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Lab
| Epicranius - Occipital body | Origin: occipital bone Insertion: Galea Aponeurotic Action: pulls scalp posteriorly |
| Epicranius - frontal belly | Origin: Galea aponeurotic Insertion: Skin of eyebrow Action: raise the eybrow |
| Orbicularis Oculi | Origin: Frontal and Maxillary bones Insertion: eyelid Action: close eyes |
| Levator Labili Superioris | Origin: Zygomatic and Maxilla bones Insertion: upper lip Action: raises upper lips |
| Zygomatic major & minor | Origin: zygomatic bone Insertion: corner of mouth Action: smiling muscles |
| Buccinator | Origin: Maxilla & Mandible Insertion: obicularis muscles Action: compresses cheek |
| Risorius | Origin: Masseter muscle Insertion: angle of the mouth Action: pulls corner of lips laterally |
| Depressor Anguli Oris | Origin: mandible Insertion: angle of mouth Action: pulls corner of mouth down and laterally |
| Depressor Labii Inferioris | Origin: mandible Insertion: lower lip Action: pulls lower lip inferiorly |
| Mentalis | Origin: mandible Insertion: skin of chin Action: protrudes lower lip |
| Orbicularis Oris | Origin: maxilla & mandible Insertion: angle of mouth Action: closes lip |
| Digastric | Origin: mandible, temporal bone Insertion: hyoid bone Action: elevates hyoid bone |
| Mylohyoid | Origin: manbiel Insertion: hyoid bone Action: elvates hyoid bone |
| Sternohyoid | Origin: manubrium & clavicle Insertion: hyoid bone Action: depresses hyoid bone |
| Platysma | Origin: fascia of chest and deltoid Insertion: mandible, skin, corner of mouth Action: tenses skin of neck, depresses mandible, pulls back an down |
| Sternocleidomastoid | Origin: Manubrium & clavicle Insertion: mandible, skin, corner of the mouth Action: flexion forward of the neck |
| Scalenes | Origin: clavicle vertebrae Insertion: first 2 ribs Action: elevates first 2 ribs |
| Massester | Origin: zygomatic & maxilla bones Insertion: mandible Action: closes the jaw |
| Temporalis | Origin: temporal fosssa Insertion: mandible Action: closes the jaw |
| Pterygoids | Origin: sphenoid bone Insertion: mandible Action: grinding, jaw protraction |
| Inferior & superior rectus | Action: elevates and depressed the eye |
| Lateral & medial rectus | Action: moves eye laterally and medially |
| Inferior oblique | Action: elevates the eye and turns it laterally |
| Superior oblique | depresses the eye and turns it laterally |