Standardized Test Prep

Multiple Choice

1. In the human heart, oxygen-rich blood would be found in the

   1. right atrium and the right ventricle.

   2. right atrium and the left atrium.

   3. left atrium and the left ventricle.

   4. right ventricle and the left ventricle.

2. Which statement BEST describes an interaction between the circulatory system and the respiratory system that helps maintain homeostasis?

   1. Blood plasma transports salts, nutrients, and proteins through the body to keep it healthy.

   2. The diaphragm and rib cage work together to move air into and out of the lungs.

   3. Lymph nodes filter out bacteria that could cause disease.

   4. Blood cells pick up and carry oxygen from the lungs to the body's cells.

3. A heartbeat begins with an impulse from the

   1. nervous system.

   2. sinoatrial node.

   3. atrioventricular node.

   4. aorta.

4. All of the following are components of human blood EXCEPT

   1. plasma.

   2. mucus.

   3. phagocytes.

   4. platelets.

5. Nicotine in tobacco

   1. is not addictive.

   2. lowers blood pressure.

   3. blocks the transport of oxygen.

   4. increases heart rate.

6. Antibodies are produced by

   1. red blood cells.

   2. platelets.

   3. B lymphocytes.

   4. hormones.

Questions 7–10

Use the diagram below to answer the questions that follow.

7. Which structure's primary function is to warm and moisten inhaled air?

   1. 1

   2. 3

   3. 4

   4. 5

8. Which structure contains the vocal cords?

   1. 1

   2. 2

   3. 3

   4. 4

9. Damage to which structure can lead to emphysema?

   1. 2

   2. 3

   3. 4

   4. 5

10. Which structure contains alveoli?

    1. 2

    2. 3

    3. 4

    4. 5

Open-Ended Response

11. Explain why the risk factors for heart disease and strokes are similar.

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