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The setae are small spines which are projected from the body wall by muscles to act as anchors in the surface that the worm is moving along. The muscle can also retract the setae
The circular muscles contract and expand in co-ordination with the longitudinal muscle in series such as that if the posterior muscle are expanded and the anterior circular muscles are contracted the worm pushes and stretches its front end forward. The anterior muscles then expand to anchor its front end by use of the setae and the rear end is pulled forward. All this happens in a smooth and rhythmic motion.
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FranEach bristle is a seta; plural of seta is setae.
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On what area of the earthworm body do these bristles appear?
The bristles along the body of an earthworm are called the Setae,which are set along its segmented length. In all the body segments except the first, last and clitellum, there is a ring of S-shaped setae embedded in the epidermal pit of each segment.
What does a setae on a earthworm do?
Setae are bristles or hair-like structures that help attach the earthworm to the ground and create friction so if an earthworm is going down a hill, it would slide down but actually continue to move through hydrostatic pressure.
What is the front of an earthworm called?
it has slime on the covering of it's body!
How do bristles help earthworms?
The bristles are called setae or chaetae. They are 's' shaped and are made up of chitine. They aid in locomotion.
What is a baby earthworm called?
i believe it is called hatchling.
