Khan Academy

Flow and perfusion (K-A)

Learn how a stethoscope can help determine blood pressure (K-A)

Putting it all together: Pressure, flow, and resistance (K-A)

Activating angiotensin 2 (K-A)

Resistance in a tube (K-A)

ADH effects on blood pressure (K-A)

ADH secretion (K-A)

What is blood pressure? (K-A)

Aldosterone and ADH (K-A)

Layers of a blood vessel (K-A)

Aldosterone raises blood pressure and lowers potassium (K-A)

Pre-capillary sphincters (K-A)

Aldosterone removes acid from the blood (K-A)

Angiotensin 2 raises blood pressure (K-A)

Three types of capillaries (K-A)

General overview of the RAAS system: Cells and hormones (K-A)

Parts of a nephron (K-A)

Arterial elastance (Ea) and afterload (K-A)

Regulation of blood pressure with baroreceptors (K-A)

Arterial elastance (Ea) and preload (K-A)

Renin production in the kidneys (K-A)

Contractility, Ea, and preload effects on PV boxes (K-A)

Getting Ea (arterial elastance) from the PV loop (K-A)

Increasing the heart's force of contraction-video (K-A)

Arteries vs. veins – what's the difference?-video (K-A)