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😮 Blood clots in veins can grow over two feet long — and you might not even feel it happening. DVT (Deep Vein Thrombosis) is a clot that forms in the deep veins, most commonly in the legs or pelvis. And unlike arterial clots — which immediately cut off oxygen-rich blood to tissues — venous clots don't cause that same instant emergency. Here's why: Veins carry deoxygenated blood back to the heart, and the venous system has far more collateral pathways than arteries. So when a clot forms in a dee

Doctor makes the diagnosis! | doctor mike

Here's exactly what happens every time your heart beats 🫀 It starts with an electrical signal from the SA node — your heart's natural pacemaker. That signal tells your atria to contract, pushing blood down into the ventricles. Then the ventricles contract (ventricular systole): 🫀 Right ventricle → pumps deoxygenated blood to the lungs 🫀 Left ventricle → pumps oxygen-rich blood to the rest of your body After that, the heart enters diastole — a brief relaxation where the chambers refill and pre