Related Experiment Videos
[Anatomical observation on the external nasal arteries]
1Plastic Surgery Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing.
Zhonghua Zheng Xing Shao Shang Wai Ke Za Zhi = Zhonghua Zheng Xing Shao Shang Waikf [I.E. Waike] Zazhi = Chinese Journal of Plastic Surgery and Burns
|July 1, 1996
Summary
This study maps external nose arteries, finding most originate from the facial artery. This reveals a dual blood supply to the nasal tip and columella, potentially vital even after carotid artery ligation.
Area of Science:
- Anatomy
- Vascular Anatomy
- Head and Neck Anatomy
Context:
- Detailed anatomical knowledge of the external nose's vascular supply is crucial for surgical procedures.
- Previous studies have not fully elucidated the intricate branching patterns and anastomoses of the external nasal arteries.
Purpose:
- To anatomically investigate the arteries supplying the external nose in adult cadavers.
- To identify the primary source vessels and describe the distribution patterns of these arteries.
- To explore potential anastomoses between different arterial systems supplying the nasal region.
Summary:
- Anatomical dissection of 16 adult cadavers identified key external nasal arteries, including the dorsal nasal, lateral nasal, naso-alar, lower naso-alar marginal, and nasoseptal arteries.
- Eighty-five percent of these arteries originated from the facial artery.
- The study observed a distinct circular distribution of arteries around the nostril, suggesting a dual blood supply to the nasal tip and columella.
Impact:
- The findings suggest a potential for a two-way blood supply on the nasal tip and columella, with possible anastomoses between internal and external carotid artery circulations.
- This detailed vascular mapping provides critical anatomical data for rhinoplasty, nasal reconstruction, and managing epistaxis.
- Understanding these vascular patterns may explain circulatory resilience in the nasal tip even after carotid artery ligation.