Musculi pectinati
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| Musculi pectinati | |
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| Section of the heart showing the ventricular septum. (Musculi pectinati labeled at center left.) | |
| Latin | musculi pectinati atrii dextri, musculi pectinati atrii sinistri |
| Gray's | subject #138 529 |
| Dorlands/Elsevier | m_22/12550106 |
In the right atrium, 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 (pectinate muscles).
In the left atrium, the musculi pectinati, fewer and smaller than in the right auricula, are confined to the inner surface of the auricula.
[edit] External links
- GPnotebook -2066743237
- Photo at luc.edu
- SUNY Labs 20:13-0104
- Atlas of anatomy at UMich ht_rt_atrium - "Right atrium, internal structure, anterior view"
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This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.
