Muscles Face & Neck

Vocabulary practice flashcards covering muscle names, actions, origins, and insertions for human anatomy Labs 7-8.

Temporalis

Action: Elevates and Retracts Mandible; Origin: Lateral surface of skull; Insertion: Coronoid process of Mandible.

Masseter

Action: Elevates; Origin: Zygomatic Arch; Insertion: Angle and ramus of mandible.

Epicranius (Frontalis and Occipitalis)

Action: Frontalis – Elevates eyebrows; Occipitalis – Pulls Scalp Posteriorly. Origin: Frontalis – epicranial neurosis; Occipitalis – Occipital bone. Insertion: Frontalis – skin of eyebrows; Occipitalis – epicranial neurosis.

Orbicularis Oculi

Action: Closes eye; Origin: Orbit; Insertion: Skin of orbital area and eyelids.

Zygomaticus

Action: Pulls angle of mouth superior and laterally (smiling); Origin: Zygomatic Bone; Insertion: Skin at corner of mouth.

Orbicularis Oris

Action: Closes and protrudes lips; Origin: Maxilla and Mandible; Insertion: Lips.

Levator Anguli Oris

Action: Elevates angle of mouth (smiling); Origin: Maxilla; Insertion: Lips.

Buccinator

Action: Pulls cheeks in; Origin: Maxilla and Mandible; Insertion: Orbicularis Oris, Cheeks, and Lips.

Risorius

Action: Pulls angle of mouth laterally; Origin: Connective Tissue by Ear; Insertion: Corner of Mouth.

Depressor Labii Inferioris

Action: Protrudes Lower Lip (pout); Origin: Mandible; Insertion: Lower Lip.

Depressor Anguli Oris

Action: Draws corners of mouth inferiorly (frown); Origin: Mandible; Insertion: Corner of Mouth.

Mentalis

Action: Protrudes Lower Lip and chin for drinking and “doubtful” expression; Origin: Mandible; Insertion: Skin of chin by lower lip.

Mylohyoid

Action: Elevates Hyoid and floor of mouth, pushes food toward pharynx; Origin: Mandible; Insertion: Hyoid Bone.

Thyrohyoid

Action: Depresses hyoid; Origin: Thyroid cartilage of larynx; Insertion: Hyoid Bone.

Sternohyoid

Action: Depresses hyoid and larynx; Origin: manubrium of sternum; Insertion: hyoid.

Splenius Capitus

Action: Extends and rotates the head; Origin: Spinous process of cervical vertebrae; Insertion: Mastoid Process of occipital bone.

Sternocleidomastoid

Action: Flex and rotate head; Origin: manubrium of sternum and clavicle; Insertion: mastoid process of temporal bone.

Scalenes

Action: Move head laterally, elevate rib cage; Origin: tubercles of transverse processes of C2-C7; Insertion: First two ribs.

Levator Scapulae

Action: Elevates scapula; Origin: transverse processes of C1-C4; Insertion: Superior Angle of Scapula.