Pulse of Physiology

Break down how total body water is distributed between the intracellular fluid (ICF) and extracellular fluid (ECF) compartments. Learn about solute concentrations, fluid movement, and the importance o...

7 Apr 20253min

Explore how the sympathetic nervous system, RAAS, ADH, and natriuretic peptides regulate GFR in response to systemic blood pressure and volume changes, ensuring whole-body fluid and pressure homeostas...

7 Apr 20256min

Understand how the kidneys regulate their own filtration rate using the myogenic mechanism and tubuloglomerular feedback, maintaining stable GFR despite changes in blood pressure.

2 Apr 20254min

Learn how GFR is calculated using Starling forces, how arteriole diameter affects filtration, and why GFR is a key measure of kidney function and fluid balance.

2 Apr 20255min

Discover how different parts of the nephron contribute to urine formation and how osmolarity changes throughout. Learn how countercurrent mechanisms create and preserve the medullary concentration gra...

31 Mar 20254min

Review the major functions of the urinary system, including waste excretion, fluid and electrolyte balance, and blood pressure regulation. Understand the differences between plasma, filtrate, and urin...

31 Mar 20254min

Explore how hydrostatic and oncotic pressures regulate capillary exchange. Learn how net filtration pressure (NFP) drives fluid in or out of capillaries and how the lymphatic system prevents edema by ...

31 Mar 20255min

Understand how local control mechanisms adjust blood flow to match tissue demand. Explore metabolic and myogenic responses, precapillary sphincters, and the balance between vasodilation and vasoconstr...

28 Mar 20254min