MOINA - 1st shifting

What is the origin of the occipital belly?

Highest nuchal line of the occipital bone

What is the insertion of the occipital belly?

Epicranial aponeurosis

What is the innervation of the occipital belly?

Facial nerve (CN VII)

What is the action of the occipital belly?

Moves scalp on skull and raises eyebrows

What is the origin of the frontal belly?

Skin and superficial fascia of eyebrows

What is the insertion of the frontal belly?

Epicranial aponeurosis

What is the innervation of the frontal belly?

Facial nerve (CN VII)

What is the action of the frontal belly?

Raises eyebrows and wrinkles forehead

What is the origin of the palpebral part of orbicularis oculi?

Medial palpebral ligament

What is the insertion of the palpebral part of orbicularis oculi?

Lateral palpebral raphe

What is the innervation of the palpebral part of orbicularis oculi?

Facial nerve (CN VII)

What is the action of the palpebral part of orbicularis oculi?

Closes eyelids and dilates lacrimal sac

What is the origin of the orbital part of orbicularis oculi?

Medial palpebral ligament and adjoining bone

What is the insertion of the orbital part of orbicularis oculi?

Loops return to origin

What is the innervation of the orbital part of orbicularis oculi?

Facial nerve (CN VII)

What is the action of the orbital part of orbicularis oculi?

Throws skin around orbit into folds to protect eyeball

What is the origin of corrugator supercilli?

Superciliary arch

What is the insertion of corrugator supercilli?

Skin of eyebrow

What is the innervation of corrugator supercilli?

Facial nerve (CN VII)

What is the action of corrugator supercilli?

Produces vertical wrinkles of forehead (frowning)

What is the origin of compressor nasi?

Frontal process of maxilla

What is the insertion of compressor nasi?

Aponeurosis of bridge of nose

What is the innervation of compressor nasi?

Facial nerve (CN VII)

What is the action of compressor nasi?

Compresses mobile nasal cartilages

What is the origin of dilator naris?

Maxilla

What is the insertion of dilator naris?

Ala of nose

What is the innervation of dilator naris?

Facial nerve (CN VII)

What is the action of dilator naris?

Widens nasal aperture

What is the origin of procerus?

Nasal bone

What is the insertion of procerus?

Skin between eyebrows

What is the innervation of procerus?

Facial nerve (CN VII)

What is the action of procerus?

Wrinkles skin of nose

What is the origin of orbicularis oris?

Maxilla, mandible, and skin

What is the insertion of orbicularis oris?

Encircles oral orifice

What is the innervation of orbicularis oris?

Facial nerve (CN VII)

What is the action of orbicularis oris?

Compresses lips together

What is the origin of levator labii superioris alaeque nasi?

Bones and fascia around oral aperture

What is the insertion of levator labii superioris alaeque nasi?

Substance of lips

What is the innervation of levator labii superioris alaeque nasi?

Facial nerve (CN VII)

What is the action of levator labii superioris alaeque nasi?

Separates lips

What is the origin of levator labii superioris?

Maxilla

What is the insertion of levator labii superioris?

Upper lip

What is the innervation of levator labii superioris?

Facial nerve (CN VII)

What is the action of levator labii superioris?

Elevates upper lip

What is the origin of zygomaticus minor?

Zygomatic bone

What is the insertion of zygomaticus minor?

Upper lip

What is the innervation of zygomaticus minor?

Facial nerve (CN VII)

What is the action of zygomaticus minor?

Elevates upper lip

What is the origin of zygomaticus major?

Zygomatic bone

What is the insertion of zygomaticus major?

Angle of mouth

What is the innervation of zygomaticus major?

Facial nerve (CN VII)

What is the action of zygomaticus major?

Elevates angle of mouth (smiling)

What is the origin of levator anguli oris?

Maxilla (below infraorbital foramen)

What is the insertion of levator anguli oris?

Angle of mouth

What is the innervation of levator anguli oris?

Facial nerve (CN VII)

What is the action of levator anguli oris?

Elevates angle of mouth

What is the origin of risorius?

Fascia over masseter

What is the insertion of risorius?

Skin at angle of mouth

What is the innervation of risorius?

Facial nerve (CN VII)

What is the action of risorius?

Draws angle of mouth laterally

What is the origin of depressor labii inferioris?

Mandible

What is the insertion of depressor labii inferioris?

Lower lip

What is the innervation of depressor labii inferioris?

Facial nerve (CN VII)

What is the action of depressor labii inferioris?

Depresses lower lip

What is the origin of mentalis?

Mandible

What is the insertion of mentalis?

Skin of chin

What is the innervation of mentalis?

Facial nerve (CN VII)

What is the action of mentalis?

Elevates and wrinkles chin; protrudes lower lip

What is the origin of buccinator?

Outer surface of alveolar margins of maxilla and mandible, and pterygomandibular ligament

What is the insertion of buccinator?

Angle of mouth (blends with orbicularis oris)

What is the innervation of buccinator?

Facial nerve (CN VII)

What is the action of buccinator?

Compresses cheeks and lips against teeth

What is the origin of platysma?

Deep fascia over pectoralis major and deltoid

What is the insertion of platysma?

Body of mandible and angle of mouth

What is the innervation of platysma?

Facial nerve (CN VII, cervical branch)

What is the action of platysma?

Depresses mandible and angle of mouth

What is the origin of the masseter?

Zygomatic arch

What is the insertion of the masseter?

Lateral surface of ramus of mandible

What is the innervation of the masseter?

Mandibular division of trigeminal nerve (CN V)

What is the action of the masseter?

Elevates mandible to occlude teeth