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Bassett Collection of Stereoscopic Images of Human Anatomy

Dissection of left temporal region

Temporal muscle, lateral view

Image #64-4

KEYWORDS: Connective tissue, Muscles and tendons, Peripheral nervous system, Scalp.

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Dissection of left temporal region
Temporal muscle, lateral view
The zygomatic arch has been resected to reveal a separate layer of muscle (8) which arises from the inner surface of the arch and inserts on the coronoid process of the mandible. This muscle fascicle is supplied by a branch of masseteric nerve (12). A delicate sheet of muscle fibres related to the temporal fascia covers the main mass of the temporal muscle and is supplied by a branch (6) of the anterior deep temporal nerve.
1 . Coronal suture
2 . Frontal bone
3 . Temporal line
4 . Temporalis muscle
5 . Zygomaticotemporal branches of zygomatic nerve
6 . Nerve filament to superficial fascicle of temporalis muscle
7 . Remnant of temporal fascia which was attached to zygomatic arch
8 . Muscle origin from zygomatic arch (bone resected)
9 . Zygomaticofacial branch zygomatic nerve
10 . Malar surface zygomatic bone
11 . Position of coronoid process of mandible
12 . Masseteric nerve
13 . Tendon of masseter muscle
14 . Branches of facial nerve (reflected with parotid gland)
15 . Parietal bone
16 . Occipitalis muscle (cut across)
17 . Zygomatic process temporal bone (cut across)
18 . Origin of posterior auricular muscle
19 . Occipital branch of posterior auricular nerve
20 . Upper pointer: Middle temporal artery Lower pointer: Superficial temporal artery
21 . External acoustic meatus
22 . Auriculotemporal nerve (cut across)
23 . Lesser occipital nerve
24 . Parotid gland (reflected posteriorly)
25 . Parotid duct
26 . Sternocleidomastoid muscle and great auricular nerve