ALL Muscles of the Face and Neck: Origin, Insertion, Function(s) and Nerve

Temporalis

Réponse: Origin: Temporal fossa Insertion: Coronoid process and anterior border of the ramus of the mandible Function: (2) 1. Elevates the mandible @ TMJ 2. Retracts the mandible @ TMJ Nerve: Mandibular branch of trigeminal nerve (cranial nerve 5)

Masseter

Réponse: Origin: Inferior part of zygomatic arch Insertion: Angle and ramus of mandible Function: (2) 1. Elevates the mandible @ TMJ 2. Protracts the mandible @ TMJ Nerve: Mandibular branch of trigeminal nerve (cranial nerve 5)

Medial pterygoid

Réponse: Origin: Medial surface of the lateral pterygoid plate of the pterygoid process of the sphenoid bone Insertion: Internal surface of the angle and inferior border of the ramus of the mandible Function: (3) 1. Elevates the mandible @ TMJ 2. Protracts the mandible @ TMJ 3. Contralaterally deviates the mandible @ TMJ Nerve: Mandibular branch of the trigeminal nerve (cranial nerve 5)

Occipitalis

Réponse: Origin: Occipital bone and mastoid process of temporal bone Insertion: Galea aponeurotica Function: (3) 1. Draws scalp posteriorly (occipitalis) 2. Draws scalp anteriorly (frontalis) 3. Elevates eyebrow (frontalis) Nerve: Facial nerve (Cranial nerve 7)

Frontalis

Réponse: Origin: Galea aponeurotica Insertion: Fascia and skin superior to the eye and nose Function: (3) 1. Draws scalp posteriorly (occipitalis) 2. Draws scalp anteriorly (frontalis) 3. Elevates eyebrow (frontalis) Nerve: Facial nerve (Cranial nerve 7)

Auricularis anterior

Réponse: Origin: Galea aponeurotica Insertion: Anterior ear Function: (3) 1. Draws the ear anteriorly (anterior) 2. Elevates the ear (superior) 3. Draws the ear posteriorly (posterior) Nerve: Facial nerve (Cranial nerve 7)

Auricularis superior

Réponse: Origin: Galea aponeurotica Insertion: Superior ear Function: (3) 1. Draws the ear anteriorly (anterior) 2. Elevates the ear (superior) 3. Draws the ear posteriorly (posterior) Nerve: Facial nerve (Cranial nerve 7)

Auricularis posterior

Réponse: Origin: Mastoid part of the temporal bone Insertion: Posterior ear Function: (3) 1. Draws the ear anteriorly (anterior) 2. Elevates the ear (superior) 3. Draws the ear posteriorly (posterior) Nerve: Facial nerve (Cranial nerve 7)

Orbital part of Orbicularis oculi muscle:

Réponse: Origin: 1. Nasal part of the frontal bone 2. Frontal process of the maxilla (and medial palpebral ligament) Insertion: Returns to the same attachment Function: (3) 1. Closes and squints the eyes (orbital part) 2. Blinking (palpebral part) 3. Removal of tear (lacrimal part) Nerve: Facial nerve (Cranial nerve 7)

Palpebral part of Orbicularis oculi muscle:

Réponse: Origin: Medial palpebral ligament Insertion: Lateral palpebral ligament Function: (3) 1. Closes and squints the eyes (orbital part) 2. Blinking (palpebral part) 3. Removal of tear (lacrimal part) Nerve: Facial nerve (Cranial nerve 7)