The Transport System: The Circulatory System

Introduction:

The transport system in our body that carries blood is known as the circulatory system. This system allows the blood to carry essential nutrients such as amino acids, oxygen, and hormones to the cells in all parts of our body to ensure they are able to maintain body temperature and pH known as homeostasis. The oxygen-rich blood enables cellular respiration to occur efficiently which is vital for humans to continue to survive. It also carries cellular waste such as carbon dioxide which is not needed by the body back to the lungs and out to the environment during exhalation. Blood consists of red blood cell to transport oxygen to cells in our body, white blood cell to combat diseases and pathogens, platelets to stop bleeding, and

The right atrium receives deoxygenated blood from all parts of the body while the left atrium receives oxygenated blood from the lungs and also the skin. A frog’s skin is permeable to oxygen and carbon dioxide as well as water and the blood vessels are located near the surface of the skin. When on land, frogs obtain their oxygen supply by breathing through their skin also known as buccal pumping. Both the atria empty into a single ventricle and thus, promoting the fusion of oxygenated and deoxygenated blood. However, the ventricle is divided into narrow chambers to overcome this problem and hence, minimizes the mixture of oxygenated and deoxygenated blood. When the ventricles contract, oxygenated blood from the left atrium travels to the carotid arteries and is transported to the brain while deoxygenated blood from the right atrium is transported to the pulmocutaneous arteries where it travels to the lungs and skin to pick up oxygen. Only blood passing through the aortic arches travels to the rest of the body where the blood content is already mixed but consist sufficient oxygen to go around the entire