Starfish Anatomy and Physiology

What type of symmetry do adult starfish have?

• Radial

• Bilateral

• Asymmetry

• Triangular

What structure do you view on the oral side of the starfish?

• Mouth

• Madreporite

• Spiny skin

• Central disk

What structures do you view on the aboral side of the starfish?

• Madreporite

• Tube feet

• Mouth

• Gonads

Tags

NGSS.MS-LS4-2

What side of the starfish are you viewing?

• Oral

• Aboral

What side of the starfish are you viewing?

• Oral

• Aboral

Starfish have a/an

• Endoskeleton

• Exoskeleton

• No skeleton

What forms the starfish's endoskeleton?

• Ossicles

• Tube feet

• Madreporite

• Spiny skin

Tags

NGSS.MS-LS4-2

How do starfish exchange gases?

• Through skin gills

• Through lungs

• Through the mouth

• Through the madreporite

Where does water enter the starfish for the water vascular system?

• Madreporite

• Ring canal

• Stone canal

• Ambulacral groove

What is the water vascular system of the starfish used for?

• Movement

• Reproduction

• Gas exchange

• Digestion