1. Copyright © by Holt, Rinehart and Winston. All rights reserved. Multiple Choice Draw this chart below and your knowledge of science to answer questions 1–3.

2. Copyright © by Holt, Rinehart and Winston. All rights reserved. 1.A person who consumes 23 g of salt per day is likely to have a systolic pressure of about A.120 mm Hg. B.130 mm Hg. C.140 mm Hg. D.150 mm Hg.

3. Copyright © by Holt, Rinehart and Winston. All rights reserved. 2.People with a normal systolic pressure likely have a daily salt intake that does not exceed A.4 g. B.16 g. C.19 g. D.27 g.

4. Copyright © by Holt, Rinehart and Winston. All rights reserved. 3.What conclusion can be drawn from the chart? A.Increasing one’s salt intake leads to an increased systolic pressure. B.Raising one’s systolic pressure leads to a greater appetite for salt. C.A person can control hypertension by consuming more salt. D.A daily salt intake of 10 g or less is associated with a risk to health.

5. Copyright © by Holt, Rinehart and Winston. All rights reserved. 4.A vessel with a thick layer of smooth muscle and elastic fibers that allow for high pressure and expansion is A.a vein B.an artery C.a capillary D.a venule

6. Copyright © by Holt, Rinehart and Winston. All rights reserved. 5.From which of the following does the right atrium receive blood? a. pulmonary arteries b. pulmonary veins c. aorta d. superior and inferior venae cavae

7. Copyright © by Holt, Rinehart and Winston. All rights reserved. 6.Risk factors for heart disease include all of the following EXCEPT a. high blood pressure. b. high cholesterol levels. c. cigarette smoking. d. regular exercise.

8. Copyright © by Holt, Rinehart and Winston. All rights reserved. 7. The respiratory system consists of which of the following structures and organs? a. kidneys, urinary bladder, and ureters b. brain and spinal cord c. lungs and respiratory passages d. blood, blood vessels, and heart

9. Copyright © by Holt, Rinehart and Winston. All rights reserved. 8. What occurs when the air pressure in the lungs is higher than in the atmosphere? a. inhalation b. the diaphragm contracts c. exhalation d. the rib cage moves up and out

10. Copyright © by Holt, Rinehart and Winston. All rights reserved. 9. The site(s) of gas exchange in the lungs is a. the bronchi. b. the alveoli. c. the bronchioles. d. all of these answers

11. Copyright © by Holt, Rinehart and Winston. All rights reserved. 10. Diseases and disorders of the respiratory system include all of the following EXCEPT a. anemia. b. asthma. c. emphysema. d. lung cancer.

12. Copyright © by Holt, Rinehart and Winston. All rights reserved. 11. Matching 6. diaphragm 7. pharynx 8. alveoli 9. thoracic cavity 10. bronchi d. air sacs in lungs that are surrounded by capillaries a. air passes from the nose into this muscular tube in the upper throat b. the two smaller tubes into which the trachea divides c. muscle at the base of the rib that is involved in respiration e. body cavity in which the lungs are held

13. Copyright © by Holt, Rinehart and Winston. All rights reserved. 1. The ________ in the lungs are the sites of oxygen uptake into the blood. 2. The muscles involved in breathing are the muscles of the ________ and the ________. 3. Oxygen is carried in the blood bound to ________ inside ________ cells. 4. Carbon dioxide is carried in the blood primarily in the form of ________ alveoli rib cage diaphragm hemoglobin red blood bicarbonate ions

14. Copyright © by Holt, Rinehart and Winston. All rights reserved. Free response, practice, try without notes: 12. Write out the sequence of the air into the lungs 13. Write out the sequence of a blood cell (16 steps) through the two cycles of the heart starting with the Right Atrium 14.Identify all the items on the handout, check the web for the answers after school.