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Blood is supplied to the myocardium by means of what arteries?
the coronary arteries
Why does the myocardium receives it blood from coronary arteries and not from the cardiac chambers?
Myocardium is a type of muscle tissue. The reason why the myocardium receives its blood from coronary arteries and not from the cardiac chambers is because the blood from the cardiac chambers does not contain oxygen and nutrients.
What is the definition of myocardium?
"Myo-" means muscle and "-cardium" means heart. So myocardium is heart muscle. It's the stuff that actually does the work of contracting the heart to pump blood around.
Trace the pathway of a drop of blood from the myocardium of the heart to the arm?
The myocardium does not have blood flow to the arm. The myocardium is the muscle of the heart and therefore only supplies blood to the heart.
Which coronary artery supplies blood to the inferior myocardium?
The Right Coronary Artery supplies blood to the inferior myocardium
What is subendocardium?
There don't seem to be a lot of good definitions of "subendocardium" but most references describe the subendocardial layer as that supplied by the coronary arteries deep in the myocardium. Literally, it means below the endocardium so presumably is the portion of the myocardium closest to the endocadium, which is incidentally the region most likely to be affected by myocardial infarction due to the decreased cardiac blood supply in this area.
What layer of the heart actually pumps blood?
The myocardium (middle layer) has the bulk of the muscle which pumps blood from the ventricles.
Where does blood enter the myocardium?
Oxygenated blood is brought to the myocardium by coronary arteries. These arteries are located all around he surface of the heart.
When the myocardium does not receive enough blood?
Infarction
Which provide blood to the myocardium?
Coronary arteries
What does myocardium receive it's blood supply directly from?
The myocardium receives blood from the coronary arteries.
Myocardium is made of?
The myocardium is the middle layer of the walls of the heart, made of cardiac muscle, that contracts to push out blood.
