Phylum Annelida

Annelid Characteristics

triploblastic, eucoelomate, segmentation, trans-cuticular gas exchange, closed circulatory system, excretion via nephrite, advanced nervous system

name the embryonic tissues of a triploblastic

endoderm, mesoderm, ectoderm

Polychaetes environment

marine environment only

name the red

seminal receptacles

name the orange

heart

name the yellow

buccal cavity

name the light green

pharynx

name the dark green

septa

name the light blue

crop

name the dark blue

seminal vesicles

name the light purple

blizzard

name the dark purple

dorsal blood vessel

aortic arches

heart

red

cuticle

orange

epidermis

yellow

circular muscle

light green

longitudinal muscle

dark green

peritoneum

baby blue

nephridium

light blue

setae

dark blue

ventral nerve cord

lavender

ventral blood vessel

light purple

intestinal cavity

dark purple

coelom

gray

typhilosole

black

dorsal blood vessel

Lumen

derived from the embryonic endoderm

Typblosole

prominent in-folding of the intestine, allows for more surface area, formed from mesodermal tissue