Chapter 4, Problem 3.1E

Match the terms with their descriptions. ____capillary a. filters out pathogens ____lymph node b. cardiac pacemaker ____atrium c. blood vessel with valves ____ventricle d. largest artery ____SA node e. receives blood from veins ____vein f. exchange site ____aorta g. receives blood from atrium

Match the terms with their definition. _____ bone marrow a. largest artery _____ spleen b. cardiac pacemaker _____ vitamin K c. source of all blood cells _____ HDL d. inside red blood cells _____ SA node e. carries cholesterol to liver _____ erythropoietin f. hormone made by kidney _____ aorta g. lymphoid organ _____ haemoglobin h. brings blood to left atrium _____ vena cava i. cofactor for clotting factor

The abnormal narrowing of the lumen of a vein is known as _____________________.