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| - The cardiovascular system is made up of the heart, blood, and blood vessels, and is responsible for transporting nutrients, gases, and wastes to and from cells, aids in fighting disease and helping to stabilize body temperature. The process by which this is all achieved consists of systemic circulation--when oxygenated blood is pumped away from the heart to the body and returns deoxygenated blood back to the heart--and pulmonary circulation--when oxygen-depleted blood is pumped away from the heart to the lungs and returns oxygenated blood back to the heart.
- The circulatory system is an organ system that transports nutrients (such as amino acids and electrolytes), gases, hormones, blood cells, nitrogen waste products, etc. to and from cells in the body to help fight diseases and help stabilize body temperature and pH to maintain homeostasis. This system may be seen strictly as a blood distribution network, but some consider the circulatory system as composed of the cardiovascular system, which distributes blood, and the lymphatic system, which distributes lymph. While humans, as well as other vertebrates, have a closed cardiovascular system (meaning that the blood never leaves the network of arteries, veins and capillaries), some invertebrate groups have an open cardiovascular system. The most primitive animal phyla lack circulatory system. Th
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| abstract
| - The circulatory system is an organ system that transports nutrients (such as amino acids and electrolytes), gases, hormones, blood cells, nitrogen waste products, etc. to and from cells in the body to help fight diseases and help stabilize body temperature and pH to maintain homeostasis. This system may be seen strictly as a blood distribution network, but some consider the circulatory system as composed of the cardiovascular system, which distributes blood, and the lymphatic system, which distributes lymph. While humans, as well as other vertebrates, have a closed cardiovascular system (meaning that the blood never leaves the network of arteries, veins and capillaries), some invertebrate groups have an open cardiovascular system. The most primitive animal phyla lack circulatory system. The lymphatic system, on the other hand, is an open system. The main components of the human circulatory system are the heart, the blood, and the blood vessels. The circulatory system includes: the pulmonary circulation, a "loop" through the lungs where blood is oxygenated; and the systemic circulation, a "loop" through the rest of the body to provide oxygenated blood. An average adult contains five to six quarts (roughly 4.7 to 5.7 liters) of blood, which consists of plasma, red blood cells, white blood cells, and platelets. Also, the digestive system works with the circulatory system to provide the nutrients the system needs to keep the heart pumping. Two types of fluids move through the circulatory system: blood and lymph. The blood, heart, and blood vessels form the cardiovascular system. The lymph, lymph nodes, and lymph vessels form the lymphatic system. The cardiovascular system and the lymphatic system collectively make up the circulatory system.
- The cardiovascular system is made up of the heart, blood, and blood vessels, and is responsible for transporting nutrients, gases, and wastes to and from cells, aids in fighting disease and helping to stabilize body temperature. The process by which this is all achieved consists of systemic circulation--when oxygenated blood is pumped away from the heart to the body and returns deoxygenated blood back to the heart--and pulmonary circulation--when oxygen-depleted blood is pumped away from the heart to the lungs and returns oxygenated blood back to the heart.
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