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Midterm 2 Review Outline

Midterm 2 Review Outline - 16:59:00 KNOW LEWS CROSS BRIDGE...

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Midterm 2 Review Outline 30/10/2009 16:59:00 KNOW LEW’S CROSS BRIDGE ANNOTATION ACTIVATED MYOSIN KNOW WHAT M* MEANS WHAT ARE THE SYMPTOMS OF DIABETES INSIPIDUS? Diabetes insupidus causes by 1)drinking too much water 2) inadequate secretion of ADH 3) inadequate ADH action due to a genetic defect in the ADH receptors or aquaporin channels Without proper ADH the collecting ducts are not very permeable to water results in excretion of a large volume of dilute urine. Causes dehydration intense thrist WHAT WOULD BE THE EFFECT ON SKELETAL MUSCLES OF INCREASING CYTOSOLIC CALCIUM causes high muscle tone make it difficult for her muscles to fully relax and contributes to muscle fatigue and pain. WHAT VALVES OPEN AND CLOSE DURING SYSTOLE AND DIASTOLE?- WHAT IS A HEART MURMUR. Name all the organs in the body that secrete lipid soluble hormones Lipid soluble hormones are lipophilic hormones Nonpolar cannot pass through the plasma membrane can gain entry into their target cells Relatively small Are active when taken orally as a pill Steroid hormones o Adrenal cortex secretes corticosteroids (Cortisol and aldosterone) and small amounts of sex steroids o Gonads secrete sex steroids Thyroid hormones composed of 2 derivatives of the amino acid tyrosine bonded together
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o 4 iodine atoms tetraiodothyronine T4 o 3 iodine atoms triiodothyronine T3. o Thyroid gland Hormones Produced in the Anterior Pituitary ACTH adrenocorticotropic hormone o Target tissue adrenal cortex o Principal action stimulates secretion of glucocorticoids o Regulation of secretion stimulated by CRH corticotropin releasing hormone and inhibited by glucocorticoids TSH thyroid stimulating hormones o Target tissue stimulates secretion of thyroid hormones o Regulation stimulated by TRH thyrotropin releasing hormine and inbitited by thyroid hormone GH growth hormone o Target tissue most tissue o Principal action promotes protein synthesis and growth, lipolysis and increased blood glucose o Regulation inhibited by somatostatin and stimulated by growth hormone releasing hormone FSH follicle stimulating hormone o Target gonads o Action promotes gamete production and stimulates estrogen production in females o Regulation stimulated by GnRH gonadotropin releasing hormone, inhibited by sex steroids and inhibin PRL prolactin o Target mammary glands and other sex organs
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o Action promotes milk production in lactating females and additional actions in other organs o Regulation inhibited by PIH prolactin inhibiting hormone LH luteinizing hormone o Target gonads o Action stimulates sex hormone secretion, ovulation occurs and corpus luteum formation in females, stimulates testosterone secretion in males o Regulation stimulated by GnRh, inhibited by sex steroids Hormones produced in Posterior Pituitary
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