Which structure is attached to the chordae tendinae?

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Prepare for the Ivy Tech Anatomy and Physiology II (APHY 102) Heart Test with multiple-choice questions, detailed explanations, and study resources. Enhance your understanding and excel in your exam!

Multiple Choice

Which structure is attached to the chordae tendinae?

Explanation:
Chordae tendineae are tethering cords that connect the valve leaflets of the atrioventricular valves to the papillary muscles in the ventricles. This connection is crucial because, when the ventricle contracts, the papillary muscles also contract and pull on the chordae to tense the leaflets. That tension prevents the leaflets from bulging backward into the atria (prolapse) and helps keep blood flowing in the correct direction, producing one-way circulation. The papillary muscles are the structures really attached to the chordae; the other options describe parts of the heart that are not linked by these tendinous cords.

Chordae tendineae are tethering cords that connect the valve leaflets of the atrioventricular valves to the papillary muscles in the ventricles. This connection is crucial because, when the ventricle contracts, the papillary muscles also contract and pull on the chordae to tense the leaflets. That tension prevents the leaflets from bulging backward into the atria (prolapse) and helps keep blood flowing in the correct direction, producing one-way circulation. The papillary muscles are the structures really attached to the chordae; the other options describe parts of the heart that are not linked by these tendinous cords.

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