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www.reference.com/science/cardiorespiratory-system-51e02186252080e1

The cardiorespiratory system generally refers to the interaction of the heart, blood vessels, and lungs as they work to take in oxygen for cellular use and remove waste products from the body. Arteries carry fresh oxygen to the body, while veins carry depleted blood back to the lungs to replenish the body's oxygen supply.

www.livestrong.com/article/164894-5-major-functions-of-the-cardiovascular-system

The cardiovascular system, also known as the circulatory system, includes the heart, arteries, veins, capillaries and blood. The heart functions as the pump that moves blood through the body. The arterial circulation delivers blood from the heart to the body, and the venous circulation carries it back to the heart.

www.cliffsnotes.com/.../functions-of-the-cardiovascular-system

The cardiovascular system consists of the heart, blood vessels, and blood. This system has three main functions: Transport of nutrients, oxygen, and hormones to cells throughout the body and removal of metabolic wastes (carbon dioxide, nitrogenous wastes).. Protection of the body by white blood cells, antibodies, and complement proteins that circulate in the blood and defend the body against ...

www.bbc.co.uk/bitesize/guides/zgt2hv4/revision/3

The cardio-respiratory system works together to get oxygen to the working muscles and remove carbon dioxide from the body. During exercise the muscles need more oxygen in order to contract and ...

www.livescience.com/22486-circulatory-system.html

The circulatory system, also known as the cardiovascular system, is a vast network of organs and blood vessels that acts both as a delivery and waste removal system for the body.

www.healthline.com/health/cardiorespiratory-endurance

Cardiorespiratory endurance is the level at which your heart, lungs, and muscles work together when you’re exercising for an extended period of time.

www.bbc.co.uk/bitesize/guides/z9n6sg8/revision/3

The cardiovascular system is made up of three main parts - the heart, the blood vessels and the blood that flows through them. In the heat, blood vessels close to the surface of the skin enlarge ...

study.com/academy/topic/functions-of-the-cardiorespiratory-system.html

Identify the function and physiology of the respiratory system The video lessons in this chapter include visuals and diagrams to strengthen your comprehension of the human cardiorespiratory system.

www.britannica.com/science/human-cardiovascular-system

Human cardiovascular system, organ system that conveys blood through vessels to and from all parts of the body, carrying nutrients and oxygen to tissues and removing carbon dioxide and other wastes. Blood is propelled by the heart, with arteries, capillaries, and veins serving as the major vessels of the system.

www.innerbody.com/image/cardov

The cardiovascular system consists of the heart, blood vessels, and the approximately 5 liters of blood that the blood vessels transport. Responsible for transporting oxygen, nutrients, hormones, and cellular waste products throughout the body, the cardiovascular system is powered by the body’s hardest-working organ — the heart, which is only about the size of a closed fist.