Cardiovascular system - Made up of 3 main parts. Main functions are transportation, homeostasis, and protection., Blood - Made up of many components. Main functions of these are transportation, haemostasis, homeostasis and protection., Homeostasis - The body's ability to maintain a stable internal environment, despite external fluctuations, Haemostasis - Physiological process of stopping bleeding and maintaining the integrity of the circulatory system after an injury or damage to blood vessels., Atria - Upper chambers where blood collects when it enters the heart, Ventricles - Lower chambers where deoxygenated blood is pumped to the lungs (right) and oxygenated blood is pumped to the body (left), Septum - Muscular tissue “wall” separating the right and left ventricles, Vena Cava - The largest vein in the body. Carries deoxygenated blood from the body back to the heart., Pulmonary vein - Veins carry deoxygenated blood, this is the exception and returns oxygenated blood from the lungs., Arteries - They have thick, elastic muscular walls and a narrow lumen – helps to withstand blood flowing at high pressure and maintain the pressure preventing back flow, Veins - They have thin walls and a wide lumen offering less resistance to blood flow. Pressure isn’t as high., Capillaries - They have very thin walls that are only one cell thick and semi-permeable. They have a very small lumen (one blood cell at a time)., Vasoconstriction - Triggered in response to low body temperature., Vasodilation - Triggered in response to high body temperature.,

Structure and function of the cardiovascular system

by
Print
Embed

Leaderboard

Visual style

Options

Switch template

Continue editing: ?