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Results for “membrane”

Ichthyological terms, not general ones.

Species 10Articles 1Glossary 27

  • membrane

    Thin, usually flexible layer of tissue covering, lining, separating, or connecting cells or parts of an organism.

    Used in 67 profiles

  • branchiostegal membrane

    The membrane, sometimes referred to as the gill membrane, connecting the branchiostegal rays and enclosing the ventral portion of the branchial cavity. Normally extended when the opercle of a fish is open, sealing the branchial cavity and creating a vacuum in the mouth, and also used during threat, courtship and other communicative behaviours in many species.

    Used in 5 profiles

  • membranous

    Relating to, composed of or similar to a membrane.

    Used in 8 profiles

  • eukaryotic

    A single-celled or multicellular organism possessing cells containing a membrane-bound nucleus.

  • prokaryote

    Normally unicellular organisms possessing cells without a membrane-bound nucleus.

  • prokaryotic

    Possessing cells without membrane-bound nuclei. Typical in bacteria and cyanobacteria.

  • reverse osmosis

    Form of purification, often abbreviated to RO, that removes dissolved salts and other impurities from water by applying pressure to it on one side of a semipermeable membrane. Pure water molecules are able to pass through the membrane while the majority of others are not, with more-or-less pure water the result. Sometimes used in combination with deionisation to remove additional mineral ions. Pure water can be harmful to fishes and is normally remineralised to some degree using proprietary products.

    Used in 2 profiles

  • villus

    In biology, a minute, hairlike process present on certain membranes, such as the mucous membrane in the small intestine of many vertebrates. Typically has a sensory or absorptive function.

  • arthrobranch

    A decapod gill associated with the articular membrane between the coxa of an appendage and the body.

  • branchiostegal ray

    One of the dermal, bony (sometimes cartilaginous), bilaterally paired, flattened struts inserting on the epihyal and/or ceratohyal (sometimes the interhyal and hypohyal) that supports the branchiostegal membranes.

    Used in 4 profiles

  • dermal bone

    Bone-type ossifying directly from connective tissue membranes and thus lacking a cartilaginous predecessor. Tend to be more numerous in primitive fish forms.

    Used in 5 profiles

  • ectopterygoid

    A membrane, paired, bone in the upper jaw, located ventrally on the skull. Some fishes, such as serrasalmids, possess small tooth-like projections known as ectopterygoid teeth on this bone.

    Used in 4 profiles

  • eyed egg

    A fish egg within which the embryo has developed to a point whereby the eyes are visible through the external membrane.

  • fin

    Membranous appendage supported by cartilage or bony rays. Used for locomotion, steering, and balance by fishes and some other aquatic organisms.

    Used in 800 profiles

  • fontanelle

    Non-ossified, usually membranous gap between cranial bones.

    Used in 66 profiles

  • frenum

    A connecting or restraining membrane, such as that connecting the tongue to the base of the mouth.

    Used in 17 profiles

  • gill

    Respiratory organ of fishes and some other aquatic organisms comprising a highly-vascularised membrane or outgrowth.

    Used in 314 profiles

  • integument

    Outer protective covering, e.g., the skin of an organism or the membrane enclosing an organ.

    Used in 1 profile

  • lamella

    Thin layer, plate, scale, or membrane of bone or other tissue.