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

Booktok's Reaction to Oxygen & Flight Attendants

A little bit of oxygen is all I need✨ 🧜‍♂️ @mingfan0 🎥🎨 @freedivewithbeyonce 📷 @sony @seafrogs.com.hk & @gopro #freedivewithbeyonce #freediving #jackfish #balicasagisland

Eat This Every Day to Unclog Your Arteries

I was BARELY able to finish this unit 🌲 #portapotty #satisfyingcleaning #cleantok #bluecollar #closecall

Si tengo los alineadores sucios, ¿qué hago? Iván tenía esta duda y es muy habitual en los pacientes. Hay que cepillarlo con cepillo de dientes y con jabón, no con pasta de dientes. El que mejor va es el Fairy. Si quieres que te asesoremos, ven a nuestra clínica dental en Barcelona, 📍calle Aribau 279, o entra en el link de la bio. #ortodoncista #dentista #higienedental #alineadores