This pretty "anatomic" diagram of the human heart looks almost nothing like a real heart, as my BIOS195 (and soon BIOS255) students can attest.The dominant chamber of the heart in size, mass, and function is the left ventricle, which in reality dwarfs the other three chambers. In fact, if one visualizes the heart in its actual dimensions its physiology is easier to understand and remember.
I hope my students carry this lesson with them, as cardiovascular physiology is one thing that every clinician must know COLD (actually, hot--37 degrees C).
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