Human Body Systems Overview (Updated 2024)

@drbahaadmourInside the Heart | Blood Leaves and Remains 🔄🫀 ────────── Your heart does not empty completely with every beat. 🔬 The left ventricular ejection fraction, or LVEF, measures how much blood the left ventricle pumps out during contraction. For example, an LVEF of 64% means the left ventricle ejects 64% of the blood volume it contains at the end of filling, while about 36% remains inside before the next heartbeat refills it. A value of 64% is within the usual normal range. Blood then

Everything you learned about the biceps in anatomy class is only half the story. 💪 Traditional anatomy teaches you where a muscle is. Functional anatomy teaches you what it actually does when your body is moving in the real world — and those two things aren't always the same. Classic textbooks describe the biceps brachii simply: it flexes the elbow and supinates the forearm. But fix the hand in place — like when you're climbing, pushing, or holding onto something — and that same muscle complete

Cigarette and Mandarin Orange: What Happens Inside Your Body? | Human Body Effects Explained