Cardiac Layers (Heart Walls)
Adipose tissue is the thickest at the _______________________________
Ventricular Surfaces
Adipose tissue houses and protects the ____________________ and ________________________
Major Cornoary and Cardiac Vessels
Makes up 95% of the heart wall
Myocardium
Muscle layer of the heart
Myocardium
The muscle fiber cells of the ____________________________ are wrapped and bundled with sheaths
Myocardium
Which layer of the heart is responsible for the pumping action of the heart?
Myocardium
The bundles of the ______________________________ are organized ______________________ around the heart, which leads to a strong pumping action and the appearance of a __________________ motion when the heart beats
Myocardium; Diagonally; Torquing
The _________________________ is striated like skeletal muscle, but is cardiac muscle so it's therefore, _____________________________
Myocardium; involuntary
Which vessels feed the heart?
Coronary and Cardiac
Inner layer of the heart
Endocardium
The smooth lining of the chambers of the heart
Endocardium
This layer of the heart covers the valves of the heart
Endocardium
The _____________________ is continuous with the ___________________________ _______________________ of the large blood vessels attached to the heart
Endocardium; endothelial lining
Composed of mesothelium covering a variable layer of delicate fibroelastic tissue and adipose
Epicardium
Contains blood vessels and lymphatics that supply the myocardium
Epicardium
Outer layer of the heart
Epicardium
Visceral layer of the serous pericardium
Epicardium
What are the three layers of the heart external to internal
Epicardium; Myocardium; Endocardium