from The Century Dictionary and Cyclopedia
- n. Plural of pectinatus.
Sorry, no etymologies found.
Behind the crest the internal surface of the atrium is smooth, while in front of it the muscular fibers of the wall are raised into parallel ridges resembling the teeth of a comb, and hence named the musculi pectinati.
The musculi pectinati, fewer and smaller than in the right auricula, are confined to the inner surface of the auricula.