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Pes anserinus ("goose foot") refers to the conjoined tendons of three muscles of the thigh. Pes means 'foot' in Latin. In Latin, anser means 'goose', and anserinus means 'goose-like'. Pes anserinus inserts onto the anteromedial (front and inside) surface of the proximal tibia.
The anatomy of bird legs and feet is diverse, encompassing many accommodations to perform a wide variety of functions. [ 1 ] Most birds are classified as digitigrade animals, meaning they walk on their toes rather than the entire foot.
External view of anal spurs on a male, albino Burmese python. The Boinae (a sub-family of boas) possess pelvic or anal spurs on each side of their cloaca. These spurs have a high degree of mobility and can be moved by appropriate musculature from their normal position lying along and against the body, into a perpendicular plane to resemble ...
The leg bones of birds are the heaviest, contributing to a low center of gravity, which aids in flight. A bird's skeleton accounts for only about 5% of its total body weight. They have a greatly elongate tetradiate pelvis, similar to some reptiles. The hind limb has an intra-tarsal joint found also in some reptiles.
Sometimes they report weakness or decreased range of motion. The physician examines the knee in full extension, looking for tenderness in the medial knee joint and across the proximal, medial tibial region, and feels for tenderness along the medial tendons of the pes anserine when the knee is flexed at 90 degrees. [citation needed]
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An external anatomical structure of a bird's head, roughly corresponding with the "nose" of a mammal, that is used for eating, grooming, manipulating objects, killing prey, fighting, probing for food, courtship and feeding young. Although beaks vary significantly in size and shape from species to species, their underlying structures follow a ...
The greylag goose was one of the first animals to be domesticated; this happened at least 3,000 years ago in Ancient Egypt, the domestic subspecies being known as A. a. domesticus. [7] As the domestic goose is a subspecies of the greylag goose they are able to interbreed, with the offspring sharing characteristics of both wild and domestic ...