General orientation views of dissection

Parotid gland; distribution of facial nerve, lateral view

For permissions information regarding the use of these images, please contact Drew Bourn at dbourn@stanford.edu

Image #49-3

General orientation views of dissection Parotid gland; distribution of facial nerve, lateral view The parotideomasseteric fascia has been cut away to reveal the parotid gland and various branches of the facial nerve. In the temporal region the auricular muscles, orbicularis oculi muscle, galea aponeurotica and underlying temporal fascia have been resected but superficial branches of nerves and arteries have been preserved. The course of the external maxillary artery and anterior facial vein is displayed. The latter consists of several small vessels superiorly. In the cervical region the platysma has been extensively cut away and the external layer of deep cervical fascia removed. Close-up views which illustrate more details of this dissection are to be found as follows 1 . Temporal fascia 2 . Auriculotemporal nerve 3 . Temporal branches of facial nerve 4 . Orbicularis oculi muscle (partially removed) 5 . Zygomatic branches of facial nerve 6 . Zygomaticus muscle (cut across and reflected superiorly) 7 . Infraorbital branches of facial nerve 8 . Levator labii superioris muscle 9 . Buccal branches of facial nerve 10 . Anterior facial vein 11 . External maxillary artery 12 . Marginal mandibular branches of facial nerve 13 . Platysma (cut across and reflected) 14 . Mentalis muscle 15 . Fascia enclosing submandibular gland 16 . Branch colli facial nerve 17 . Occipitalis muscle 18 . Posterior auricular muscle 19 . Lesser occipital nerve 20 . Parotid gland 21 . Greater auricular nerve 22 . Masseter muscle 23 . Sternocleidomastoid muscle 24 . Accessory nerve (branch to trapezius muscle) 25 . Cutaneus colli nerve 26 . External jugular vein 27 . Superficial cervical lymph glands