BIOL 153 Study Guide - Trophoblast, Adrenal Gland, Heart Sounds
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Old midterm shit: what is the role of sry antigen in sexual determination, where does fertilization usually occur. In anatomy, the papillary muscles of the heart attach to the cusps of the atrioventricular valves and hence serve to limit the movements of the mitral and tricuspid valves. These muscles contract to tighten the chordae tendineae, which in turn prevent inversion. Ve charged i ions cant bind until oxidation (remove e-), pass through membrane into lumen of follicle as they are oxidized. Iodination of tyrosine: as i2 molecules form, they react with tyrosines that are part of thryoglobulin molecules. Also, elevated levels of progesterone potently reduce the sodium-retaining activity of aldosterone, resulting in natriuresis and a reduction in extracellular fluid volume: outline the role of oxytocin in nursing. The peripheral actions of oxytocin mainly reflect secretion from the pituitary gland. (see oxytocin receptor for more detail on its action. )
