翻訳と辞書 Words near each other ・ Long Biên ・ Long Biên Bridge ・ Long Biên District ・ Long Biên Railway Station ・ Long black ・ Long Black Limousine ・ Long Black Train ・ Long Black Train (song) ・ Long Black Veil ・ Long block ・ Long Bloee caecilian ・ Long Bluff ・ Long boat rescue ・ Long Body Creek, Manitoba ・ Long Boiler locomotive ・ Long bone ・ Long boom ・ Long Boret ・ Long Bottom, Ohio ・ Long Branch ・ Long Branch (NJT station) ・ Long Branch Aerodrome ・ Long branch attraction ・ Long Branch Cubans ・ Long Branch Dam ・ Long Branch GO Station ・ Long Branch High School ・ Long Branch Loop ・ Long Branch Park ・ Long Branch Pier Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Long bone ： ウィキペディア英語版 Long bone The long bones are those that are longer than they are wide. They are one of five types of bones: long, short, flat, irregular and sesamoid. Long bones, especially the femur and tibia, are subjected to most of the load during daily activities and they are crucial for skeletal mobility. They grow primarily by elongation of the diaphysis, with an epiphysis at each end of the growing bone. The ends of epiphyses are covered with hyaline cartilage ("articular cartilage"). The longitudinal growth of long bones is a result of endochondral ossification at the epiphyseal plate. Bone growth in length is stimulated by the production of growth hormone (GH), a secretion of the anterior lobe of the pituitary gland. The long bones include the femora, tibiae, and fibulae of the legs; the humeri, radii, and ulnae of the arms; metacarpals and metatarsals of the hands and feet, the phalanges of the fingers and toes, and the clavicles or collar bones. The long bones of the human leg comprise nearly half of adult height. The other primary skeletal component of height are the vertebrae and skull. The outside of the bone consists of a layer of connective tissue called the periosteum. Additionally, the outer shell of the long bone is compact bone, then a deeper layer of cancellous bone (spongy bone) which contains in the medullary cavity the bone marrow. ==Structure== The outer shell of the long bone is made of cortical bone also known as compact bone. This is covered by a membrane of connective tissue called the periosteum. Beneath the cortical bone layer is a layer of spongy cancellous bone. Inside this is the medullary cavity which has an inner core of bone marrow made up of yellow marrow in the adult and red marrow in the child. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Long bone」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.