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Encyclopedia > Pericranium
Periosteum
compact spongy bone
bone growth
Dorlands/Elsevier p_13/12628368

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). Image File history File links Illu_compact_spongy_bone. ... Image File history File links Illu_bone_growth. ... Elseviers logo Elsevier, the worlds largest publisher of medical and scientific literature, forms part of the Reed Elsevier group. ... Grays illustration of a human femur, a typically recognized bone. ... Cartilage is a type of dense connective tissue. ...


As opposed to bone itself, it has nociceptive nerve endings, making it very sensitive to manipulation. It also provides nourishment in the form of blood supply to the bone. Pain is both a sensory and emotional experience, generally associated tissue damage, or inflammation. ...


The periosteum is connected to the bone by strong collagenous fibers called Sharpey's fibres, which extend to the outer circumferential and interstitial lamellae of bone. Sharpeys fibres (bone fibres, or perforating fibres) are a matrix of connective tissue consisting of bundles of strong collagenous fibres connecting periosteum to bone. ... Lamellae are gill-shaped structures: fine sheets of material held near one another, with open space between. ...


The periosteum contains a store of osteogenic osteoblasts, and thus plays a vital part in the healing of fractures. An osteoblast (from the Greek words for bone and to build) is a mononucleate cell which produces a protein that produces osteoid. ... A fractured bone in a living person is typically treated by restoring the fractured pieces of bone to their natural positions (if necessary), and maintaining those positions while the bone heals. ...


The "pericranium" is the periosteum of the skull. A hippopotamus skull A skull, or cranium, is a bony structure of Craniates which serves as the general framework for a head. ...


External links

  • Histology at BU 02703loa - "Cartilage and Bone and Bone Histogenesis: compact bone"
  • Histology at uwa.edu.au
  • Histology at ou.edu
Bone and cartilage - edit
cartilage: chondroblast, chondrocyte, perichondrium, types (hyaline, elastic, fibrous), fibrocartilage callus, metaphysis

bone: ossification (intramembranous, endochondral, epiphyseal plate), cycle (osteoblast, osteoid, osteocyte, osteoclast), types (cancellous, cortical), regions (epiphysis, diaphysis), structure (osteon/Haversian system, Haversian canals, endosteum, 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. ... 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. ... Cancellous bone (or trabecular bone, or spongy bone) is a spongy type of bone with a very high surface area, found at the ends of long bones. ... Cortical bone is one of two main types of 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. ... Sharpeys fibres (bone fibres, or perforating fibres) are a matrix of connective tissue consisting of bundles of strong collagenous fibres connecting periosteum to bone. ... In histology, a lacuna is a small space containing an osteocyte in bone or chondrocyte in 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. ... Where a part of the skeleton is intended for strength and compactness combined with limited movement, it is constructed of a number of short bones, as in the carpus and tarsus. ... Flat Bones. ... The irregular bones are such as, from their peculiar form, cannot be grouped as long bone, short bone, or flat bone. ... In anatomy, a sesamoid bone is a bone embedded within a tendon. ...


 
 

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