The red blood corpuscles have a pigment called hemoglobin that binds to the oxygen and carries it to the whole body in both the conditions, when the body is at rest or when the body is exercising. The oxygenated blood from the heart is carried to the various parts of the body and the de-oxygenated blood from various parts of the body is carried to the lungs where the exchange of gases takes place.
Cartilage connects the sternum and ribs. There are 7 true ribs, 3 false ribs, and 2 floating ribs. They are all connec ted to the sternum using cartilage.
