Femur

femur
thigh bone or the third segment of an insect leg from the proximal (near) end
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby ...
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femur Podomere of an insect or acarine leg fixed to the trochanter proximally and articulating with the tibia distally in insects and with the patella in acarines.
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femur
The thigh bone of tetrapods.
Covered in Lab 13 Animal Diversity III ...
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Gray's illustration of a human femur, a typically recognized bone.
Bone, also called osseous tissue, (Latin: "os") is a type of hard endoskeletal connective tissue found in many vertebrate animals.
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Gray's illustration of a human femur, a typically recognized bone.
Bone refers either to a hardened connective tissue or to one of the individual structures, or organs, into which it is formed, found in many animals.
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The spongy bone of the femur, humerus, and sternum contains red marrow, in which stem cells reproduce and form the cellular components of the blood and immune system. Yellow marrow, at the center of these bones, is used to store fats.
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The diagram below depicts the structure of a typical long bone such as the femur.
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It's hind limb has a short femur and a slightly shorter fibula and tibia. It has no thumb and a greatly reduced second digit. The other three fingers are quite long (relatively). In short, another variation of the basic mammalian leg.
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