MEDICAL
HEART AND PERICARDIUM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A feature of the heart which includes pectinate muscle and described as a pouch-like structure is known as?
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Atriums
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Ventricles
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Aorta
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Auricles
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Explanation:
Detailed explanation-1: -Internal features of the left atrium The auricular surface is also highly trabeculated (as seen in the right atrium) as the left atrial auricle contains all the pectinate muscles found within the left atrium.
Detailed explanation-2: -The pectinate muscle develops a stable and large force of contraction and hence is superior to strips cut from atrial appendage specimens.
Detailed explanation-3: -The auricles of the right and left atrium are prominent anatomic structures of the heart. The anatomic area of the right atrial auricle, which lies in the proximity of the basic rhythm center of the heart, the sinus node, is used for the venous cannulation of the heart before the extracorporeal circulation is entered.
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