OVERVIEW OF THE IMMUNE SYSTEM
LYMPHATIC TISSUES AND ORGANS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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To heal wounds
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Carry gas, nutrients, and wastes through the body
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Carry oxygen from the lungs to the heart
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Fight off diseases
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Detailed explanation-1: -Blood brings oxygen and nutrients to all the parts of the body so they can keep working. Blood carries carbon dioxide and other waste materials to the lungs, kidneys, and digestive system to be removed from the body. Blood also fights infections, and carries hormones around the body.
Detailed explanation-2: -The carbon dioxide produced during metabolism is carried back to the lungs by the blood, where it is then exhaled (breathed out). Blood also provides the cells with nutrients, transports hormones and removes waste products, which organs such as the liver, the kidneys or the intestine then get rid of.
Detailed explanation-3: -The cardiovascular system is one of the eleven organ systems of the human body. Its main function is to transport nutrients to cells and wastes from cells (Figure 2.12 “Cardiovascular Transportation of Nutrients”). This system consists of the heart, blood, and blood vessels.