EXERCISES, LESSON 1
INSTRUCTIONS: Follow the special instructions for Exercise 1. In Exercises 2 through 10, circle the letter of the response that BEST completes the statement or BEST answers the question. After you have completed the exercises, turn to “Solutions to Exercises” at the end of the lesson exercises and check your answers. For each exercise answered incorrectly, reread the material referenced with the solution.
1. Special Instructions. Trace the flow of blood through the body’s blood circulatory system beginning when the blood leaves the left ventricle by numbering the following statements in the sequence in which they occur.
a. ___Blood flows from the vena cava into the right atrium.
b. ___Blood enters capillaries of the systemic system.
c. ___Blood pumped into pulmonary artery.
d. _1_Blood pumped into the aorta.
e. ___Blood gives up carbon dioxide and picks up oxygen.
f. ___Blood enters veins of the systemic system.
g. ___Blood flows through the smaller arteries of the systemic system.
h. ___Blood enters veins of the pulmonary system.
i. ___Blood flows into right ventricle.
j. ___Blood enters capillaries of the pulmonary system.
k. _13_Blood enters left ventricle.
l. ___Blood gives up oxygen and nutrients; picks up waste products.
m. ___Blood enters left atrium.
2. The actual muscle layer of the heart is the:
a. Endocardium.
b. Myocardium.
c. Pericardium.
3. You are examining a casualty. He is perspiring heavily and complains of having a headache. Which of the following is correct?
a. The heavy perspiration is a sign and the headache is a symptom.
b. The heavy perspiration is a symptom and the headache is a sign.
c. The heavy perspiration and the headache are both signs.
d. The heavy perspiration and the headache are both signs.
4. The blood performs what vital function(s)?
a. Transports oxygen from the lungs to the cells of the body.
b. Transports nutrients from the digestive system to the cells of the body.
c. Transports waste materials from the cells of the body to the lungs and kidneys.
d. All of the above.
5. The chambers of the heart that pump blood into the arteries are the:
a. Atria.
b. Pulmonary and aortic valves.
c. Vena cava.
d. Ventricles.
6. The small air sacs in which oxygen travels from inside the sac to the blood and carbon dioxide travels from the blood to the inside sac are the:
a. Alveoli.
b. Bronchi.
c. Capillaries
d. Larynx.
7. The cells of the blood that carry oxygen are the :
a. Erythrocytes.
b. Leukocytes.
c. Lymphocytes.
d. Thrombocytes.
8. In an adult, a breathing rate of breaths per minute is considered to be normal.
a. 5 to 7.
b. 12 to 20.
c. 32 to 45.
d. 55 to 70.
9. You are breathing normally. When you exhale, you expel:
a. All of the air in your lungs.
b. About 80 percent of the air in your lungs.
c. Slightly over 50 percent of the air in your lungs.
d. About 20 percent of the air in your lungs.
10. What is the primary purpose of the tricuspid and mitral heart valves?
a. They prevent blood flowing between the ventricles.
b. They prevent blood flowing between the atria.
c. They prevent blood flowing from the ventricles into the atria.
d. They prevent blood flowing from the arteries into the ventricles.
SOLUTIONS TO EXERCISES, LESSON 1
1.
a. 6
b. 3
c. 8
d. (1) given
e. 10
f. 5
g. 2
h. 11
i. 7
j. 9
k. (13) given
l. 4
m. 12 (para 1-4)
2. b (para 1-3a(1)(a))
3. a (paras 1-1d, e)
4. d (para 1-2)
5. d (para 1-3a(2))
6. a (para 1-5h)
7. a (para 1-3c(2))
8. b (para 1-6)
9. d (para 1-5)
10. c (paras 1-4b, e)