| Term | Definition |
|---|
| O: frontalis | Galea aponeurotica |
| I: frontalis | Skin of eyebrows and root of nose |
| A: frontalis | Raises eyebrows and wrinkles forehead skin |
| O: occipitalis origin | Occipital and temporal bones |
| I: occipitalis insertion | Galea aponeurotica |
| A: occipitalis action | pulls scalp posteriorly |
| O: Orbicularis oculi | frontal and maxillary bones |
| I: Orbicularis oculi | tissue of the eyelid |
| A: Orbicularis oculi | produces blinking, squinting, and draws eyebrows inferiorly |
| O: Orbicularis oris | Arises indirectly from maxilla and mandible |
| I: Orbicularis oris | Encircles mouth; inserts into skin and muscles at lateral corners of mouth |
| A: Orbicularis oris | Closes and protrudes lips (kissing and whistling action) |
| O: Temporalis | Occipital and temporal bone |
| I: Temporalis | Mandible |
| A: Temporalis | Elevates mandible |
| O: Masseter | Zygomatic arch |
| I: Masseter | ramus of mandible |
| A: Masseter | elevates mandible |
| O: Splenius | spinous process of C7-T6 |
| I: Splenius | temporal and occipital bone |
| A: Splenius | (together) it extends head; (alone) rotates and bends toward same side |
| O: Sternocleidomastoid | sternum and clavicle |
| I: Sternocleidomastoid | mastoid process of the temporal bone |
| A: Sternocleidomastoid | (together) it flex head; (alone) rotates and bends toward opposite shoulder |
| O: Semispinalis | transverse process of vertebra C7-T12 |
| I: Semispinalis | occipital bone and spinous process of cervical and thoracic vertebrae (o T4) |
| A: Semispinalis | Extends vertebral column and head, rotates to opposite side |
| O: Buccinator | maxilla and mandible |
| I: Buccinator | orbicularis oris |
| A: Buccinator | compresses the cheek (as in whistling) |
| O: Mentalis | mandible |
| I: Mentalis | skin of chin |
| A: Mentalis | protrudes lower lip; wrinkles the chin |
| Facial nerve (CN VII) | Frontalis, Occipitalis, Orbicularis oculi, Buccinator, Orbicularis oris, Mentalis |
| Trigeminal nerve (CN V) | Masster and temporalis |
| Cervocal spinal nerve | innervation of Splenius |
| Accessory nerve (CN XI) | innervation of Sternocleidomastoid |
| Spinal nerves | Innervation of Semispinalis and Erector spinae group |
| Erector spinae group | prime movers of back extension, arranged as three vertically running columns from medial to lateral |
| Errector spinae group | spinalis, longismis, ilicostalis |
| O: Spinalis | spines of upper limbar to lower thoracic |
| I: Spinalis | Spines of upper thoracic to cervical vertebrae |
| A: Spinalis | Extends vertebral column |
| O: Longissmius | Transverse process of lumbar through cervical vertebrae |
| I: Longissmius | Transverse process of throacic through cervical vertebrae and rib superior to origin |
| A: Longissmius | Extend and laterally flex vertebral column |
| O: Ilicostalis | iliac crest and inferior 3 to 6 ribs |
| I: ilicostalis | ribs and transverse processes of cervical vertebrae |
Combine with other sets
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