Orbit 2

Question 1

blue arrow

Answer 1

superior tarsal plate

Question 2

green arrow

innervation?

Answer 2

superior rectus

superior division of oculomotor CN III

Question 3

the inability to depress an adducted eye indicates a lack of function of what muscle

Answer 3

superior oblique

Question 4

superior oblique actions

Answer 4

depression, abduction, intorsion

Question 5

green dot

Answer 5

lateral rectus

Question 6

orange arrow

Answer 6

superior oblique

Question 7

right eye looking up and to the left uses which muscles

Answer 7

inferior oblique, medial rectus

Question 8

red arrow

innervation?

Answer 8

inferior rectus

inferior division of oculomotor

Question 9

the left eye looking up and to the left uses which muscles

Answer 9

superior rectus, lateral rectus

Question 10

left eye looking down and to the right uses which muscles

Answer 10

superior oblique, medial rectus

Question 11

oculomotor nerve CN III passes through the _____ into the orbit

Answer 11

superior orbital fissure

Question 12

pink arrow

Answer 12

medial rectus

Question 13

pink arrow

innervation?

Answer 13

medial rectus

inferior division of oculomotor CN III

Question 14

the right eye looking down and to the left uses which muscles

Answer 14

superior oblique, medial rectus

Question 15

the left eye looking down and to the left uses which muscles

Answer 15

inferior rectus, lateral rectus

Question 16

lateral rectus action

Answer 16

strong abduction

Question 17

blue muscle

Answer 17

lateral rectus

Question 18

medial rectus actions:

Answer 18

adduction

Question 19

right eye looking down and to the right uses which muscles

Answer 19

inferior rectus, lateral rectus

Question 20

light blue arrow

Answer 20

inferior oblique

Question 21

blue arrow

Answer 21

superior rectus

Question 22

which nerve passes along the medial side of the lateral rectus muscle

Answer 22

abducent nerve CN VI

Question 23

green arrow

Answer 23

superior rectus

Question 24

green arrow

Answer 24

superior division of the oculomotor never CN III

Question 25

the abducent nerve enters the orbit through the

Answer 25

superior orbital fissure

Question 26

What are the two divisions of the oculomotor nerve?

Answer 26

Superior and inferior

Question 27

which muscle of the eye does not have an origin on the tendinous ring

Answer 27

inferior oblique has an origin on the medial anterior wall of the orbit inferior to the trochlea

Question 28

left eye looking up and to the right uses which muscles

Answer 28

inferior oblique, medial rectus

Question 29

the superior division of the oculomotor nerve innervates:

Answer 29

superior rectus, levator palpebrae superioris

Question 30

red arrow

Answer 30

inferior rectus

Question 31

green arrow

Answer 31

levator palpebrae superioris

Question 32

right eye looking up and to the right uses which muscles

Answer 32

superior rectus, lateral rectus

Question 33

pink arrow

Answer 33

medial rectus

Question 34

blue arrow

Answer 34

lateral rectus

Question 35

green ring

Answer 35

common tendinous ring

Question 36

orange arrow

Answer 36

superior oblique

Question 37

looking up uses which muscles

Answer 37

inferior oblique, superior rectus

Question 38

yellow muscle

Answer 38

superior oblique

Question 39

why does superior rectus slightly adduct the eye

Answer 39

the muscle is slightly medial to the central axis

Question 40

green arrow

Answer 40

levator palpebrae superioris

Question 41

inferior oblique actions

Answer 41

elevation, abduction, extorsion

Question 42

green arrow

Answer 42

abducent nerve CN VI

Question 43

light blue arrow

Answer 43

trochlea

Question 44

light blue arrow

Answer 44

trochlea

Question 45

looking down uses which muscles

Answer 45

superior oblique, inferior rectus

Question 46

red muscle

Answer 46

levator palpebrae superioris

Question 47

green arrow

Answer 47

trochlear nerve

Question 48

lateral rectus actions:

Answer 48

abduction

Question 49

superior rectus actions

Answer 49

elevation, adduction, intorsion

Question 50

green arrow

Answer 50

abducent nerve CN VI

Question 51

pink muscle

Answer 51

inferior rectus

Question 52

medial rectus action

Answer 52

strong adduction

Question 53

blue dot

Answer 53

inferior oblique

Question 54

inferior rectus actions

Answer 54

depression, adduction, extorsion

Question 55

blue arrow innervation?

Answer 55

lateral rectus Abducent CN VI

Question 56

green arrow

Answer 56

trochlear nerve

Question 57

which nerve passes along the superior surface of the superior oblique muscle?

Answer 57

trochlear nerve

Question 58

the inability to elevate an abducted eye indicates a lack of function in which muscle

Answer 58

superior rectus

Question 59

green arrow

Answer 59

superior division of the oculomotor nerve CN III

Question 60

purple muscle

Answer 60

medial rectus

Question 61

the levator palpebrae superioris is innervated by the

Answer 61

superior division of the oculomotor CN III

Question 62

blue arrow

Answer 62

inferior division of the oculomotor nerve CN III

Question 63

blue arrow

Answer 63

inferior division of the oculomotor nerve CN III

Question 64

red arrow

Answer 64

inferior rectus

Question 65

the inferior division of the oculomotor nerve innervates:

Answer 65

medial rectus, inferior rectus, inferior oblique, preganglionic parasympathetics

Question 66

orange muscle

Answer 66

superior rectus

Question 67

common tendinous ring function:

Answer 67

serves as the shared insertion point for the muscles of the orbit

Question 68

superior rectus action

Answer 68

strong elevation, slight adduction, intorsion

Question 69

trochlear nerve enters the orbit through the

Answer 69

superior orbital fissure

Question 70

green muscle

Answer 70

inferior oblique

Question 71

orange arrow innervation?

Answer 71

superior oblique trochlear nerve (CN IV)