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The muscles that are found at openings of the body are collectively called?
Sphincters (circular muscles)
Where is circular muscles usually found?
around the eyes and lips
What function does the circular muscle serve in the earthworm?
Circular muscles help in extension and narrowing of the body of the earthworm. When circular muscles contract the protractor muscles relax causing the retractor muscles to contract, thus withdrawing the setae.
What muscles are involved in gidestion?
smooth muscles(circular and longitudial)
What are the two types of muscles earthworms have?
circular muscleslongitudinal muscles
What muscles are responsible for pupil construction and dilation?
circular muscles
What happen to the shape of the earthworm when the circular muscles contract?
The segments elongate when the circular muscles contract.
What is the circular muscles that help keep urine from leaking?
Sphincter Muscles
Muscles that encircle tubes and act as circular valves are called?
Sphincter muscles. They are smooth muscles found in various parts of the body, such as the digestive system and urinary tract, and control the opening and closing of tubes or openings.
What is The movement of earthworms dependent on?
circular muscles
What are the two major groups of body muscles in annelids called?
Circular and Longitudinal muscles.
What two muscles of facial expression that are circular and their function?
The two facial muscles that are circular are the Orbicularis Oculi(around eye), and the Orbicularis Oris(around mouth).
