The coronary sinus is an important cardiovascular structure

The coronary sinus is an important cardiovascular structure that allows for a pooling of the venous blood at the level of the bone marrow where blood corpuscles are being formed. True False An electrocardiagram tracing reveals PQRST waves as follows: The P & R waves represents the atrial and ventricular depolarization respectively while the T wave represents the ventricular repolarization. Owing to the fact that in a normal cardiac cycle, an atrial repolarization also occurs, why is it true it is not visible in the tracing? it is too faint to be picked up it is masked by the QRS complex the ECG\'s are not sophisticated enough to show it it is not important for the cardiac cycle

Solution

Answer 21:

False.

Reason:

The coronary sinus is a collection of veins joined together to form a large vessel that collects blood from the heart muscle (myocardium). It delivers deoxygenated blood to the right atrium, as do the superior and inferior vena cavae. It is present in all mammals, including humans. But its not related to collection of blood at the level of bone marrow.