Flashcards in Heart Deck (46)
Major function of the cardiovascular system
Delivery route is through the heart...
Transport medium of the heart is through
outermost loose fitting, superficial part of the sac
What is the double sac wall that encloses the heart
What are the roles of the fibrous pericaridum?
Protects the heart, anchors the heart to surrounding structures, prevents overfilling the heart with blood.
Deep to the fibrous pericardium
lines the internal surface of the fibrous pericardium
At the base of the heart the parietal layer reflect back covering the external surface of the heart
Visecreal layer or epipericardium
What two layers make up the serous pericardium?
Partieal layer and visecreal layer
What are the three layers that make up the walls of the heart
epicardium, myocardium, endocardium
The outer layer, which is also the visceral pericardium“upon the heart”
Known as the "heart muscle"
Middle and thickest layer composed mainly of cardiac muscle
Known as the "inside of the heart"
Inner lining that covers the heart valves and is continuous with the inner lining of the great vessels
Continuous with the endothelial lining of blood vessels
How many chambers are in the heart
How are the four chambers of the heart divided?
2 superior atria and 2 inferior ventricles
divides the atria chambers
divides the ventricle chambers
How are chambers of the heart divided ?
Longitudinally by a septum
eceiving chambers and ineffective pumps
Thick wall discharging chambers of the heart
Two visible grooves on the surface indicating boundaries of chambers and carry blood vessels
cornary sulcus and the anterior interventricle sulcus
encircles junction of the atria and ventricles like a crown
what seperates the right and left ventricles
anterior interventricle sulcus
What are the four heart valves
Atrioventricular valves, semilunar valves, Tricuspid valve, mitral valve.
Valve between atrium and ventricle