Heart Anatomy Quiz
Pericardium- ✅double-walled sac that covers the heart
✅
Fibrous- protects the heart, anchors to surrounding tissues (e.g.
diaphragm)
Serous- ✅touches the heart itself and lines the mediastinum
Parietal-✅lines internal surface of the fibrous pericardium
Visceral-✅part of heart wall (covers myocardium); same as the epicardium
Endocardium-✅layer of squamous endothelium that lines the inside
surface of the heart; very slick and continuous with tunica media in blood
vessels; slick so that blood just slides through the heart
✅
Myocardium- the muscle tissue of the heart, interlace in a spiral pattern
around the heart; heart fibers go in a spiral so that it can narrow;
interspersed with connective tissue (collagen) that acts as an insulator to
e-charge, limiting action potential to specific pathways
✅
Right Atrium- receives blood from the superior vena cava, inferior vena
cava, and coronary sinus (collects blood from cardiac circulation); contains
deoxygenated blood and has the tricuspid valve attached to it
✅
Left Atrium- receives oxygenated blood from the lungs via the pulmonary
veins, send to left ventricle
✅
Right Ventricle- receives blood from right atrium and pumps it to lungs via
the pulmonary artery (left and right branches)
Pericardium- ✅double-walled sac that covers the heart
✅
Fibrous- protects the heart, anchors to surrounding tissues (e.g.
diaphragm)
Serous- ✅touches the heart itself and lines the mediastinum
Parietal-✅lines internal surface of the fibrous pericardium
Visceral-✅part of heart wall (covers myocardium); same as the epicardium
Endocardium-✅layer of squamous endothelium that lines the inside
surface of the heart; very slick and continuous with tunica media in blood
vessels; slick so that blood just slides through the heart
✅
Myocardium- the muscle tissue of the heart, interlace in a spiral pattern
around the heart; heart fibers go in a spiral so that it can narrow;
interspersed with connective tissue (collagen) that acts as an insulator to
e-charge, limiting action potential to specific pathways
✅
Right Atrium- receives blood from the superior vena cava, inferior vena
cava, and coronary sinus (collects blood from cardiac circulation); contains
deoxygenated blood and has the tricuspid valve attached to it
✅
Left Atrium- receives oxygenated blood from the lungs via the pulmonary
veins, send to left ventricle
✅
Right Ventricle- receives blood from right atrium and pumps it to lungs via
the pulmonary artery (left and right branches)
