MUSCLES OF THE EYEBALL

Question 1

1. levator palpebrae superioris muscle

Answer 1

IN= oculomotor nerve(CN II) but its deep layer called superior tarsal muscle is innervated by sympathetic fibers

MA= elevates the superior eyelid

Question 2

2. superior oblique muscle(so)

Answer 2

1. IN= trochlear nerve CN IV

2. MA= a. abducts, depresses, medially rotates the eyeball

Question 3

3. inferior oblique muscle

Answer 3

1. IN= oculomotor nerve CNV III

2. MA= abducts, elevates, laterally rotates the eyeball

Question 4

4. superior rectus muscle

Answer 4

1. IN = oculomotor nerve CNVIII

2. MA= elevates, adducts, medially rotates the eyeball

Question 5

5. medial rectus muscle

Answer 5

1. IN= oculomotor nerve CNVIII

2. MA= adducts eyeball

Question 6

6. inferior rectus muscle

Answer 6

1. IN= oculomotor nerve CNVIII

2. MA= depresses, adducts, laterally rotates the eyeball

Question 7

7. lateral rectus muscles

Answer 7

1. IN= abducens nerve CNVI

2. MA= abducts the eyeball