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Patagium

Patagium

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  • In bats, the skin
    Skin
    The skin is the outer covering of the body. In humans, it is the largest organ of the integumentary system made up of multiple layers of mesodermal tissue, and guards the underlying muscles, bones, ligaments and internal organs. Skin of a different nature exists in amphibians, reptiles, birds...

     forming the surface of the wing. It is an extension of the skin of the abdomen that runs to the tip of each digit, uniting the forelimb with the body.
  • The patagium of a bat has four distinctions:
    1. Propatagium: the patagium present from the neck to the first digit.
    2. Dactylopatagium: the portion found within the digits.
    3. Plagiopatagium: the portion found between the last digit and the hindlimbs.
    4. Uropatagium: the anterior portion of the body between the two hindlimbs.

  • In gliding
    Flying and gliding animals
    A number of animals have evolved aerial locomotion, either by powered flight or by gliding. Flying and gliding animals have evolved separately many times, without any single ancestor. Flight has evolved at least four times, in the insects, pterosaurs, birds, and bats. Gliding has evolved on many...

     species, such as some lizards
    Lizard
    Lizards are a very large and widespread group of squamate reptiles, with nearly 5,000 species, ranging across all continents except Antarctica as well as most oceanic island chains...

    , rodents
    Rodent
    Rodentia is an order of mammals also known as rodents, characterised by two continuously growing incisors in the upper and lower jaws which must be kept short by gnawing....

     and other mammals, the flat parachute
    Parachute
    A parachute is a device used to slow the motion of an object through an atmosphere by creating drag. Parachutes are made out of cloth, most commonly nylon....

    -like extension of skin that catches the air, allowing them to glide.

  • In some lepidopterans
    Lepidoptera
    Lepidoptera is an order of insects that includes moths and butterflies. It is one of the most speciose orders in the class Insecta, encompassing moths and the three superfamilies of butterflies, skipper butterflies, and moth-butterflies...

    , one of a pair of small sensory organs situated at the bases of the anterior wings.

  • In birds, the fold of skin extending from the humerus
    Humerus
    The humerus is a long bone in the arm or forelimb that runs from the shoulder to the elbow....

     to the carpal joint
    Carpus
    In tetrapods, the carpals is the sole cluster of the bones in the wrist between the radius and ulna and the metacarpus. The bones of the carpus do not belong to individual fingers , whereas those of the metacarpus do. The corresponding part of the foot is the tarsus...

    , making up the leading edge of the wing.