Cervical Plexus
Bergman's Comprehensive Encyclopedia of Human Anatomic Variation, wiley, ss.1062-1067, 2016
- Yayın Türü: Kitapta Bölüm / Araştırma Kitabı
- Basım Tarihi: 2016
- Doi Numarası: 10.1002/9781118430309.ch90
- Yayınevi: wiley
- Sayfa Sayıları: ss.1062-1067
- Anahtar Kelimeler: accessory nerve, ansa cervicalis, cervical plexus, great auricular nerve, lesser occipital nerve, phrenic nerve, supraclavicular nerves, transverse cervical nerve
- Sağlık Bilimleri Üniversitesi Adresli: Hayır
Özet
The cervical plexus consists of three loops. The first cervical nerve departs from the hypoglossal as the descendens cervicalis or hypoglossi and later contributes to the communicans cervica-lis, which develops from the second and third cervical nerves; this concludes the hypoglossal or cervical loop, the location of which varies. The inferior root of the ansa cervicalis, which is the ramus descendens cervicalis, is formed by the combination of a branch from the second with another from the third cervical ramus. The great auricular nerve can arise solely from the third or from both the third and fourth cervical nerves. An accessory phrenic nerve can also arise from the fifth or fifth and sixth cervical nerves and pass in front of or behind the subclavian vein to join the main trunk of the phrenic nerve at the root of the neck or within the thorax.