Head and Neck Muscles (Action and Innervation) Flashcards
Buccinator
Action: compress cheek
Innervation: Facial Nerve
Frontalis
Action: Elevate eyebrows
Innervation: Facial Nerve
Genioglossus
Action: Protract tongue
Innervation: hypoglossal nerve
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
Masseter
Action: elevate jaw
Innervation: Trigeminal nerve
Medial Rectus
Action: move eye medially
Innervation: oculomotor nerve
Orbicularis Oculi
Action: close eye, blink
Innervation: facial nerve
Orbicularis Oris
Action: close lips, purse lips
Innervation: facial nerve
Platysma
Action: tense neck
Innervation: facial nerve
Sternocleidomastoid
Action: flex and laterally rotate head
Innervation: Spinal Accessory Nerve
Superior Oblique
Action: Move eye inferiorly and laterally
Innervation: trochlear nerve
Superior Rectus
Action: Move eye superiorly
Innervation: Oculomotor
Temporalis
Action: elevate jaw
Innervation: trigeminal nerve
