Lamprey

Question 1

anterior dorsal cartilage, posterior dorsal cartilage, auditory/nasal capsules

Answer 1

Chondrocranium

Question 2

network of cartilages supporting pharyngeal region

Answer 2

branchial basket

Question 3

hemispherical cartilage at posterior end of branchial basket

Answer 3

pericardial cartilage

Question 4

main structural element of oral funnel

Answer 4

annular cartilage

Question 5

ventral to chondocranium

Answer 5

lingual cartilage

Question 6

openings posterior to eyes

Answer 6

external pharyngeal slits

Question 7

sensory organs at margins of oral funnel

Answer 7

buccal papillae

Question 8

interior of oral funnel

Answer 8

oral disk

Question 9

region/area dorsal to tongue

Answer 9

mouth

Question 10

small bump between eyes

Answer 10

naris

Question 11

immediately posterior to naris, photoreceptor

Answer 11

pineal eye complex

Question 12

pores arranged in rows between eyes and mouth

Answer 12

lateral line pores

Question 13

midventral depression at posterior end of trunk with anal slit and urogenital pore

Answer 13

cloaca

Question 14

holds urogenital pore, posterior to anus

Answer 14

urogenital papilla

Question 15

hole through which gametes leave the body

Answer 15

urogenital pore

Question 16

support fins

Answer 16

fin rays

Question 17

segmented series of muscular blocks

Answer 17

myomeres

Question 18

connective tissue partitions of muscular blocks

Answer 18

myosepta