NURS 3220 Lecture Notes - Lecture 24: Distal Convoluted Tubule, Proximal Tubule, Angiotensin-Converting Enzyme
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Pr: heart rate, stroke volume, peripheral resistance. Why: a. baroreceptors in the aortic arch and carotid relay info on bp to the brainstem, b. Acts on baroreceptors to reset them to a lower (cid:498)normal(cid:499) bp: c. stops transmission of baroreceptor signal to the brainstem, a. Blocks beta receptors, slows heart rate, blocks vasoconstriction blood pressure: 2. The renin-angiotensin-aldosterone system (raas: which step is blocked by ace inhibitors, a. Reduced renal blood flow causes juxtaglomerular cells in kidney to release. Renin: b. renin catalyses conversion of angiotensinogen into angiotensin 1, a mild vasoconstrictor, 3. Causes bleeding disorders: c. causes end organ damage, d. causes edema and weight gain. Filtering: smaller particles go through, larger do not, glomerulus, large particles = serum proteins, most go through, water and solutes 180 l per day almost all reabsorbed all serum filtered every 100 min, 2. Reabsorption: solutes (na, cl, k, amino acids, etc. ) reabsorbed actively, water follows, by osmosis, what is osmosis again, 3.
