e-Anatomy, the interactive atlas of human anatomy
e-Anatomy is an award-winning interactive atlas of human anatomy. It is the most complete reference of human anatomy available on web, iPad, iPhone and android devices. Explore over 5400 anatomic structures and more than 375 000 translated medical labels. Images in: CT, MRI, Radiographs, Anatomic diagrams and nuclear images. Available in 8 languages.
Behind the terminal 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.
This definition incorporates text from a public domain edition of Gray's Anatomy (20th U.S. edition of Gray's Anatomy of the Human Body, published in 1918 – from http://www.bartleby.com/107/).