Practical Study Lab 5 - Dogfish Image Labeling

female spiny dogfish- (1)

ovary

female spiny dogfish- (2)

ovum

female spiny dogfish- (3)

stomach

female spiny dogfish- (4)

ruga

female spiny dogfish- (5)

fused anterior end of oviducts

female spiny dogfish- (1)

stomach

female spiny dogfish- (2)

spleen

female spiny dogfish- (3)

(uterus) - empty because fetuses removed

female spiny dogfish- (4)

rectal gland

female spiny dogfish- (5)

valvular intestine

female spiny dogfish- (1)

papilla

female spiny dogfish- (2)

ruga

what does the red line show ?

approx junction of esophagus and stomach

female spiny dogfish section through gill arches- (1)

first external gill slit

female spiny dogfish section through gill arches- (2)

second gill chamber

female spiny dogfish section through gill arches- (3)

gill filaments

female spiny dogfish section through gill arches- (4)

fourth branchial septum

female spiny dogfish section through gill arches- (5)

scapulocoracoid

female spiny dogfish section through gill arches- (6)

second internal gill slit

spiny female dogfish- (1)

gill arch

spiny female dogfish- (2)

lumen of pharynx

spiny female dogfish- (3)

external gill slit

spiny female dogfish- (4)

fused anterior ends of oviduct

spiny female dogfish- (5)

ostium

frontal section of gill arches- (1)

external gill slits 1,2,3,4, and 5

frontal section of gill arches- (2)

gill chambers 1,2,3,4, and 5

frontal section of gill arches- (3)

posterior gill in second gill chamber

frontal section of gill arches- (4)

septum of second gill arch (fourth pharyngeal arch)

frontal section of gill arches- (5)

anterior gill in third gill chamber

female spiny dogfish- (1)

ventricle

female spiny dogfish- (2)

atrium

female spiny dogfish- (3)

conus arteriosus

female spiny dogfish- (4)

ventral aorta

female spiny dogfish- (5)

pericardium

female spiny dogfish- (6)

liver

female spiny dogfish- (1)

(opisthonephros) - lying dorsal to peritoneum

female spiny dogfish- (1)

incurrent left nostril

female spiny dogfish- (2)

excurrent left nostril

female spiny dogfish- (1)

valvular intestine

female spiny dogfish- (2)

spiral valve

female spiny dogfish- (3)

pancreas

female spiny dogfish- (4)

duodenum

female spiny dogfish- (5)

stomach

female spiny dogfish- (6)

spleen

female spiny dogfish- (7)

liver

female spiny dogfish- (1)

right uterus

female spiny dogfish- (2)

left uterus

female spiny dogfish- (3)

rectum

female spiny dogfish- (4)

cloaca

female spiny dogfish- (1)

eyeball

female spiny dogfish- (2)

spiracle

female spiny dogfish- (1)

uterus

female spiny dogfish- (2)

rectal gland

female spiny dogfish- (3)

spleen

female spiny dogfish- (4)

stomach

female spiny dogfish- (5)

pancreas

female spiny dogfish- (6)

valvular intestine

female spiny dogfish- (7)

spiral valve

female spiny dogfish- (8)

rectum

?

vent with rectum partially everted out

male shark- (1)

testis

male shark- (2)

vas deferens