EXAM 5: Muscles Flashcards
Buccinator
Action: Compress Cheek
Innervation: Facial VII
Frontalis
Action: Elevate eyebrows
Innervation: Facial VII
Genioglossus
Action: Protract Tongue
Innervation: Hypoglossal XII
Masseter
Action: Elevate jaw
Innervation: Trigeminal V
Orbicularis Oris
Action: Close mouth
Innervation: Facial VII
Orbicularis Oculi
Action: close eye
Innervation: Facial VII
Platysma
Action: Tense Neck
Innervation: Facial VII
Sternocleidomastoid
Action: flex; laterally rotate head
Innervation: Spinal Accessory XI
Temporalis
Action: Elevate jaw
Innervation: Trigeminal V
Digastric
Action: Depressing jaw
Innervation: Trigeminal V
Styloglossus
Action: Retract tongue
Innervation: Hypoglossal XII
Zygomaticus
Action: Pulls Sides of mouth laterally (Smile)
Innervation: Facial VII
Inferior Oblique
Action: move eye superiorly and laterally
Innervation: oculomotor nerve
Inferior Rectus
Action: move eye inferiorly
Innervation: oculomotor nerve
Lateral Rectus
Action: move eye laterally
Innervation: abducens nerve