Unit 5 Assignment 3
The cardiovascular system, also known as the circulatory system, is a system of the body comprised of the heart, the blood, and the blood vessels. This system is responsible for transporting blood. As the cardiovascular system moves blood throughout the body, cells receive oxygen and nutrients. Carbon dioxide and other wastes are removed from the body as well.
Carotid artery The function of this carotid artery is that it carries blood away from the heart. The arteries are made up from blood vessels and these supply blood to the head neck and brain. The artery is on each side of the neck, left and right. Each carotid artery branches into internal and external vessels near the top of the thyroid.
The only important function that the carotid artery has is to carry the blood to the head, neck and brain to supply it with blood. The right hand side and left side carotid arteries both link off. The right side is known as the internal ...view middle of the document...
The left Subclavian artery extends from the aortic arch and goes down to the left side of our body.
Right lung/ Left lung The right lung is responsible for getting the highest amount of oxygen to the bloodstream via alveoli since it is slightly larger. The right lung is separated into three lobes, and air moves in and out of the lobes through a branch of the bronchial tubes. The chest contains two lungs, one lung on the right side of the chest, the other on the left side of the chest. Each lung is made up of sections called lobes. The lung is soft and protected by the ribcage. The purposes of the lungs are to bring oxygen (O2), into the body and to remove carbon dioxide (CO2). Oxygen is a gas that provides us energy while carbon dioxide is a waste product or "exhaust" of the body.
Heart The function of the heart is to pump oxygen around the body. If the heart didn’t pump blood around our bodies we would die. The heart pumps approximately 80,000 to 10,000 a day. In order for the heart to deliver oxygenated blood to all cells, blood is pumped through arteries. Veins bring deoxygenated blood cells to the lungs, which then are oxygenated, and then sent back to heart.
Vena cava The vena cava is the main major vein in the body. The function of the vena cava is to transfer blood from the body back to the heart. It is responsible for bringing it back to the heart in order to pump more blood again.
Aortic artery The aortic artery is also known as the aorta which is the largest artery in the body. The artery carries and distributes oxygen rich blood to all arteries. Most major arteries branch off from the aorta. The walls of the aorta consist of three layers. They are the tunica adventitia, the tunica media, and the tunica intima.
These layers are composed of connective tissue, as well as elastic fibers. These fibers allow the aorta to stretch to prevent over-expansion due to the pressure that is exerted on the walls by blood flow.
Femoral artery and vein The femoral artery is the main artery and the biggest artery in the leg it supplies blood to all of the leg. It also supports the thigh. The femoral vein is the main vein in both legs that returns unoxygenated blood from the feet and legs towards the heart via the superior vena cava.