Problem 11
Which heart chamber has the thickest wall? a. right atrium c. left atrium b. right ventricle d. left ventricle
Problem 12
A pulmonary ______ carries oxygen-poor blood. a. artery b. vein
Problem 13
Lymph nodes filter _________. a. blood c. plasma b. lymph d. all of the above
Problem 14
Which is more dangerous? a. atrial fibrillation b. ventricular fibrillation
Problem 15
Match the terms with their descriptions. ____capillary ____ lymph node ____atrium ____ventride ____SA node ____vein ____ aorta a. filters out pathogens b. cardiac pacemaker c. blood vessel with valves d. largest artery e. receives blood from veins \(\mathrm{f}\). exchange site \(\mathrm{g}\). receives blood from atrium
