adductor muscle

adductor muscle
1. Any muscle that adducts or bring parts into apposition.
2. (ARTHROPODA: Crustacea)
In bivalves, muscles attached to the carapace that pull it to the body, or connect the carapace. a. In Barnacles, any transverse muscle, especially those attached to the scutum for closing the aperture.
3. (MOLLUSCA: Bivalvia)
A single posterior or an anterior and posterior muscle connecting the two valves. a. In oysters, the crescent shaped "catch" muscle that holds the valves in a set position, or the "quick" muscle, the main opening and closure muscle.

Online Dictionary of Invertebrate Zoology. . 2005.

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  • adductor muscle — noun a muscle that draws a body part toward the median line • Syn: ↑adductor • Derivationally related forms: ↑adduct (for: ↑adductor) • Hypernyms: ↑skeletal muscle, ↑ …   Useful english dictionary

  • Adductor muscle — The term adductor muscle can have several meanings: * in a broad sense, any muscle that causes adduction can be called an adductor muscle. For example in biology, the muscle or muscles in the interior of a bivalve mollusk which serve to close the …   Wikipedia

  • Adductor muscle — Any muscle that pulls a body part toward the midline. For example, the adductor muscles of the legs pull the legs toward the midline of the body so the legs are closer together. The word “adductor” comes from the Latin prefix “ad meaning “toward” …   Medical dictionary

  • adductor muscle of carapace — Muscle attached to carapace for pulling it to the body (thorax) or connecting halves of bivalve shell (e.g. Conchostraca, Ostracoda, Leptostraca) or valves of cirriped capitulum for closure of them. In Cirripedia, any transverse muscles,… …   Crustacea glossary

  • adductor muscle — ▪ anatomy       any of the muscles that draw a part of the body toward its median line or toward the axis of an extremity (compare abductor muscle), particularly three powerful muscles of the human thigh adductor longus, adductor brevis, and… …   Universalium

  • adductor muscle — Large muscle of bivalve molluscs that is responsible for holding the two halves of the shell closed. Its unusual feature is its ability to maintain high tension with low energy expenditure by using a catch mechanism, and the high content of… …   Dictionary of molecular biology

  • adductor muscle scar — (ARTHROPODA: Crustacea) In Ostracoda, an impression of the adductor muscles on the valve interior, serving for closure of valves …   Dictionary of invertebrate zoology

  • adductor muscle scar pattern — (Class Ostracoda): Rather central pattern of scars (raised or depressed) indicating where central adductor muscles attach to valves; not always clearly visible [Cohen, Peterson, and Maddocks, in press] …   Crustacea glossary

  • adductor muscle great — musculus adductor magnus …   Medical dictionary

  • adductor muscle long — musculus adductor longus …   Medical dictionary

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