destroying them -prevent oxidative damage, an important contributor to cancer and aging |
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Vitamin K |
actually a group of compounds, - vital role in forming blood clotting factors - also required to introduce calcium binding sites on several calcium dependent proteins |
