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| 1 | |
Which of the following is the correct pathway for a drop of blood? |
| | A) | right atrium, right ventricle, body, left atrium, left ventricle, lungs, right atrium |
| | B) | right ventricle, right atrium, body, left ventricle, left atrium, lungs, right ventricle |
| | C) | right atrium, right ventricle, lungs, left atrium, left ventricle, body, right atrium |
| | D) | right ventricle, right atrium, lungs, left ventricle, left atrium, body, right ventricle |
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| 2 | |
The exchange of materials between the outside of a large organism and its interior requires |
| | A) | a circulatory system. |
| | B) | diffusion. |
| | C) | a large surface area. |
| | D) | All of the above are involved. |
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| 3 | |
The part of the lung where gas exchange takes place is the |
| | A) | alveoli. |
| | B) | trachea. |
| | C) | bronchi. |
| | D) | bronchioles. |
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| 4 | |
The structure of ________ provide an example of the human body maximizing surface area for the exchange of materials. |
| | A) | capillaries |
| | B) | alveoli |
| | C) | villi |
| | D) | All of the above. |
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| 5 | |
All of the following are roles played by the lymphatic system EXCEPT |
| | A) | moves fat from the intestinal tract to the blood stream. |
| | B) | transports excess tissue fluid back to the cardiovascular system. |
| | C) | defends against harmful agents such as bacteria and viruses. |
| | D) | responsible for moving nutrients throughout the body. |
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