front 1 The sequence of pericardial layers from superficial to deep is the
fibrous, ________, and | back 1 parietal |
front 2 The right atrium receives blood from the superior vena cava, inferior
vena cava, and | back 2 coronary sinus |
front 3 A heart valve that fails to close properly is considered to be
________ or to exhibit | back 3 incompetent |
front 4 Irregular ridges in the walls of the ventricles are called ________. | back 4 trabeculae carneae |
front 5 The walls of the ________ are thicker so as to push blood through the systemic circuit. | back 5 left ventricle |
front 6 The ________ valve prevents backflow of blood from the left ventricle to the left atrium. | back 6 mitral, left atrioventricular, or bicuspid |
front 7 The atrioventricular valves cannot be inverted because attachment of ________. | back 7 chordae tendineae |
front 8 The first heart sounds of "lub-dup" are produced by the closing of the right and left ________. | back 8 atrioventricular valves |
front 9 The ________ of the heart prevents overdilation of the valve openings. | back 9 cardiac skeleton |
front 10 The ________ are subdivisions of the atrioventricular bundle located
within the upper half of | back 10 bundle branches or crura |
front 11 The ________ artery supplies the left atrium and the posterior part of the left ventricle. | back 11 circumflex artery |
front 12 Gap junctions and fasciae adherens are associated with ________ that
join adjacent cardiac | back 12 intercalated disks |
front 13 Uncoordinated contractions of the ventricle, known as ________,
result from irregularities in | back 13 fibrillation |