2.Describe the second messenger: after the hormone attaches to its specific receptor site, anumber of chemical reactions occur, these reactions activate molecules within the cellK Rowe LVNPage33of93Rev: May 2020
Homework Package 6, Chapters 11, 12, & 13K Rowe LVNPage34of93Rev: May 2020
Homework Package 6, Chapters 11, 12, & 13Steroid hormones1.The primary action of small, lipid-soluble steroid hormones such as estrogen do not occur bythe second-messenger mechanism, because: they are lipid solubleK Rowe LVNPage35of93Rev: May 2020
Homework Package 6, Chapters 11, 12, & 13The gland/hormones are listed, give the function and dysfunction for each(Table 12-1)Gland/HormoneAnterior Pituitary GlandFunctionDysfunctionThyroid Stmulatng Hormone(TSH)Tropic hormoneStmulates secreton of thyroidhormonesHypersecreton: overstmulatonof thyroidHyposecreton: understmulatonof thyroidAdrenocortcotropic hormone(ACTH)Tropic hormoneStmulates secreton of adrenalcortexHypersecreton: overstmulatonof adrenal cortex hormonesFollicle-Stmulatng Hormone(FSH)Tropic hormoneFemale: stmulates developmentof ovarian follicles and secretonof estrogensMale:stmulates seminiferoustubules of testes to grow andproduce spermHyposecreton: understmulatonof adrenal cortex hormonesHyposecreton: lack of sexualdevelopment and sterilityLuteinizing Hormone (LH)Tropic hormoneFemale: stmulates maturaton ofovarian follicle and ovum;stmulates secreton of estrogen;triggers ovulaton; stmulatesdevelopment of corpus luteumMale: stmulates intersttal cellsof the testes to secretetestosteroneHyposecreton: lack of sexualdevelopment and sterilityGrowth Hormone (GH)Stmulates growth in all organs;mobilizes nutrient molecules,causing an increase in bloodglucose concentratonHypersecreton: gigantsm;acromegalyHyposecreton: dwarfismProlactn (PRL or lactogenichormone)Stmulates breast developmentduring pregnancy and milksecreton after pregnancyHypersecreton: inappropriatelactaton in men or non-nursingwomenHyposecreton: insufficientlactaton in nursing womenK Rowe LVNPage36of93Rev: May 2020
Homework Package 6, Chapters 11, 12, & 13The gland/hormones are listed, give the function and dysfunction for each(Table 12-1)Posterior Pituitary GlandFunctionDysfunctionAntdiuretc Hormone (ADH)Stmulates retenton of water bythe kidneysHypersecreton: abnormal waterretentonHyposecreton: diabetesinsipidusOxytocin (OT)Stmulates uterine contractonsat the end of pregnancy;stmulates the release of milkinto the breast ductsHypersecreton: inappropriateejecton of milk in lactatngwomenHyposecreton: prolonged ordifficult labor and deliveryThe gland/hormones are listed, give the function and dysfunction for each(Table 12-1)ThyroidFunctionDysfunctionThyroxine (T4) andtriiodothyronine (T3)Stmulate the energy metabolismof all cellsHypersecreton:hyperthyroidism, graves diseaseHyposecreton: hypothyroidism,cretnism; myxedema; goiterCalcitonin (CT)Inhibits the breakdown of bone;causes a decrease in bloodcalcium concentratonHypersecreton: possiblehypocalcemiaHyposecreton: possiblehypercalcemiaThe gland/hormones are listed, give the function and dysfunction for each(Table 12-1)ParathyroidFunctionDysfunctionParathyroid Hormone (PTH)Stmulates the breakdown ofbone; causes a increase in bloodcalcium concentratonHypersecreton: possiblehypercalcemiaHyposecreton: possiblehypocalcemiaK Rowe LVNPage37of93Rev: May 2020
Upload your study docs or become a
Course Hero member to access this document
Upload your study docs or become a
Course Hero member to access this document
End of preview. Want to read all 93 pages?
Upload your study docs or become a
Course Hero member to access this document
Term
Fall
Professor
NGUYEN
Tags
Hyposecreton
