CARDIOVASCULAR SYSTEM . BY: Erica Wooten. What is the Cardiovascular System?.
BY: Erica Wooten
The cardiovascular system is responsible for transporting blood throughout the body. It is one of the major body systems that makes sure that the muscles and bones are supplied with the proper amount of oxygen and blood.
With each heartbeat, blood is sent throughout our bodies, carrying oxygen and nutrients to every cell. The heart is the key organ in the circulatory system. As a hollow, muscular pump, its main function is to propel blood throughout the body. Its also different kind of muscle than those that move the skeleton. It has four
chambers, the two atria and the two ventricles. It is really like two pumps in one
Blood is consisting of liquid plasma and cells. It carries oxygen oxygen to other parts of the body. The average human body contains about 4 to 5 liters of blood. As a liquid connective tissue, it transports many substances through the body and helps to maintain homeostasis of nutrients, wastes, and gases
There are three types of vessels - arteries, veins, and capillaries. The blood vessels are responsible in transporting blood throughout the body which contains the oxygen. This allows the boy to stay alive.
First, homeostasis is the deposition of living to keep on functioning at an optimum level, despite changes in the enviormentwithin certain limits. Or in other words, the process by which the body attempts to maintain a state of stable physiological balance. The body needs to maintain homeostasis in order to stay alive. It maintains homeostasis by carrying nutrients to your cells and removing their wastes. It also helps by carrying hormones throughout the body. Without the cardiovascular system, none of the other systems in the body can function.
How do the cardiovascular and respiratory systems work together? The heart is where circulation and cooperation between the respiratory and the cardiovascular systems begin. The heart has two ventricles and two atria. The right ventricle and atrium are where blood is received from the veins. Deoxygenated blood flows into the right atrium of the heart. When the heart muscle relaxes, the blood is released from the atrium and into the right ventricle. The right ventricle then pushes the blood through the pulmonary valve and into the pulmonary artery, where the blood is delivered to the lungs for retrieval of oxygen. The blood is then returned to the left side of the heart. As on the right side, the left atrium receives the blood and sends it to the ventricle when the heart muscle relaxes. Finally, the blood is pushed to the aorta and delivered to the rest of the body.
Thermoregulation is a homeostatic function that enables you to maintain this core temperature independent of how hot or cold your surroundings are. The main organ involved is the skin, which is controlled by the autonomic nervous system. When your surroundings heat up, the brain triggers a series of chemicals which tell your blood vessels to dilate (widen), which brings in the cardiovascular system.