Veins transport blood to the heart and lungs at low pressure after receiving it from the capillaries. Valves inside the veins keep blood moving in one direction. The human body's arterial system branches out from one main artery, the dorsal aorta. Like veins, arteries have three layers: an outer layer of tissue, an inner layer of epithelial cells and a layer of muscle in between. Arteries deliver oxygenated blood to the capillaries, where the exchange of oxygen and carbon dioxide takes place.
The flow of oxygenated blood to the tissues helps deliver nutrients such as amino acids and electrolytes, water and oxygen. Also, it’s responsible for removing metabolic waste from the cells and disposing of carbon dioxide. The cardiovascular system’s anatomy varies throughout the body and is connected by the arteries, veins, and capillaries. The main organ of the cardiovascular system is the heart. It 's located in the upper torso, chest area, as are some of the body 's major blood vessels.
Although its range is only from 7.35 – 7.45, it is the only range through which chemical reactions in the body can occur. Third, blood is a protective tissue which prevents blood loss through a process called hemostasis which is, “the process by which the body stops blood loss.” Blood has several interesting properties including volume, viscosity, and density. Surprisingly, although blood is man’s life source, an adult’s body only contains
‘’Blood pressure is a measure of the force that your heart uses to pump blood around your body. Blood pressure is measured in millimetres of mercury (mmHg) and is given in two figures: systolic pressure and diastolic pressure’’. (www.nhs.uk/blood pressure). ‘’Systolic blood pressure is each heartbeat cycle when the heart contracts causing a peak in arterial blood pressure called systolic pressure’’ (Walker, R. 2002). The heart pumps blood round a complex route of many vessels.
1. Explain the function of the heart, and the structure of the arteries veins and capillaries The heart is a key muscular organ, and is controlled by the autonomic nervous system. It transports blood to the body’s tissues via the circulatory system; blood provides the body with oxygen, nutrients and also assists in the removal of carbon dioxide and metabolic wastes, hormones are transported throughout the body by plasma. Arteries, arterioles, veins, capillaries and valves, are the blood vessels which are responsible for transporting the blood throughout the body. The arteries are thick walled muscular and elastic, three layered hollow tubes the thickness is needed to cope better with the pressure of blood flowing through the lumen of
The heart is an organ of muscles. It’s necessary to pump blood throughout the body. The heart has four chambers: two atria (left and right) and two ventricles (left and right). The two atria chambers are located at the top of the heart; whereas, the two ventricles are located at the bottom of the heart. The chambers help blood flow smoothly through the heart.
The musculoskeletal system is a complex arrangement of bones, muscles, cartilage, tendons, ligaments, joints, and other connective tissue. This system provides form, support, stability, and movement for the body. It is comprised of two separate systems, the skeletal system and the muscular system. Both of these systems are vital for the body to be able to function properly. For instance, the skeletal system protects and supports the weight of the body’s organs, serves as storage for calcium and phosphorous, and contains critical components for the production of blood.
Heart is a four-chambered muscular pumping organ that divides into atriums and ventricles that are separated by valves to prevent backflow of blood among the compartments (Smeltzer, Bare, Hinkle, & Cheever, 2010). However, heart undergoes two types of circulatory loops in the transportation of blood which are systemic and pulmonary circulation (Taylor, n.d.). Systemic circulation pumps oxygenated blood from heart into all tissues in the body and return the deoxygenated blood back into the heart via vena cava (Taylor, n.d.). On the other hand, pulmonary circulation responsible in the transportation of deoxygenated blood into the lungs for gaseous exchange that results in the return of oxygenated blood into the heart via pulmonary vein (Taylor, n.d.). Another major component of CVS is blood
The circulatory is a system which works along with the cardiovascular system. The main function of the system is the transportation of oxygen throughout the body and the removal of carbon dioxide. In the cardiovascular system the linkage of organs includes the heart, blood vessels and blood. Heart failure is a disease that could develop within the circulatory system. There are numerous ways one can contract this disease which includes, unhealthy eating habits, smoking, excessive amount of sugar within the blood or inflammation of the blood vessel.