Muscular ridges on the inner surface of the ventricles are called

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The muscular ridges on the inner surface of the ventricles are known as trabeculae carneae. Choice A, coronary sinuses, refers to a group of veins that drain blood from the heart. Choice D, papillary muscles, are small muscles that attach to the chordae tendineae and help to prevent the prolapse of the atrioventricular valves during ventricular contractions. Choice E, chordae tendineae, are fibrous strings that connect the papillary muscles to the atrioventricular valves. Choice C, intercalated discs, are specialized cell-to-cell connections found in cardiac muscle that allow for synchronized contraction.

Muscular Ridges on the Inner Surface of the Ventricles Are