Lab: Sea Star Anatomy Flashcards
What is #1 ? Function?
Aboral Surface; opposite oral side, contains anus
What is #2? Function?
Oral Surface, opposite aboral side, contains mouth
What is #3? Function?
Ray; movement and food consumption
What is #4? Function?
Central Disc; attachment point for 5 rays
What is # 5? Function?
Madreporite; entrance to W.V.S
What is # 6? Function?
Anus; excretion
What is #7 ? Function?
Eyespot; helps detect light in water
What is #8 ? Function?
Mouth; intake of food
What is #9 ? Function?
Oral Spines; guide food to mouth and keep other things out
What is #10 ? Function?
Ambulacral Groove; contains tube feet for movement
What is #11 ? Function?
Tube feet; movement and gripping prey
What is #12 ? Function?
Gonads; gamete production
What is #13 ? Function?
Pyloric Caecae; create digestive enzymes and absorb nutrients from food
What is #14 ? Function?
Cardiac Stomach; extends out of mouth and over digestible portion of meal
What is #15 ? Function?
Pyloric Stomach; release digestive enzymes for further digestion
What is #16 ? Function?
Rectal Bursa; store waste until released via anus
What is #17 ? Function?
Stone Canal; connection point for madreporite
What is #18 ? Function?
Polian Vesicle; maintain water pressure in central ring
What is #19 ? Function?
Ring Canal; connects to external environment via stone canal
What is #20 ? Function?
Radial Canal; run the length of each ray
What is #21 ? Function?
Ampullae; connect to tube feet and contract to pull water in and push out
What is #22 ? Function?
Nerve Ring; provides sensory input to interpret external stimuli
What is #23 ? Function?
Radial Nerve; relay impulses from light, touch, and chemical sensors
What is #24 ? Function?
Ossicles; provide support to body and protection
What is #25 ? Function?
Water Vascular System; maintain water pressure, movement, eating
