PhysioOsteoGram on Instagram: "Breathing and circulation run on the same rhythm. When you inhale, the diaphragm contracts and pulls downward, expanding the lungs. That drop in pressure also increases venous return to the right side of the heart. When you exhale, the diaphragm relaxes, the lungs recoil, and the heartbeat slightly shifts its filling dynamics. Two systems, one synchronized cycle. Credit: @sciepro.official #anatomy #diaphragm #medicalanimation #physiology #anatomy #lungs #smokerslun