Human Anatomy - Kotsan I. Ya. 2009

Muscles and Fascia of the Head
Regions of the Face

The orbital region (regio orbitalis) is a paired area corresponding to the BOUNDARIES OF THE eye socket. It is bounded superiorly by the orbital part of the Frontal bone, medially by the frontal process of the body of the Maxilla, laterally by the zygomatic process of the frontal bone, and inferiorly by the orbital surface of the maxilla and part of the zygomatic arch.

The nasal region (regio nasalis) is unpaired. It is bounded superiorly by the glabella, inferiorly by a horizontal line drawn on the Skin through the lower edge of the nasal septum, and on both sides by the nasolabial and nasomaxillary folds.

The oral region (regio oralis) is unpaired and is bounded superiorly by the lower edge of the nasal region, inferiorly by the mentolabial sulcus, and on both sides by the nasolabial folds.

The mental region (regio mentalis) is unpaired, bounded superiorly by the mentolabial sulcus, and inferiorly and laterally by an arcuate line drawn above the lower border of the Mandible.

The infraorbital region (regio infraorbitalis) is a paired area located lateral to the nasal region and inferior to the orbital one. It is bounded superiorly by the infraorbital margin, laterally by the zygomatic region, and inferiorly by a line drawn through the lower margins of the body of the Zygomatic bone and the External Nose.

The buccal region (regio buccalis) is a paired area bounded superiorly by the lower edge of the infraorbital region, inferiorly and posteriorly by the Base of the mandible, and anteriorly by the nasolabial fold.

The zygomatic region (regio zygomatica) is a paired area corresponding to the contours of the body of the zygomatic bone.

Main Latin Terms

Epicranial Muscle — m. epicranius

Occipitofrontalis muscle — m. occipitofrontalis

Occipital belly — venter occipitalis

Frontal belly — venter frontalis

Epicranial aponeurosis (galea aponeurotica) — galea aponeurotica

Temporoparietal muscle — m. temporoparietalis

Procerus muscle — m. procerus

Orbicularis oculi muscle — m. orbicularis oculi

Orbital part — pars orbitalis

Palpebral part — pars palpebralis

Lacrimal part — pars lacrimalis

Corrugator supercilii muscle — m. corrugator supercilii

Depressor supercilii muscle — m. depressor supercilii

Nasal muscle — m. nasalis

Transverse part — pars transversa

Alar part — pars alaris

Depressor septi nasi muscle — m. depressor septi nasi

Orbicularis oris muscle — m. orbicularis oris

Marginal part — pars marginalis

Labial part — pars labialis

Depressor anguli oris muscle — m. depressor anguli oris

Levator anguli oris muscle — m. levator anguli oris

Depressor labii inferioris muscle — m. depressor labii inferioris

Levator labii superioris muscle — m. levator labii superioris

Levator labii superioris alaeque nasi muscle — m. levator labii superioris alaeque nasi

Zygomaticus minor muscle — m. zygomaticus minor

Zygomaticus major muscle — m. zygomaticus major

Risorius muscle — m. risorius

Buccinator muscle — m. buccinator

Mentalis muscle — m. mentalis

Transversus menti muscle — m. transversus menti

Anterior auricular muscle — m. auricularis anterior

Superior auricular muscle — m. auricularis superior

Posterior auricular muscle — m. auricularis posterior

Temporalis muscle — m. temporalis

Masseter muscle — m. masseter

Superficial part — pars superficialis

Deep part — pars profunda

Medial pterygoid muscle — m. pterygoideus medialis

Lateral pterygoid muscle — m. pterygoideus lateralis

Temporal fascia — fascia temporalis

Superficial lamina — lamina superficialis

Deep lamina — lamina profunda

Masseteric fascia — fascia masseterica

Buccopharyngeal fascia — fascia buccopharyngea

Parotid fascia — fascia parotidea

Frontal region — regio frontalis

Parietal region — regio parietalis

Occipital region — regio occipitalis

Temporal region — regio temporalis

Orbital region — regio orbitalis

Infraorbital region — regio infraorbitalis

Nasal region — regio nasalis

Oral region — regio oralis

Mental region — regio mentalis

Buccal region — regio buccalis

Zygomatic region — regio zygomatica