Shark Brain Dissection Flashcards
(27 cards)
shark three semicircular canals of the
inner ear purpose
this apparatus is used for
detecting body position and equilibrium
vagus number
10
glossopharyngeal number
9
auditory number
8
facial number
7
abducens number
6
trigeminal number
5
trochlear number
4
oculomotor number
3
optic number
2
olfactory number
1
vagus function
Heart and interior digestive tract, gill arches four through seven, cucullaris, mouth, gill pouches, two through five
Glossopharyngeal function
First gill pouch, pharynx, muscles of third gill arch
Auditory function
Vestibular apparatus
Facial function
Muscle of second gill arch, mouth
Abducens function
Lateral rectus, eye muscle
Trigeminal function
Muscles of first gill arch, skin of head
Trochlear function
Superior oblique, eye muscle
Oculomotor function
Superior rectus, medial rectus, inferior rectus, inferior leak, iris, ciliary body of eye
Optic function
Retina of eye
Olfactory function
Olfactory epithelium of nasal capsule
What makes up the brain of the lamp ray?
Cerebrum, diencephalon, mesencephalon, medulla, oblongata, cerebellum
Spinal cord of lamprey
Dorsal and ventral roots emerge, alternatively and do not join
Nostril and Olfactory sack
Nostril is anterior to the brain and opens in the olfactory sack, giving the lamprey the sense of smell
