Circulatory Systems Flashcards
What are the branches of the aorta
Brachocephalliic, right and left subclavian and right and left common carotid
What accounts for the first and second sounds of the heartbeat
First: closing for the mitral or the tricuspid valves
Second : the closing of the semi-Lunar or the aortic valve
What stops the swing of the valves and would be attached to the valves and the inner papillary muscles
The chordae tendina
What are the papillary muscles
The muscles that would be within the ventricles
They would not surround the outside of the region
They would also prevent leakage through the AV valves during systole
They would connect to the chordae tendia
What is the difference between the Forman’s ovalis and the fossa ovalis
The foremen ovalis would be a hole in the interatrial septum
The fossa ovalis would be a depression in the interatrial septum
What is the point of the right atrium called, that causes the atrium to cone in shape
The conus or the infundibulum
What are the depressions in the ventricles called that would stop the suction of blood as the ventricles pump
The trabeculae carina
Why are the mitral valves different
They would only have two cusps
What are the layers of the heart
Endocardium: most inner layer that would have the simple squamous endothelium and the loos connective tissue
Myocardium: heart muscle that would allow heart contraction
Pericardium: the outer layer.visceral (epicardium) the fibrous and parietal
Remember there would pericardial fluid
Where do the coronary arteries branch from
The base of the ascending aorta
Where do the left and right coronary arteries begin
The left begins posterior
Right begins anterior (round the front of the heart)
What are the Coronary sinuses
Would drain the deoxygenated blood from the myocardium to the right atrium
Where does the right atrium receive blood from
Coronary sinus, superior vena cava and inferior vena cava
what lymph node does the right side of the body drain into
The right lymphatic system
What lymphatic system does the left upper and lower sides drain to
The thoracic system
