1: Ocular Eye Muscle Info Flashcards
What is the nerve supply of superior rectus?
Oculomotor superior ramus
What is the nerve supply of medial rectus?
Oculomotor inferior ramus
What is the nerve supply of inferior rectus?
Oculomotor inferior ramus
What is the nerve supply of lateral rectus?
Abducens nerve
What is the nerve supply of inferior oblique?
Oculomotor inferior ramus
What is the superior oblique nerve supply?
Trochlear nerve
What is the ciliaris muscle nerve supply?
Oculomotor via ciliary ganglion
What is the nerve supply of the pupillary constrictor?
Oculomotor via ciliary ganglion
What is the action of lavator palpebrae superioris?
Raises eyelid
What is the action of superior rectus?
Directs eyeball upward
What is the action of the medial rectus?
Directs eyeball medically
What is the action of the inferior rectus?
Directs eyeball downward
What is the action of the lateral rectus?
Directs eyeball laterally
What is the action of the superior oblique?
Directs eyeball inferior and laterally
What is the action of the inferior oblique?
Directs eyeball superior and lateral
What is the action of the ciliaris muscle?
Changes shape of lens
What is the action of the pupillary constrictor?
Constricts the pupil
What muscles allow gaze to be up and to the right?
L: inferior oblique
R: superior rectus
What muscles allow gaze to be to the right?
L: medial rectus
R: lateral rectus
What muscles allow gaze to be down and to the right?
L: superior oblique
R: inferior rectus
What muscles allow gaze to be down and to the left?
L: inferior rectus
R: superior oblique
What muscles allow gaze to be to the left?
L: lateral rectus
R: medial rectus
What muscles allow gaze to be up and to the left?
L: superior rectus
R: inferior oblique
What is the nerve supply of lavator palpebrae superioris?
Oculomotor superior ramus
