Shark Brain

Question 1

What structure is innervated by Olfactory I?

Answer 1

olfactory epithelium of nasal capsule

Question 2

What structure is innervated by Optic II?

Answer 2

retina

Question 3

What structures are innervated by Oculomotor III? Hint: 4 muscles, and 2 eye structures

Answer 3

superior rectus m., medial rectus m., inferior rectus m., inferior oblique m., iris, ciliary body

Question 4

What structure is innervated by the Trochlear IV?

Answer 4

superior oblique m.

Question 5

What structures are innervated by Trigeminal V?

Answer 5

muscles of 1st gill arch, skin of the head

Question 6

What structure is innervated by Abducens VI?

Answer 6

lateral rectus m.

Question 7

What structures are innervated by Facial VII?

Answer 7

muscles second gill arch, mouth

Question 8

What structure is innervated by Auditory VIII?

Answer 8

vestibular apparatus

Question 9

What structures are innervated by Glossopharyngeal IX?

Answer 9

first gill pouch, muscles of third gill arch

Question 10

What structures are innervated by Vagus X?

Answer 10

heart, anterior digestive tract, gill arches 4-7, cucullaris, mouth, gill pouches 2-5