Respiratory System
The Pluck
The Trachea is smooth, soft, strong and bumpy where the cartiliage is supporting the wind pipe to stop it from collapsing, this is what transports the air you breathe in. The lungs are also quite smooth and fleshy. The top of the lungs are red and the bottom is more pink (see figure2).The heart connects to the lungs through the pulmonary artery which carries deoxygenated blood to the lungs and and pulmomary vein carries oxygenated blood back to the heart. Your diaphram controls your breathing by contracting to make you inhale and relaxing to make you exhale. This causes the lungs to inflate and deflate and also makes the fibs open up and move in with the lungs. For labelled diagram see figure1 |