Axial Muscle Origins and Insertions Flashcards
temporalis
O: temporal fossa of skull
I: coronoid process of mandible
massester
O: zygomatic arch
I: lateral ramus and angle of mandible
medial pterygoid
O: sphenoid bone
I: medial ramus of mandible
lateral pterygoid
O: sphenoid bone
I: neck of mandible and TMJ capsule and disk
superior rectus
O: common tendinous ring
I: anterosuperior eyeball
inferior rectus
O: common tendinous ring
I: anteroinferior eyeball
medial rectus
O: common tendinous ring
I: anteromedial eyeball
lateral rectus
O: common tendinous ring
I: anterolateral eyeball
superior oblique
O: lesser wing of sphenoid
I: posterosuperior eyeball
inferior oblique
O: orbital portion of maxilla
I: posteroinferior eyeball
sternocleidomastoid
O: manubrium and medial clavicle
I: mastoid process and superior nuchal line
splenius capitis
O: cervical and upper thoracic spinous processes
I: mastoid process and superior nuchal line
spenius cervicis
O: mid thoracic spinous processes
I: cervical 1-4 transverse processes
spinalis
O: spinous processes
I: spinous processes
iliocostalis (I only)
I: transverse processes and angles of ribs