Lecture 22: MM of the F, J, E ACTIONS Flashcards
What is the action of Frontalis?
Draws scalp anteriorly
Raises eyebrows and wrinkles skin of forhead horizontally
What is the action of Occipitalis?
Draws scalp posteriorly and aids in wrinkling forhead
What is the action of Auriculares?
Superior: elevates pinna
Anterior: draws pinna forward
Posterior: draws pinna backward
What is the action of Orbicularis Oculi?
Closes eyelids
What is the action of Corrugator Supercilii?
Draws eyebrows inferior and medial causing verticle wrinkles in forhead (as in frowning)
What is the action of Procerus?
Draws medial angle of the eyebrows down and pulls the skin of the nose up, as in scrunching up the nose.
What is the action of Levator Palpebrae Superioris?
Elevates upper eyelid (opens eye)
What is the action of Nasalis?
Depresses cartilagenous parts of the nose (transverse part) and flares nostrils.
*Fibre direction superomedial thus pulls nostrils laterally
What is the action of Levator Labii Superioris?
Elevates upper lip
What is the action of Levator Labii Superioris Alaeque Nasi?
Elevates upper lip
What is the action of Zygomaticus Minor?
Elevates upper lip
What is the action of Zygomaticus Major?
Elevates the angle of the mouth and pulls it laterally (smiling and laughing muscle)
What is the action of Orbicularis Oris?
Closes lips
compresses lips
protrudes lips
shapes lips
What is the action of Risorius?
Draws angle of mouth laterally (creating flat line with the mouth)
What is the action of Buccinator?
Compresses cheek
What is the action of Depressor Anguli Oris?
Draws the corners of the mouth down
Fibre direction superomedial
What is the action of Depressor Labii Inferioris?
Depresses lower lip
Making sad face
What is the action of Mentalis?
Elevates and protrudes lower lip (pouting muscle)
What is the action of Platysma?
Depresses lower jaw and lip
Tenses and ridges the skin of the neck
What is the action of Superior Rectus?
Raises the cornea upward and medially
What is the action of Inferior Rectus?
Depresses the cornea downward and medially
What is the action of Medial Rectus?
Rotates the cornea so the cornea turns medially
What is the action of Lateral Rectus?
Rotates the eye so the cornea faces laterally
What is the action of Superior Oblique?
Rotates the eye so the cornea looks downward and laterally
