Short BonesĪ short bone is one that is cube-like in shape, being approximately equal in length, width, and thickness. Long bones function as rigid bars that move when muscles contract. Long bones are found in the upper limbs (humerus, ulna, radius) and lower limbs (femur, tibia, fibula), as well as in the hands (metacarpals, phalanges) and feet (metatarsals, phalanges). Keep in mind, however, that the term describes the shape of a bone, not its size. Long BonesĪ long bone is one that is cylindrical in shape, being longer than it is wide. Figure 6.2.1 – Classifications of Bones: Bones are classified according to their shape. Like other structure/function relationships in the body, their shapes and their functions are related such that each categorical shape of bone has a distinct function. The 206 bones that compose the adult skeleton are divided into five categories based on their shapes ( Figure 6.2.1). Describe the function of each category of bones.Classify bones according to their shapes. Any duplication or distribution of the information contained herein is strictly prohibited.By the end of this section, you will be able to: Links to other sites are provided for information only - they do not constitute endorsements of those other sites. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. This site complied with the HONcode standard for trustworthy health information from 1995 to 2022, after which HON (Health On the Net, a not-for-profit organization that promoted transparent and reliable health information online) was discontinued. Learn more about A.D.A.M.'s editorial policy, editorial process and privacy policy. is among the first to achieve this important distinction for online health information and services. follows rigorous standards of quality and accountability. is accredited by URAC, for Health Content Provider (URAC's accreditation program is an independent audit to verify that A.D.A.M.
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