bone: ossification (intramembranous, endochondral, epiphyseal plate), cycle (osteoblast, osteoid, osteocyte, osteoclast), types (cancellous, cortical), regions (epiphysis, diaphysis), structure (osteon/Haversian system, Haversian canals, periosteum, Sharpey's fibres, lacunae, canaliculi, trabeculae, medullary cavity, bone marrow), shapes (long, short, flat, irregular, sesamoid) For the unrelated Jesuit university in Chestnut Hill, see Boston College. ... eMedicine is an online clinical medical knowledge base that was founded in 1996. ... The University of Oklahoma, often called OU or Oklahoma, is a coeducational public research university located in the U.S. state of Oklahoma. ... The femur or thigh bone is the longest, most voluminous, and strongest bone of the human body. ... Grays illustration of a human femur, a typically recognized bone. ... Cartilage is a type of dense connective tissue. ... Cartilage is a type of dense connective tissue. ... A chondroblast is a cell, which originates from a mesenchymal stem cell and forms Chondrocytes, commonly known as cartilage cells. ... Chondrocytes (< Greek chondros cartilage + kytos cell) are the only cells found in cartilage. ... The perichondrium is a layer of dense connective tissue which surrounds the cartilage. ... Cartilage is type of dense connective tissue. ... Cartilage is type of dense connective tissue. ... Cartilage is type of dense connective tissue. ... A fibrocartilage callus is a temporary fibrocartilage callus which forms as bone attemps to heal a fracture. ... The metaphysis is the body of cartilage that separates the epiphyses and the diaphysis of long bones during growth. ... Grays illustration of a human femur, a typically recognized bone. ... Ossification is the process of bone formation, in which connective tissues, such as cartilage are turned to bone or bone-like tissue. ... Osteoblasts and osteoclasts on trabecula of lower jaw of calf embryo. ... Section of fetal bone of cat. ... The long bones are those that are longer than they are wide, and grow primarily by elongation of the diaphysis at an epiphysis at one end of the growing bone. ... An osteoblast (from the Greek words for bone and to build) is a mononucleate cell which produces a protein that produces osteoid. ... Osteoid is a protein mixture which is secreted by osteoblasts. ... An osteocyte, a star-shaped cell, is the most abundant cell found in bone. ... An osteoclast is a multinucleated cell that degrades and reabsorbs bone. ... For other uses of the word bone, see bone (disambiguation). ... The diaphysis is the main or mid section (shaft) of a long bone. ... Osteons (cross section) Osteons (also called Haversian system in honor of Clopton Havers) are predominant structures found in some lamellar or compact bone. ... Haversian canals are a series of tubes around narrow channels formed by lamellae. ... The periosteum is an envelope of fibrous connective tissue that is wrapped around the bone in all places except at joints (which are protected by cartilage). ... Canaliculi are small, microscopic canals between the various lacunae of ossified bone. ... Definition and etymology trabeculae. ... The medullary cavity is the central cavity of bone shafts where yellow marrow (adipose) is stored. ... Grays Anatomy illustration of cells in bone marrow. ... The long bones are those that grow primarily by elongation at an epiphysis at one end of the growing bone. ... In anatomy, a sesamoid bone is a bone embedded within a tendon. ...