Surgery

Which of the following statements about branchial cleft anomalies is true?

A fistula that lies between the external auditory canal and the submandibular region originates from the second branchial cleft

The course of the first branchial cleft fistula is through the bifurcation of the carotid artery

Injury to the hypoglossal nerve may occur during excision of a second branchial cleft fistula

The internal opening of the second branchial cleft fistula is usually found in the maxillary sinus