P3 Outline the Gross Structure of All the Main Body System

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1. Cardiovascular System is a complex network of the heart, blood vessels and blood. Its job is to deliver nutrients to the human body and remove excretory products from the body parts, it’s also protects the human body against infections, distribution of heat. At the centre of the cardiovascular system is the heart, a four chambered pump that dispenses blood to the arteries. The arteries carry nutrients and oxygenated blood to the body’s tissues. The veins return de-oxygenated blood to the heart, where the cycle repeats itself continuously. However the blood vessels have a closed type of cardiovascular system in which blood doesn’t come in direct contact with the body tissues. Instead the blood flows in restricted pathways called blood vessels. The blood vessels are pathways of blood flow in the body. There are three main types of blood vessels: Arteries, capillaries and veins. Whatever the blood is a specialised tissue of the human body that exists in fluid form. It’s one of the five basic types of tissues of the body. The blood consists of two major portions: blood cells and plasma. The functions of the cardiovascular system: the cardiovascular system is so important to our body, that if it stops for a minute, rapid death will occur. The flow of blood is necessary for existence of life. If the flow of blood stopped, life will stop. Cardiovascular system has three main functions: Transport of nutrients, oxygen and hormones to cells throughout our body and removal of metabolic wastes such as (carbon dioxide and nitrogenous wastes). Protections of the human body by while blood cells, antibodies and complement proteins that circulate in the blood and defend our body against foreign microbes and toxic. Clotting mechanisms are also present that protect the human body from blood loss after injuries. Regulation of body temperature, fluid pH and water content of

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