Cardiovascular System + Fluids

In this episode, we focus on the cardiovascular system and its connection to fluid mechanics. Beginning with an exploration of cardiovascular anatomy, the discussion covers various aspects of the heart: its function, contraction mechanism, the diverse cell types found within it, and its essential role in regulating blood pressure. 

Finally, in the latter part of the episode, several fluid mechanics topics pertinent to the MCAT and their application to the cardiovascular system are addressed. These include total peripheral resistance, viscosity, the continuity equation, and the Bernoulli equation, offering insights into their relevance in understanding cardiovascular dynamics.

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[00:00] Intro

[02:32] Circulatory system overview

[08:48] Blood's journey from the heart through systematic circulation

[11:49] The reason the heart needs one-way valves

[15:14] The path of blood flow through the body

[16:52] Function of the heart

[22:21] QRS complex

[24:24] Cells that make up the heart

[28:33] Hormonal control of blood pressure and its relationship to the heart

[40:39] Application of physics fluids to cardiovascular system

[43:31] Peripheral resistance

[48:38] Viscosity 

[51:54] Continuity equation

[55:02] Bernoulli equation