Spinal Wet Lab II Practical OIANs

Frontalis belly origin

Epicranial aponeurosis

Frontalis belly insertion

Skin above eyebrows

Frontalis belly action

Pulls scalp forward

Frontalis belly innervation

Temporal branch of facial nerve

Occipitalis belly origin

Highest nuchal line of occipital bone

Occipitalis belly insertion

Skin of eyebrows

Occipitalis belly action

Draw scalp backwards

Occipitalis belly innervation

Temporal branch of facial nerve

Corrugator supercilii origin

Superciliary arch

Corrugator supercilii insertion

Orbital arch

Corrugator supercilii action

Draws eyebrows downward and medial

Corrugator supercilii innervation

Temporal branch of facial nerve

Orbital part of orbicularis oculi origin

Lacrimal bone

Orbital part of orbicularis oculi insertion

Lateral palpebral raphe

Orbital part of orbicularis oculi action

Closes eyelids

Orbital part of orbicularis oculi innervation

Temporal branch of facial nerve

Palpebral part of orbicularis oculi origin

Medial palpebral ligament

Palpebral part of orbicularis oculi insertion

Lateral palpebral raphe

Palpebral part of orbicularis oculi action

Closes eyelids

Palpebral part of orbicularis oculi innervation

Temporal branch of facial nerve

Procerus origin

Fascia covering nasal bone

Procerus insertion

Skin of forehead

Procerus action

Wrinkles skin over bridge of nose

Procerus innervation

Temporal branch of facial nerve

Compressor naris origin

Area of maxilla superolateral to incisive fossa

Compressor naris insertion

Aponeurotic fascia over bridge of nose

Compressor naris action

Compresses nostrils

Compressor naris innervation

Buccal branch of facial nerve

Dilator naris origin

Area of maxilla superior to lateral incisor and canine teeth

Dilator naris insertion

Skin over lateral crus of major alar ligament

Dilator naris action

Dilates nostrils

Dilator naris innervation

Buccal branch of facial nerve

Depressor septi origin

Incisive fossa

Depressor septi insertion

Septum of nose

Depressor septi action

Draw nasal septum down

Depressor septi innervation

Buccal branch facial nerve

Levator labii superioris origin

Infraorbital margin

Levator labii superioris insertion

Subcutaneous tissue of upper lip

Levator labii superioris action

Elevates upper lip

Levator labii superioris innervation

Buccal branch of facial nerve

Levator labii superioris alaeque nasi origin

Frontal process of maxilla

Levator labii superioris alaeque nasi insertion

Upper lip

Levator labii superioris alaeque nasi action

Elevates upper lip

Levator labii superioris alaeque nasi innervation

Buccal branch of facial nerve

Zygomaticus minor origin

Zygomatic bone

Zygomaticus minor insertion

Angle of mouth

Zygomaticus minor action

Elevates upper lip

Zygomaticus minor innervation

Zygomatic branch of facial nerve

Zygomaticus major origin

Zygomatic bone

Zygomaticus major insertion

Angle of mouth

Zygomaticus major action

Elevates angle of mouth

Zygomaticus major innervation

Zygomatic branch of facial nerve

Levator anguli oris origin

Canine fossa of maxilla

Levator anguli oris insertion

Angle of mouth

Levator anguli oris action

Elevates angle of mouth

Levator anguli oris innervation

Buccal branch of facial nerve

Buccinator origin

Alveolar processes of maxilla and mandible

Buccinator insertion

Angle of mouth

Buccinator action

Compresses cheeks

Buccinator innervation

Buccal branch of facial nerve

Orbicularis oris origin

Modiolus of angulus oris

Orbicularis oris insertion

Vermillion line

Orbicularis oris action

Protrudes lips

Orbicularis oris innervation

Buccal branch of facial nerve

Mentalis origin

Incisive fossa of mandible

Mentalis insertion

Subcutaneous tissue of chin

Mentalis action

Elevates lower lip

Mentalis innervation

Marginal mandibular branch of facial nerve

Depressor labii inferioris origin

Oblique line of mandible

Depressor labii inferioris insertion

Middle portion of lower lip

Depressor labii inferioris action

Depresses lower lip

Depressor labii inferioris innervation

Marginal mandibular branch of facial nerve

Depressor anguli oris origin

Oblique line of mandible

Depressor anguli oris insertion

Angle of mouth

Depressor anguli oris action

Depresses angle of mouth

Depressor anguli oris innervation

Buccal branch of facial nerve

Levator palpebra superioris origin

Lesser wing of sphenoid

Levator palpebra superioris insertion

Skin of upper eyelid

Levator palpebra superioris action

Elevates upper eyelid

Levator palpebra superioris innervation

Oculomotor nerve

Superior rectus origin

Common tendinous ring

Superior rectus insertion

Superior surface of sclera

Superior rectus action

Elevates eyeball

Superior rectus innervation

Oculomotor nerve

Inferior rectus origin

Common tendinous ring

Inferior rectus insertion

Inferior surface of sclera

Inferior rectus action

Depresses eyeball

Inferior rectus innervation

Oculomotor nerve

Medial rectus origin

Common tendinous ring

Medial rectus insertion

Medial surface of sclera

Medial rectus action

Adducts eyeball

Medial rectus innervation

Oculomotor nerve

Lateral rectus origin

Common tendinous ring

Lateral rectus insertion

Lateral surface of sclera

Lateral rectus action

Abducts eyeball

Lateral rectus innervation

Abducens nerve

Superior oblique origin

Body of sphenoid bone

Superior oblique insertion

Sclera on superolateral part of eyeball

Superior oblique action

Medially rotates eyeball

Superior oblique innervation

Trochlear nerve