The circulatory or cardiovascular system is a closed network of organs and vessels that moves blood around the body figure 1. This system contains two fluids blood and lymph and functions by means of two interacting modes of circulation the cardiovascular system and the lymphatic system.
Circulatory System Anatomy
The circulatory system consists of four major components.
Anatomy of the circulatory system. It lies immediately behind the sternum or breastbone and between the lungs. Your heart works as a pump that pushes blood to the organs tissues and cells of your body. Heart valve movement the four heart valves open and close in response to pressure changes that occur in the ventricles.
To help you learn exactly what you need to know about the circulatory system we built this study guide that is loaded with practice questions. The heart and circulatory system make up your cardiovascular system. At rest the heart pumps about 59 cc 2 oz of blood per beat and 5 l 5 qt per minute.
Anatomy of the heart and cardiovascular system. The heart and circulatory system make up your cardiovascular system. Cardiac volumes blood and blood pressure is also covered.
The human heart is a specialized four chambered muscle that maintains the blood flow in the circulatory system. The circulatory system consists of the heart and blood vessels including arteries arterioles veins and capillaries. The primary purposes of the circulatory system are to deliver nutrients immune factors and oxygen to tissues and to carry away waste products for elimination.
The apex or bottom of the heart is tilted to the left side. Combined with the cardiovascular system the circulatory system helps to fight off disease helps the body maintain a normal body temperature and provides the right chemical balance to provide the bodys homeostasis or state of balance among all its systems. The major blood vessels of the heart consist of large arteries and veins that transport blood to and from the different circulatory systems of the body.
Both the fluid components and the vessels through which they flow reach their greatest elaboration and specialization in the mammalian systems and particularly in the human body. Here are the main functions of the circulatory system. Transport carrying blood water oxygen and nutrients throughout the body and the transport and removal of waste.
Body temperature control the blood absorbs the body heat and carries it to the lungs and to the skin where it is then released. The circulatory system is responsible for transporting oxygenated blood throughout the body. But well discuss more about that below.
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