The auricle is an expandable extension of which heart chamber?

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Multiple Choice

The auricle is an expandable extension of which heart chamber?

The auricle is an expandable extension of the atrium. It’s the atrial appendage, a pouch-like projection that increases the atrium’s capacity to hold blood during filling. This feature helps the atria function as reservoirs and contributes to efficient atrial contraction. It’s present on both right and left atria, while the ventricle, aorta, and valves are different structures, not chambers with ear-like extensions.

The auricle is an expandable extension of the atrium. It’s the atrial appendage, a pouch-like projection that increases the atrium’s capacity to hold blood during filling. This feature helps the atria function as reservoirs and contributes to efficient atrial contraction. It’s present on both right and left atria, while the ventricle, aorta, and valves are different structures, not chambers with ear-like extensions.

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