Abstract
The ultrasonography is able to reveal in-depth anatomical components of brachial plexus and to locate any lesions have been demonstrated. This study aimed to evaluate the normal cross-sectional area (CSA) of the brachial plexus nerves in the interscalene groove. Also, to correlate the anatomical specimen's with image the brachial plexus nerves. Lateral photographs of twenty plastinated sections of head and neck specimen to study the brachial plexus roots in the groove between middle and anterior scalene muscles. On the same time, fifty-five healthy volunteers of different age groups were included in our study. Ultrasound of roots of the cervical nerves was performed on both sides. The average cross-sectional area of the roots was estimated. There was a positive statistical association between the CSA of cervical nerves. These data may be beneficial in future studies designed to assess the brachial plexus injures.