Activity 1
Format: muscle - origin - insertion - action
1. Risorius - Fascia of Parotid Salivary Gland - Under skin at mouth corner - Pulls angle of mouth laterally
2. Mentalis - Mandible - Underneath chin skin - Pulls lower lip out
3. Buccinator - Maxilla, Mandible, Sphenoid Bone - Orbicularis Oris - Maintains cheek tension
4. Occipitofrontalis (frontal belly) - Epicraneal Aponeurosis - Under forehead skin - Furrows the eyebrows
5. Orbicularis Oculi - Medial bones composing the orbit - Orbit circumference - Closes eyelids
6. Frontalis - Occipital bone, Epicraneal Aponeurosis - Orbicularis Oculi - Raises eyebrows