Bassett Collection of Stereoscopic Images of Human Anatomy

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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