HEART ANATOMY 23 of it is on the left side of midline, 1/3 is on the right. Loca
ID: 3475479 • Letter: H
Question
HEART ANATOMY 23 of it is on the left side of midline, 1/3 is on the right. Located in the 2. Size and shape is similar to a 3, weighs approx. Il oz and puimps" 4. Where is the heart located? 5. What are the three main layers of the heart? Describe them. Right Atrium-receiving chamber (from Left Atrium-receiving chamber (from Right Ventricle - discharging chamber (to Left Ventricle-discharging chamber (to ) -the wall between chambers -walls of twisted and whorled cardiac muscle, the layer that actually contracts soh lining of heart chambers (inflammation of this is called endocarditis) -covering sac containing lubricating fluid 1 -pericardium-inner layer (also called epicardium) pericardium -outer layer 2. Valve between right atrium and ventricle 2. (Mitral Valve) between left atrium and ventricle 3, valve = at beginning of aorta valve at beginning of pulmonary arteryExplanation / Answer
Located in the Bony thorax 2/3 of it is on the left side of midline, 1/3 is on the right.
Size and shape is similar to human fist
Weigh approx 11 Oz. and pumps blood.
Where is the heart located?
Medial to the lungs and anterior to the spine inside of bony thorax.
Three main layers of heart
Epicardium: it is the outermost layer of heart and is also called as visceral pericardium.
Myocardium: "myo" means muscles, so myocardium means muscles of cardiac it is the thickest most layer of heart.
Endocardium: is the innermost layer of endothelium.
CHAMBERS
Right atrium- receiving chamber from vena cavae, both superior and inferior
Left Atrium receiving chamber from left and right pulmonary veins
Right ventricle discharging chamber to pulmonary trunk and pulmonary arteries
Left ventricle discharging chamber to Aorta.
Septum: the wall between Chambers
Myocardium: walls of twisted and whorled cardiac muscle, the layer that actually contracts
Endocardium: smooth lining of heart chamber (inflammation of this is called endocarditis)
Pericardium: covering sac containing lubricating fluid
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