ANATOMY OF THE HEART Flashcards
A closed system of the heart and blood vessels
Cardiovascular system
The heart is located in the ___, between the lungs in the inferior mediastinum
Thoracic cavity
directed toward left hip and rests on the diaphragm
Apex
points toward right shoulder
Base
Which ribs is the heart enclosed in?
2nd to 5th rib
The loudest heart sound can be found at the
PMI (point of maximal intensity)
The PMI can be found where?
left midclavicular line, 5th intercostal space
double walled sac that encloses the heart
Pericardium
loosely fitting superficial part; helps protect the heart and anchors it to surrounding structures, such as the diaphragm and sternum
Fibrous pericardium
slippery, two-layer deep into the fibrous pericardium
Serous pericardium
lines the interior of the fibrous pericardium
Parietal pericardium
innermost layer of the pericardium and the outermost layer of the heart wall
Visceral pericardium
Other name for visceral pericardium?
Epicardium
consists of thick bundles of cardiac muscle twisted and whorled into ringlike arrangements; layer that actually contracts
Myocardium
is a thin, glistening sheet of endothelium that lines the heart chambers
Endocardium
Which ventricle forms most of the heart’s anterior surface?
Right ventricle