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Vertebrate Zoology -- Osteichthys Dissections
vocabulary terms for the osteichthys lab covering bowfin and perch
61
Biology
Undergraduate 3
03/21/2010

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Term
Nasal
Definition
forwardmost bone in nose region
Term
frontal
Definition
flat bone on dorsal side of bowfin skull
Term
postinfraorbitals
Definition
bone plates posterior to the orbital region in bowfin
Term
parietal
Definition
bone posterior to frontal on dorsal side of bowfin head
Term
maxilla
Definition
upper jawbone in bowfin
Term
premaxilla
Definition
forwardmost part of maxilla in bowfin
Term
lacrimal
Definition
bone just anterior to orbital region (tear glands located here in humans)
Term
dentary
Definition
lower jawbone with teeth attached in bowfin
Term
gular
Definition
bone on ventral side of head, can be a flap downwards in bowfin
Term
angular
Definition
bone just posterior to dentary
Term
ceratohyal
Definition
bone just posterior to gular, has branchiostegals attached
Term
opercle
Definition
big round bone on posterior end of the side of the head
Term
preopercle
Definition
in front (anterior) to the opercle
Term
subopercle
Definition
bone below opercle
Term
ropercle
Definition
bone between branchiostegals and opercle bones.
Term
frontal (perch)
Definition
flat bone above eye
Term
hyomandibular (p)
Definition
bone in front of preoperculum (becomes stapes and inner ear in humans)
Term
infraorbitals (p)
Definition
small bones at posterior of eye
Term
nasal (p)
Definition
bone at nose, in front of orbit
Term
lacrimal (p)
Definition
anterior and slightly ventral to orbit (where tear glands would be)
Term
premaxilla (p)
Definition
small bone in front of maxilla
Term
maxilla (p)
Definition
upper jaw
Term
metapterygoid
Definition
ventral to hyomandibular, dorsal/posterior to quadrate
Term
quadrate (p)
Definition
ventral to metapterygoid, posterior/dorsal to articular
Term
branchiostegal rays (p)
Definition
rays along ventral side of head, ventral to interoperculum
Term
operculum (p)
Definition
large bone posterior to preoperculum
Term
preoperculum
Definition
anterior to operculum (serrated edge in perch)
Term
suboperculum
Definition
underneath and to back of operculum
Term
interoperculum
Definition
underneath operculum and preoperculum, and above branchostegals
Term
anterior dorsal fin
Definition
(spiny-rayed dorsal fin)
Term
lateral line
Definition
line along body
Term
posterior dorsal fin
Definition
soft-rayed dorsal fin
Term
caudal fin
Definition
tail
Term
anal fin
Definition
posterior, ventral fin below anus
Term
pectoral fin
Definition
paired fin on side of perch on anterior end
Term
pelvic fin
Definition
fin on ventral side of perch, just dorsal and ventral to pectoral fin
Term
opercular region
Definition
region where operculum covers gill opening
Term
preopercular region
Definition
region in front of opercular region
Term
branchiostegal rays
Definition
lines below opercular region
Term
mandible (outside)
Definition
lower jaw
Term
maxilla (outside)
Definition
upper jaw
Term
naris
Definition
nose holes
Term
spleen
Definition
dark, posterior to stomach
Term
stomach
Definition
large, white tube in middle of coelom, connects to esophagus
Term
gallbladder
Definition
dark, connected to/near liver
Term
liver
Definition
should be large and at head of coelom
Term
esophagus
Definition
tube at head of stomach, white
Term
transverse septum
Definition
membrane between pericardial cavity and rest of coelom
Term
ventricle
Definition
largest, most posterior
Term
atrium
Definition
more anterior than ventricle
Term
bulbus arteriosus
Definition
similar to conus arteriosus, connected to ventricle
Term
pyloric ceca
Definition
tubules off of head of small intestine (beneficial bacteria live here)
Term
small intestine
Definition
tube running from stomach to rectum
Term
rectum
Definition
end of small intestine
Term
anus
Definition
more anterior hole
Term
urogential aperture
Definition
more posterior hole
Term
urinary bladder
Definition
in very back of coelom, behind testes in males, white
Term
kidney
Definition
dorsal side of coelom
Term
swim bladder
Definition
large, dark structure running in dorsal side of coelom
Term
testes
Definition
large white structures in posterior side of coelom in males
Term
eggs (ovary)
Definition
eggs cover everything in coelom in females
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