Respiration

Berries help in making our lungs better

Epiglottis acts a a doorway to the pharynx, if we open or mouth during eating, chances are that the food can enter the pharynx instead of the oesophagus, thus causing difficulty in breathing.

plasma - 55% ; Other cells 45%

Human HEART Located in the center of thoracic cavatiy, tilted towards the left. heart is a pumping organ which pushes blood around the body has a network of blood vessels which provides blood to all tissues

Flow of blood in heart Deoxygenated blood enters through The vena cava into the Right auricle from the body, the tricuspid valves open and pumps blood to the right ventricle, the ventricle then pumps this blood to the lungs via pulmonary artery. this cycle is known as pulmonary circulation  Oxygenated Blood from the lungs which is purified enters the left auricle via pulmonary vein. when right auricle fills up, the bicuspid valves open and the blood flows to the right ventricle which pumps blood to the whole body via Aorta. this cycle is known as systemic cycle