Extraocular Muscles Flashcards
How does the medial rectus primarily move?
Adducts
How does the lateral rectus primarily move?
Abducts
How does the inferior rectus primarily move?
Depresses
How does the superior rectus primarily move?
Elevates
How does the inferior oblique primarily move?
Extorsion
How does the superior oblique primarily move?
Intorsion
What is the secondary movement of the inferior rectus?
Extorsion
What is the secondary movement of the superior rectus?
Intorsion
What is the overall movement of the superior oblique muscle?
‘Down and out’
What is the overall movement of the superior rectus?
‘Up and in’
What is the secondary movement of the inferior oblique?
Elevation
What is the secondary movement of the superior oblique?
Depression
What is the tertiary movement of the inferior oblique?
Abduction
What is the tertiary movement of the superior oblique?
Abduction
What movement do the oblique muscles have in common?
Abduction
What is the tertiary movement of the inferior rectus muscle?
Adduction
What is the tertiary movement of the superior rectus muscle?
Adduction
What movement do the superior and inferior rectus muscles have in common?
Adduction
What extra ocular muscles are capable of adduction (regardless of if it’s the primary movement)?
Medial rectus
Inferior rectus
Superior rectus
What extraocular muscles are capable of abduction (regardless of if it’s the primary movement)?
Inferior rectus
Superior oblique
Inferior oblique
What extra ocular muscles are capable of extorsion (Regardless of primary movement)?
Inferior rectus
Inferior oblique
What extra ocular muscles are capable of intorsion (Regardless of primary movement)?
Superior rectus
Superior oblique
What extra ocular muscles are capable of depression (Regardless of primary movement)?
Inferior rectus
Superior oblique
What extra ocular muscles are capable of elevation (Regardless of primary movement)?
Superior rectus
Inferior oblique
