Practical 1 Flashcards
Caudal fin
Back fin
dogfish - heterocercal
perch - homocercal
Dogfish fins
pectoral
pelvic
anterior dorsal
posterial dorsal
perch fins
anterior dorsal posterior dorsal anal pectoral pelvic
ampullae of lorenzini
lateral line
dogfish sensory
ampullae - rostrum holes (electric current sensing)
lateral line - line on body (movement sensing) (dogfish and perch)
nose
dogfish (incurrent aperture outside, excurrent inside) perch - anterior and posterior naris cat - external nares pigeon - external nares bullfrog - external nares
spiracle
dogfish holes behind eyes
water to gills when eating
cloaca
dogfish (claspers on male)
bullfrog (cloacal opening - not between legs, urogenital and digestive)
pigeon (cloacal aperture)
anus
perch
cat
opercular flap
perch flap behind eyes covers gill slits
caudal peduncle
perch before caudal fin
frontal organ
frog spot between eyes
senses light
pterylae
pigeon
orderly formation of feathers
apteria
pigeon
featherless area under body
pigeon feathers
contour - body remiges - wing (secondary in, primary out) retrices - tail tip coverts (contour wing) alula (mini wing tip)
uropygial gland
pigeon gland at base of body
produces oils and wax
