To discuss:
Mechanisms of the action by angiotensin II, aldosterone, natriuretic peptides, antidiuretic hormone, epinephrine, and norepinephrine on the blood pressure.
Introduction:
The vasoconstriction and vasodilation are collectively called as vasomotion. The narrowing of the vessel is called as vasoconstriction, and it occurs by contraction of smooth muscle in the tunica media. The widening of the vessel in vasodilation is by muscular passivity rather than muscular effort. The smooth muscles get relaxed, and the blood pressure allows the vessel to expand. The vasomotor center of the brain controls the vasomotion.
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Chapter 20 Solutions
LSC (CONCORDIA UNIV ST PAUL) BIO 315/316: B&N DPF Connect with APR and Phils Online Access for Anatomy and Physiology: The Unity of Form and Function 180 Day Access ENTRP
- Define renin-angiotensin-aldosterone mechanismarrow_forwardPhysiology of angiotensin II in humans Angiotensin I is enzymatically converted to angiotensin II by ACE. Angiotensinogen II acts on the adrenal cortex to cause the release of storage vesicles containing aldosterone. Angiotensin II is a peptide hormone that is made in advance and stored in vesicles. Physiology of angiotensin II in humans Question 24 options: Angiotensin I is enzymatically converted to angiotensin II by ACE. Angiotensinogen II acts on the adrenal cortex to cause the release of storage vesicles containing aldosterone. Angiotensin II is a peptide hormone that is made in advance and stored in vesicles.arrow_forwardBriefly explain the Renin-angiotensin mechanism indicating the treatment or drug target sites of hypertensive patients in regulating blood pressure.arrow_forward
- List the four primary effects of angiotensin II.arrow_forwardActions of ACE inhibitors in hypertension and heart failure include all the following EXCEPT Decrease angiotensin ilves Decrease peripheral resistance Decrease bradykinin levels Decrease rease of aldosteronearrow_forwardDescribe how ANP is regulated and how it opposes the action of the other three hormones (angiotensin II, ADH, and aldosterone).arrow_forward
- For each of the following hormones, describe their effect/s on the circulatory system: Epinephrine, Renin, Angiotensin II, Aldosterone, ADH, and ANParrow_forwardDescribe at least two mechanisms by which angiotensin II targets the kidneys to increase extracellular fluid volume and, therefore, increase blood pressure.arrow_forwardDifferentiate the mechanism of action of Angiotensin Receptor Blockers and Angiotensin Converting Enzyme Inhibitorsarrow_forward
- Give the steps in the renin angiotensin pathway from start to finish.arrow_forwardExplain the steps of renin conversion to angiotensin II that take place once renin is secreted into the blood. Be specific and don’t use abbreviationsarrow_forwardDuring treatment of congestive heart failure and hypertension, describe the mechanism of action and major side effects of loop diuretics, ACE inhibitors, blockers, and Ca2+ channel blockers.arrow_forward
- Anatomy & PhysiologyBiologyISBN:9781938168130Author:Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark WomblePublisher:OpenStax CollegeHuman Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage LearningUnderstanding Health Insurance: A Guide to Billin...Health & NutritionISBN:9781337679480Author:GREENPublisher:Cengage
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