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MARI202 - Lab Two

Terms in this set (30)

Turbellaria
Monogena
Trematoda
Cestoda
What are the 4 classes of platyhelminthes?
acoelomate
What coelom form do flatworms have?
triploblasts
How many tissue layers do they have?
mesenchyme
What kind of tissue do they have?
endoderm
digestive cavity
cilia
mesoderm
ectoderm
Go anticlockwise
gastrovascular cavity
transverse nerve
brain
ventricle nerve cord
genital pore
penis in genital chamber
seminal receptacle
pharynx
sperm duct
testis
yolk gland
ovary
go anti clockwise
dorsal epidermis
posterior intestinal ramus
intestinal cecum
adhesive gland
parenchyma
ventral epidermis
dorsoventral muscle
lumen
gastrodermes
inner muscle
parenchyma
outer muscle
epithelial lining
pharyngeal cavity
pharynx
Anticlockwise
dorsoventral muscle
uacudated gastrodermis
basal lamina
cilia
epidermis
gut lumen
muscle layer
parenchyma
adhesive gland
secretory muscle
intestinal cecum
posterior intestinal ramus
rhabdite
Anticlockwise
tricladia
What class of flatworm?
polycladia
what class of flatworm?
regeneration
sexual - reciprocal exchange of sperm
the fertilized eggs are released and develop directly into flatworms
What kind of reproduction do flatworms do?
Mullers larvae
What are the larvae called?
mesenchyme and the elasticity of the body wall and muscles - longitudinal and circular.
What layers provide compression like a hydrostatic skeleton?
blastocoel
What coelom state do Nemata have?
Triploblastic
How many tissue layers do they have?
It has a cuticle
What is special about the outer layer of the nemata?
Only longitudinal
What muscles do Nemata have?
Renette cells
What unique excretory cells do Nemata have?
pseudocoelom
digestive tract
muscle layer
body covering
You know the deal
Sperm duct
anus
intestine
vulva
uterus
ovary
intestine
excretory system
nerve ring
pharynx
gubernaculum
Go
dorsal nerve
muscle cell
epidermal syncytium
cuticle
body wall
ovary
excretory canal
lateral epidermal cord
oviduct
egg
uterus
blastocoelom
ventral nerve
ventral epidermal cord
muscle arm
intestinal lumen
intestinal epithelium
dorsal epidermal cord
Ribbon
Arrow
What worms are in Nemertea?
triploblastic
How many tissue layers?
proboscis system with poison stylets
What is unique about these animals?
retractor muscle
proboscis cavity
proboscis sheath
proboscis
proboscis opening
mouth
digestive tract
go clockwise
cephalic blood vessel
cerebral ganglion
mouth
esophagus
network of blood vessels
lateral blood vessel
intestinal divertculum
genital pore
dorsal blood vessel
gonad
anus
connecting vessel
go down
proboscis canal
proboscis
proboscis sheath
gut
dorsal blood vessel
longitudinal muscle
circular muscle
lateral nerve cord
lateral blood vessel
mesenchyme
dermis
epidermis
rhynchocoel
anticlockwise
asexual
regeneration
sexual- fertilisation occurs in water column
What type of reproduction?
Nermertean pilidium
what larvae is this?
closed circulatory system
what feature allows them to grow so large?
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