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ANATOMY
Medicine Made Simple
, TEMPORAL AND INFRATEMPORAL REGIONS
Temporal Fossa
Boundaries
1. Superiorly – temporal lines
2. Inferiorly – zygomatic arch
3. Roof – temporalis fascia(deep temporal fascia)
4. Floor – side of skull including Pterion
5. Anterior wall – zygomatic processes of frontal bone, zygomatic bone , maxilla
Contents
1. temporalis muscle
2. Deep temporal arteries
3. Deep temporal branches of mandibular nerve
4. Middle temporal artery – a branch of superficial temporal artery
7 layers through temporal region of scalp
1. Skin
2. Subcutaneous connective tissue
3. Temporoparietal fascia- extending from zygomatic arch to Aponeurotic layer
4. Temporoparietal fat pad – continuous with loose C.T. layer
5. Temporal fascia
6. Temporalis
7. Pericranium
Muscle Origin Insertion Innervation Action
Temporalis Floor of temporal Coronoid process Mandibular nerve Elevation and
fossa, below of Mandible and – deep temporal retraction of mandible
inferior temporal anterior border of branches of Side to side movement
line ramus anterior division
Masseter Lower border of Angle and Lateral Masseteric branch Elevation and
Zygomatic Arch surface of Ramus of Anterior division protrusion
3 layers of the Mandible of mandibular
nerve
1
ANATOMY
Medicine Made Simple
, TEMPORAL AND INFRATEMPORAL REGIONS
Temporal Fossa
Boundaries
1. Superiorly – temporal lines
2. Inferiorly – zygomatic arch
3. Roof – temporalis fascia(deep temporal fascia)
4. Floor – side of skull including Pterion
5. Anterior wall – zygomatic processes of frontal bone, zygomatic bone , maxilla
Contents
1. temporalis muscle
2. Deep temporal arteries
3. Deep temporal branches of mandibular nerve
4. Middle temporal artery – a branch of superficial temporal artery
7 layers through temporal region of scalp
1. Skin
2. Subcutaneous connective tissue
3. Temporoparietal fascia- extending from zygomatic arch to Aponeurotic layer
4. Temporoparietal fat pad – continuous with loose C.T. layer
5. Temporal fascia
6. Temporalis
7. Pericranium
Muscle Origin Insertion Innervation Action
Temporalis Floor of temporal Coronoid process Mandibular nerve Elevation and
fossa, below of Mandible and – deep temporal retraction of mandible
inferior temporal anterior border of branches of Side to side movement
line ramus anterior division
Masseter Lower border of Angle and Lateral Masseteric branch Elevation and
Zygomatic Arch surface of Ramus of Anterior division protrusion
3 layers of the Mandible of mandibular
nerve
1
