Face And Scalp Flashcards
Where do the muscles of facial expression originate from
Mesoderm in second pharyngeal arches
Where does the orbicularis oculi originate from
Medial orbital margin, medial palpebral margin, lacrimal bone
Where does the orbicularis oculi originate
From the skin around the margin of the orbit, and the tarsal plates of the eyelid
Actions of orbicularis occuli
Palpebral- gently closes eye
Lacrimal- drainage of tears
Orbital part# tightly closes eyelids
Innervation of orbicularis occuli
Temporal and zygomatic branches of facial nerve
Origin and insertion of orrugator supercilii
Origin: medial aspect of supercilliary arch
Inserts-skin of the eyebrow
Action of corrugator supercilii
*Draws the eyebrows closer, creating vertical wrinkles on bridgeof nose, associated with frowning or scowling
Innervation of corrugator supercilli
Temporal branch of facial
Origin and insertion of alar part of the nasalis
Origin- frontal process of the maxilla
Insertion-major alar cartilage
Action of alar part of maxilla
Widens the nasal opening
Origin and insertion of transverse part of nasalis
Origin- maxilla
Insertion - aponeurosis across dorsum of nose
Action of transverse part of nasalis
Compress nasal opening
Innervation of nasalis
Buccal branch of facial
Define procerus
Most superior of nasal muscles and most superficial to muscles of facial expression
Origin , action and insertion of procerus
Origin: nasal bone
Insertion:skin of lower medial forehead
Action: pulls down eyebrows to form transverse wrinkles, associated with frowning
Innervation: buccal branch of facial
