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Image #66-2
Dissection of pharynx from left lateral approach
Wall of pharynx, lateral view
The internal pterygoid muscle has been removed and most of the lateral lamina of the pterygoid process cut away. A plexus of small veins covers the lateral surface of the tensor veli palatini muscle. The internal maxillary artery has been resected except for its terminal branches, and the digastric and stylohyoid muscles have been removed. Bone of the palate and the lateral wall of the nasal fossa has been cut away. The external carotid artery (27) has been retracted laterally so that the plexus of nerves which extends along the artery from the superior cervical ganglion is visible. The ganglion itself remains covered. The external maxillary artery has been transected just beyond its ascending palatine branch (22). No tonsillar artery was present and in this case was probably replaced by the ascending palatine artery.