Head & Neck Muscles - Origin Flashcards
What is the origin of the frontalis muscle?
Fibers fused with the procerus and corrugator supericilii
What is the origin of the occipitalis muscle?
Lateral 2/3 of superior nuchal line
Mastoid process
What is the origin of the orbicularis oculi?
Nasal portion of frontal bone, frontal process of maxilla, lacrimal bone and medial palpebral ligament
What is the origin of the zygomaticus major?
Zygomatic bone
What is the origin of the zygomaticus minor?
Zygomatic bone
What is the origin of the orbicularis oris?
Median plane of maxilla (above) and mandible (below)
What is the origin of the depressor anguli oris?
Oblique line of the mandible
What is the origin of the buccinator?
Mandible, pterygomandibular raphe, alveolar processes of maxilla and mandible
What is the origin of the platysma?
Superficial fascia of pectoralis major and deltoid muscles
What is the origin of the levator palpebrae superioris?
Lesser wing of the sphenoid
What is the origin of the superior rectus?
Common tendinous ring or annulus of Zinn
What is the origin of the inferior rectus?
Common tendinous ring or annulus of Zinn
What is the origin of the medial rectus?
Common tendinous ring or annulus of Zinn
What is the origin of the lateral rectus?
Common tendinous ring or annulus of Zinn
What is the origin of the superior oblique?
Common tendinous ring or annulus of Zinn
What is the origin of the inferior oblique?
Floor of the orbit
What is the origin of the temporalis?
Floor of temporal fossa and deep temporal fascia
What is the origin of the masseter?
Inferior border and medial surface of zygomatic arch
What is the origin of the medial pterygoid?
Deep head - medial surface of lateral pterygoid plate and pyramidal process of palatine
Superficial head - tuberosity of the maxilla
What is the origin of the lateral pterygoid?
Superior head - infratemporal surface and infratemporal crest of the greater wing of the sphenoid
Inferior head - lateral surface of lateral pterygoid plate
