Practical 2 Flashcards
Sponge: osculum
water exits after passing through the spongcoesl
Sponge: ostia
Lets water in
Sponge: spongocoel
large, central cavity of sponge
Sponge spicule
skeletal element
Hydra: epidermis
serves as protection
Hydra: endodermis
inside hydra??
Hydra: mesoglea
Flexibility
Hydra: tentacles and Cnidocyte
sting cells
Hydra: gastrovascular cavity
extra cellular digestion
Hydra: mouth
food enters here
Hydra: foot
attaches to rocks
Worm: setae
Help anchor and control when moving through soil
Worm: clitellum
Used for sexual purpose
Worm: segment
Help separate internal cavities into sections of different organs
Worm: septa
dividing wall between segments
Worm: Coelom
acts as a protective cushion for organs
Worm: crop
food storage area
Worm: Gizzard
grinds the food
Worm: intestine
waste to anus
worm: hearts
pumps blood through the body
Worm: cereal ganglion
brain of the earthworm
worm: nephridia
filters waste from the blood
Mussel: shell
protection
Mussel: mantle
makes the shell
Mussel: foot
aids in movement
Mussel: adductor muscle
open and closes the clam
Mussel: incurrent siphon
takes food and particles from respiration and feeding
Mussel: excurrent siphon
releases carbon dioxide and releases waste
Mussel: gills
gets oxygen from water
Mussel: digestive glands
secrets digestive enzymes
Mussel: intestine
transports waste, completes digestion, absorbs nutrients
Mussel: heart
aids in circulation
Crayfish: cephalothorax
hard and thorax fused together
Crayfish: abdomen
the tail
Crayfish: carapace
protects gills, provides a water channel
Crayfish: eyes
focuses light
Crayfish: antennae
touch, taste, and smell
crayfish: antennules
balance, touch and taste
Crayfish: mouth
where food enters
crayfish: walking legs
to walk
crayfish: chelipeds
self defense, getting food
Crayfish: gills
used for getting oxygen from the water
crayfish: stomach
stores and chews food
crayfish: green glands
filters liquid waste out of blood
crayfish: heart
pumps blood through out organism