Variations of the origin of superior thyroid artery and its relationship with the external branch of superior laryngeal nerve.

ABSTRACT:

Introduction

The superior thyroid artery, the main atrial supply of neck region, is branched from the external carotid artery as a first branch, but it may also arise from the common carotid artery and its bifurcation. The external branch of superior laryngeal nerve runs parallel to it and later crossing the artery either above or below the upper pole of the thyroid gland.

Objective

This study aimed at evaluating the variations of the origin of superior thyroid artery and its relationship with the external branch of the superior laryngeal nerve.

Methods

A descriptive study was conducted on 43 embalmed cadavers. The anterior triangle of the neck region was dissected bilaterally. The presence or absence of STA and its origin, branching pattern, relationship with the ext

SUBMITTER: Dessie MA 

PROVIDER: S-EPMC5944925 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature