Potassium Regulation: Introduction

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Potassium Regulation: Introduction

In this lesson you’ll learn the following: 1) How potassium is distributed throughout the body. 2) The role of potassium in cell physiology. 3) How potassium moves between the intracellular and extracellular compartments. Test your knowledge with a sample quiz: Learn about Potassium Intake and Absorption: [ad_2] Source link

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Calcium Homeostasis: Regulation & Maintenance

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Extracellular calcium is transported throughout the body via the blood vessels. Two primary factors are responsible for stabilizing blood calcium levels: the parathyroid hormone, in short PTH, which forms in the parathyroid glands, and vitamin D, which is synthesized in the liver and skin and converted into its active form, calcitriol, in the kidney. A third regulator is calcitonin, which forms in the thyroid gland. An interactive version of this Chalk Talk episode can be found at: […]

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Prokaryotic Gene Regulation: Lac Operon

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The first fully described genetic regulatory mechanism is the lac operon in E. coli bacteria. Today, it still represents an adequate model for prokaryotic gene regulation. An operon is a transcription unit of genes whose products are required under identical circumstances. So, it facilitates the coordinated expression of multiple genes. Further information can be found under: Subscribe to AMBOSS YouTube for the latest clinical examination videos, medical student interviews, study tips and tricks, and live webinars! Free […]

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Sodium Regulation: Renin-Angiotensin-Aldosterone System (RAAS)

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This lesson explores how the renin-angiotensin-aldosterone system (RAAS) regulates blood pressure (i.e., effective circulating volume). In particular, how effective circulating volume (ECF) is monitored by baroreceptors, how sympathetic activation of granular cells leads to synthesis and release of renin, how renin leads to the formation of angiotensin II, the role of angiotensin II and sodium regulation and blood pressure, how aldosterone stimulates sodium reabsorption along the collecting duct. For help preparing for an exam on this and […]

11 comments aldosterone, angiotensin, aniveo, baroreceptors, eizy, medical school, physiology, pre-med, renal, renal physiology, renin, sodium regulation