Which of the following blood cell types is paired with itscorrect function?
| a. | red blood cells (erythrocytes) / transporting oxygen from thelungs to body tissues |
| b. | white blood cells (leukocytes) / defending against foreignpathogens |
| c. | platelets (thrombocytes) / assisting in blood clotting |
| d. | all of these blood cell types are paired with their correctfunction |
Which of the following is the mostcommon human blood type?
| a. | type O blood |
| b. | type A blood |
| c. | type B blood |
| d. | type AB blood |
Which of the following is a function of thepericardium?
| a. | it provides an enclosure within which the heart can expand andcontract |
| b. | it provides a slippery inner lining which minimizes frictionwhen the heart beats |
| c. | it provides protection for the heart |
| d. | all of these are functions of the pericardium |
Contraction of the _____ fills the rightventricle of the heart.
| a. | superior vena cava |
| b. | right atrium |
| c. | pulmonary artery |
| d. | left atrium |
Which of the following statements about bloodvesselsis false?
| a. | arteries convey blood away from the heart toward capillaries |
| b. | arteries branch into arterioles, which branch intocapillaries |
| c. | arteries always convey oxygenated blood |
| d. | veins convey blood toward the heart from capillarie |
Which of the following chambers of the heart pumps blood to thelungs?
| a. | the right atrium |
| b. | the right ventricle |
| c. | the left atrium |
| d. | the left ventricle |
