Your Super Pump: The Heart🫀 @Smart Doctor 👨‍⚕️ - - In this 3D animation, we go inside the left side of the human heart and follow oxygenated blood coming back from the lungs. The red blood enters the left atrium through the pulmonary veins, then passes through the mitral valve into the left ventricle. When the ventricle contracts, the aortic valve opens and the blood is powerfully ejected into the aorta, sending oxygen to the entire body. The valves act like one-way doors, making sure blood al

Ways to lower your blood pressure at home.

A huge queue is growing outside Lifeblood Town Hall as Sydneysiders donate blood in the wake of the Bondi Beach terror attack. O-negative and O-positive blood types are particularly low, with anyone able to give blood urged to book an appointment by calling 13 14 95 or using the Lifeblood app. #bondi #bondibeach #bondishooting #sydney #lifeblood If you need help in a crisis, call Lifeline on 13 11 14. For further information about depression contact beyondblue on 1300 224 636 or talk to your GP,

Watch Plasma Envelope Space Shuttle During Reentry | Incredible Window Footage

Engineer Creates a REAL Plasma Vortex — This Looks Straight Out of Sci-Fi! #techfacts #timetravel