Cardiovascular System - Heart
How do the highlighted valve cusps function during a ventricular contraction? They are held closed by the chordae tendineae to prevent blood from flowing back into the right atrium. They are pushed closed by the papillary muscles to prevent blood from flowing back into the right atrium. They are pulled open by the chordae tendineae to allow blood to flow into the right ventricle. They are pushed open by the increasing blood pressure to allow blood to leave the right ventricle.
They are held closed by the chordae tendineae to prevent blood from flowing back into the right atrium.
Which artery is highlighted? marginal left coronary circumflex anterior interventricular
anterior interventricular
Which artery is highlighted? brachiocephalic trunk left subclavian left common carotid aortic arch
aortic arch
Which vessel is highlighted? ascending aorta inferior vena cava pulmonary trunk superior vena cava
ascending aorta
Which valve is highlighted? bicuspid pulmonary semilunar tricuspid aortic semilunar
bicuspid
Which artery is highlighted? circumflex anterior interventricular right coronary left marginal
circumflex
What type of connective tissue is the highlighted structure composed of? dense irregular reticular dense regular elastic
dense irregular
Which vein is highlighted? small cardiac middle cardiac pulmonary great cardiac
great cardiac
Which vessel is highlighted? coronary sinus right coronary artery superior vena cava inferior vena cava
inferior vena cava
Which structure is highlighted? right auricle left ventricle left auricle right ventricle
left auricle
Which artery is highlighted? left coronary circumflex right marginal left marginal
left marginal
Which structure is highlighted? pericardium myocardium epicardium endocardium
pericardium
Which vessels are highlighted? pulmonary veins right and left coronary arteries superior and inferior vena cava pulmonary arteries
pulmonary veins
The function of the highlighted structure is to prevent backflow of blood into the ________. left atrium left ventricle right atrium right ventricle
right atrium
Which structure is highlighted? left coronary artery posterior interventricular artery right auricle right coronary artery
right coronary artery
Which vessel is highlighted? great cardiac vein right marginal artery anterior interventricular artery right coronary artery
right marginal artery
Which vessel is highlighted? ascending aorta superior vena cava pulmonary vein pulmonary trunk
superior vena cava
Which structure is highlighted? ascending aorta visceral pericardium covering heart pulmonary trunk fibrous pericardium covering heart
visceral pericardium covering heart
