variación de la raíz inferior del asa cervical

Translated title of the contribution: Variant inferior root of ansa cervicalis

Research output: Contribution to journalArticle

3 Citations (Scopus)


Ansa cervicalis is a loop of nerves found in the anterior wall of the carotid sheath in the carotid triangle of neck innervating infrahyoid muscles. Its superior root has fibres from the first cervical nerve that leaves the hypoglossal nerve and joins the inferior root formed by the branches from the second and third cervical nerves. The two roots join to form ansa cervicalis. The ansa cervicalis nerve formation is relatively complex, as its course and location along the great vessels of the neck vary. In the present case on the left side of an adult male cadaver the inferior root was absent and the contributions from C2 and C3 were joining independently with the superior root of ansa to form ansa cervicalis. However no such variation was found in the ansa cervicalis formation on the right side.

Original languageSpanish
Pages (from-to)240-243
Number of pages4
JournalInternational Journal of Morphology
Issue number1
Publication statusPublished - 03-2011


All Science Journal Classification (ASJC) codes

  • Anatomy

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