Could you explain the blood flow through the heart?
Deoxygenated blood enters through the right atrium from vena cava, moves through tricuspid valve into right ventricle. This moves up the pulmonary artery to the lungs and oxygenates.Oxygenated blood enters left atrium from pulmonary veins, moves through mitral valve (bicuspid valve) into left ventricle.This moves up the aorta to supply blood to the rest of the body.
NV
Related Biology GCSE answers
All answers ▸Gas exchange happens in the alveoli of the lungs. What are three adaptations of the alveoli that allow for this?
What organelles can be found in a plant cell but not an animal cell?
Describe how phagocytic white blood cells destroy bacteria. (4)
What's the difference between diffusion and osmosis?