By: Abby Kowalczyk
The integumentary system is the outer covering of the body (skin, hair, nails etc..) The integementary system of the Brittle Star includes a thin cuticle, epidermis, and dermis. The dermis is very thick and is made out of connective tissues, it contains an endoskeleton of calcium carbonate that keeps the outer covering durable. The Brittle Star has a radial symmetry, some can be bilateral but most have the strongest tendency to be radial. On the Brittle Star there are five arms that connect to a middle disk. In the Brittle Star, the middle disk is much more prominent than it is in other starfish. There are no ears of nostrils on the Brittle Star but it does have a mouth. The mouth is located at the bottom of the star and it contains five teeth and very strong jaws. The mouth also doubles as the anus to get rid of waste. On each of the five arms of the Brittle Star there are short spins to protect the animal. The Brittle Star spins it's arms to move fast through the water. The Brittle Star is the fastest starfish there is. The color of the Brittle Star is primarily brown but can be blue, grey, and a variety of bright colors.
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Skeletal and Muscular System
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The Respiratory System
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The Circulatory System
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Digestion and Excretory System
How a Brittle Star Captures Food
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