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15 Cards in this Set
- Front
- Back
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What is the ultimate goal of digestion?
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to break down food into molecules the body can use.
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What are the two methods of breaking down food? Explain.
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Mechanical Digestion : teeth rip and chew
Salivary Amylase: break down starches into sugars. |
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What is the ultimate goal of respiration?
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to bring oxygen from air to the blood stream and return carbon dioxide from blood stream to air.
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Name the three levels of respiration. Explain.
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External: Oxygen and Carbon Dioxide are exchanged between blood and lungs.
Internal: Oxygen and Carbon Dioxide are exchanged between blood and cells. Cellular: cells get energy from oxidation of glucose. |
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What occurs when you inhale?
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Diaphragm down, ribs up and out.
Air pressure in lungs drop, forcing air inward. |
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What occurs when you exhale?
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Diaphragm up, ribs up and out.
Air pressure in lungs drop, forcing air inward. |
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What is the ultimate function of the circulatory system?
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to transport nutrients and oxygen to cells, as well as transporting wastes and carbon dioxide away from cells.
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What is the function of the heart valves?
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to pump oxygen blood from the body to the lungs and the lungs to the body.
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What is the general function of the right side of the heart?
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to pump oxygen poor (and carbon dioxide rich) blood from the body to the lungs.
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What is the general function of the left side of the heart?
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to pump oxygen rich blood from lungs to the body.
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What are the three main cells found in bood?
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red blood cells
white blood cells platelets |
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What is the ultimate function of the nervous system?
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to gather information inside and outside the body.
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What makes up the CNS?
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brain and spinal cord.
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What is the peripheral Nervous system?
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gathers and delivers info.
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What is the ultimate goal of the immune system?
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to fight infectious diseases.
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