Giraffe Flehmen Response: How Males Detect Female Estrus

1/4 : explication de tous les organes les plus inutiles #pourtoi #nombril

Pulling Out All the Stops on the Pipe Organ

Pipe Organ Cover of “Fixxxer” Wins #GetTheReLoadOut Contest

I can’t believe this is happening New Jersey ❤️ | new jersey

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