LAB FINAL - CARDIAC LAB Flashcards
What are the different layers of the Pericardium?
Fibrous pericardium, Serous pericardium
The fibrous pericardium is the_________ layer and its function is to…
the SUPERFICIAL layer. It prevents over stretching, protects the heart and anchors the heart in the mediastinum
The serous pericardium is the _________ layer and is made up out of the ….
the DEEP layer. It is made out of a parietal layer (which is fused with the fibrous pericardium) and a visceral layer(which is adhered tightly to the surface of the heart)
The Epicardium is made out of …
Mesothelium
Delicate fibroelastic tissue
adipose tissue
The Myocardium is made out of ….
Cardiac muscle tissues and forms 95% of the heart wall
The Endocardium is made out of …
Endothelium
From superficial to deep the layers of the heart are…
Epicardium (aka visceral layer of serous pericardium), Myocardium, Endocardium
What is another name for the tricuspid valve?
Right atrioventricular valve
What is another name for the mitral valve?
left atroventricular valve
What is the difference between the walls of the right and left atria?
the RIGHT atrium contains the pectinate muscles on the anterior wall and a smooth posterior wall. The LEFT atrium has smooth posterior and anterior walls since the pectinate muscles are contained to the left autricle.
What is another name for the aortic valve?
aortic semilunar valve
Why is the left side of the heart larger?
The left side of the heart has to work harder as it pumps blood to the whole body, not just the lungs. Also the pressure to pump blood to the body is greater than the pressure to the lungs.
What is the fibrous skeleton of the heart?
Dense connective tissue, which make up 4 rings (each surrounds a valve). It functions as a structural foundation, as well as an insulator from the electrical currents traveling through the heart.
The left and right ventricles, and the anterior side of the heart get blood supply from…
Anterior interventricular branch (Arterial) and the Great cardiac vein (Venous)
The left atrium and left ventricle get blood supply from …
Circumflex branch (Arterial) and Great cardiac vein (Venous)
