Starfish Parts
This white disc on the aboral surface is the ________________ Madreporite Its function is _______________________ Let water into
water vascular system
A=?
ampulla
A
Its function is to Squeeze to control water ___________________________ entering/leaving tube feet
stomach This organ is the _____________
LABEL THE PARTS of the Water Vascular system
#2
#1 = __________ ring canal __________ #2 = ____________ Stone dfsdf canal #3 = ampullae ________________
#1 #3
A Digestive glands
B
gonads
C ossicles
This diagram represents the 3 structures you learned about on the surface of a starfish.
spines The blue structures are _____________ protection for _____________________. The red structures are ____________ Skin gills for Exchanging gases/removing nitrogen waste ____________________ The green structure is a _____________ pedicellaria for _________________________ keeping the surface free of organisms
A mouth
B
Ambulacral groove with tube feet
These are located in the ambulacral groove Tube feet
Their function is ?
Locomotion, suction cups can grab food, pry open clam shells, surface can exchange gases and nitrogen waste
This opening on the oral surface is the _____________ mouth
This seastar is showing aboral you its ___________ surface.
This tube is the ______________ Stone canal It has Calcium _______________ carbonate _______________ in it to make it hard. madreporite It connects the _______________________ to the ___________________ ring canal
A
B
spines
Tube feet
C ambulacral groove
The arrow is pointing at the Ambulacral ________________ ridge ___________
The part of the water vascular system that is found inside this ridge is the Radial canal ______________________ The part of the nervous system that is Radial nerve found inside is the _________________
These 3 arms farthest from the madreporite are called the _______________ trivium
This starfish is showing you its oral _____________ surface.
Identify A
Ring canal
A
Tell the function of each part:
Opening for water vascular system _____________________ madreporite Absorb nutrients _____________________ Digestive glands Connect madreporite Stone canal to ring canal ______________________ Plates that fuse to form ossicles skeleton ______________________ Make sperm or eggs _________________ gonads Exchange gases and get rid of nitrogen waste _________________ Skin gills
These structures that lie under the digestive glands are the gonads ________________ Their function is to ____________________ Make eggs or sperm Their body system is _______________ reproductive
These are located at the tip of each arm
eyespots Their function is To sense light and dark ______________________
Tell the function of each part:
Keep skin free of organisms _____________________ pedicellariae Extruded out through mouth during feeding Cardiac stomach ________________ Stomach that connects to digestive glands ______________________ Pyloric stomach Squeeze to move water up and down in tube feet _________________ ampullae spines Spikes on surface for protection _____________
This white disc on the aboral surface is the ________________ madreporite
It belongs to the Water vascular ____________________ system Its function ________________ entering the WVS Opening for water
This part of the stomach connects to the mouth
cardiac
ID THE PARTS SHOWN
A B
E
C
D
MADREPORITE A = _________________ STONE CANAL B = _________________ RING CANAL C = _________________ RADIAL CANAL D = _________________
F
AMPULLAE E = ___________________ TUBE FEET F = ___________________
The digestive glands connect to the pyloric __________________ stomach.
cardiac The ___________________ stomach is extruded out of the mouth during feeding
This space around the organs is the ________________ coelom
Type of body cavity found in echinoderms
Acoelom Pseudocoelom Eucoelom
EUCOELOM
These 2 arms closest to the madreporite are called the _______________ bivium
Identify B (seen as bubbles along ambulacral ridge)
B
ampulla
Squeeze to move water Its function is ____________________ up and down in tube feet
#1
#2
#4
#3
Stone canal #1 = _______________ Ambulacral ridge #2 = _______________ ampullae #3 = _______________ Ring canal #4 = _________________
Pyloric stomach A= __________________________ Cardiac stomach B=__________________________ Digestive glands C= __________________________ D=__________________________ anus mouth E= __________________________
These greenish brown structures are the ________________ Digestive glands Tell their functions Make bile ____________________ Finish digestion ____________________ Absorb nutrients ____________________
These white structures on the surface are ________________ spines
They connect down below to the skeleton _____________ underneath. Their function is ________________ protection
Echinoderm larva with wings bipinnaria ________________ Type of symmetry seen in the larval form bilateral ____________________
Type of symmetry seen in adult echinoderms ________________ radial