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  Encyclopedia of Keywords > Medicine > Anatomy > Tissues > Cartilage > Ossification   Michael Charnine

Keywords and Sections
OSSIFICATION OCCURS
ENDOCHONDRAL OSSIFICATION
LONG BONES
WOVEN BONE
CARTILAGE
SECONDARY OSSIFICATION
CALCIFIED CARTILAGE
INTRAMEMBRANOUS OSSIFICATION
GROWTH PLATE
BONE GROWTH
UNDERGO
FORMATION
EMBRYO
PRIMARY OSSIFICATION
CENTERS
FIELDS
BEGINS
EXTENDS TOWARD
OSSIFIED
DEVELOPS
SECONDARY CENTERS
SPONGY BONE
TYPES
PHYSIS
ADOLESCENTS
SIX WEEKS
FIGURE
PUBERTY
REPLACEMENT
ELBOW
COMPLETE
AGE
CHILDHOOD
PLAN
VERTEBRAE
SPINE
LIMB
MEMBRANOUS OSSIFICATION
MEMBRANOUS
DIFFERENTIATION
COLLAGEN
BONE FORMING CELLS
SPICULES
AURICLE
ADULTHOOD
POSTNATALLY
Review of Short Phrases and Links

    This Review contains major "Ossification"- related terms, short phrases and links grouped together in the form of Encyclopedia article.

Definitions

  1. Ossification is the gradual transition from a soft template to bone. (Web site)
  2. Ossification - The process of forming bone in the body.
  3. Ossification is the gradual transition from a fibrous or cartilaginous template to bone.
  4. Ossification (or osteogenesis) is the process of laying down new bone material by cells called osteoblasts.
  5. Ossification is the process of bone formation, in which connective tissues, such as cartilage are turned to bone or bone-like tissue. (Web site)

Ossification Occurs

  1. The first site of ossification occurs in the primary center of ossification, which is in the middle of diaphysis (shaft).
  2. As the name might suggest ( endo - within, chondro - root for cartilage), endochondral ossification occurs by replacement of hyaline cartilage. (Web site)
  3. This suggests that COX-2-selective NSAIDs impair fracture healing in the soft callus where endochondral ossification occurs.

Endochondral Ossification

  1. Endochondral ossification is a multistep process, which starts with the formation of a cartilage template. (Web site)
  2. Bones grow in length at the epiphyseal plate by a process that is similar to endochondral ossification.
  3. Long, short, and irregular bones develop by endochondral ossification, where cartilage is replaced by bone.
  4. T or F: All bones of the limb girdle form from the ossification of cartilaginous precursors by a process known as endochondral ossification.
  5. Also occurring during embryonic development is endochondral ossification, a process in which bones are produced from cartilage.

Long Bones

  1. Endochondral ossification, on the other hand, occurs in long bones, such as limbs; the bone is formed from cartilage. (Web site)
  2. In reptiles each long bone has a single centre of ossification, and replacement of cartilage by bone proceeds from the centre toward the ends. (Web site)
  3. Ossification of long bones occurs as bone tissue replaces cartilage.
  4. As remodeling progresses in long bones, a new center of ossification develops, this one at the swollen ends of the bone, called the epiphysis. (Web site)
  5. In the long bones there is a central point of ossification for the body or diaphysis: and one or more for each extremity, the epiphysis. (Web site)

Woven Bone

  1. But growth in thickness is due to intramembranous ossification forming compact bone, which occurs beneath the periosteum and can continue.
  2. In the Zone of Ossification, osteoblasts differentiate from marrow mesenchyme. (Web site)
  3. These areas of enchondral ossification eventually progress to woven bone and then lamellar bone. (Web site)
  4. A layer of woven bone (the periosteal collar) develops around the central shaft of the cartilage as a result of intramembranous ossification.

Cartilage

  1. Ossification takes place in the membrane covering the outer surface of the ventral end of Meckel's cartilage (Figs.
  2. Endochondral Ossification occurs when a bone is formed from a hyaline cartilage model. (Web site)
  3. This type of ossification is distinct from endochondral ossification, a process that involves initial formation of cartilage and later replacement by bone. (Web site)
  4. Unlike endochondral ossification, which is the other process, it does not require a pre-existing cartilage model.
  5. Next, ossification occurs in the epiphyses, where bone replaces cartilage, except for the epiphyseal plate.

Secondary Ossification

  1. Secondary ossification occurs after birth, and forms the epiphyses of long bones and the extremities of irregular and flat bones. (Web site)
  2. DEVELOPMENTAL ANATOMY OF THE SKELETAL SYSTEM Bone forms from mesoderm by intramembranous or endochondrial ossification.
  3. Secondary ossification centers appear in the epiphyses—spongy bone forms from them.
  4. Premature closure of cranial sutures in intramembranous ossification is a feature of syndromes due to mutations in fibroblast growth factor receptors. (Web site)
  5. The end of a each long bone or the regions of secondary ossification is called an epiphysis.

Calcified Cartilage

  1. Chondrodystrophies are a group of diseases characterized by disturbance of growth and subsequent ossification of cartilage. (Web site)
  2. The styloid process arises from endochondral ossification of the cartilage from the second branchial arch. (Web site)
  3. Osteoclasts partially resorb the calcified cartilage with concurrent angiogenesis at the site of endochondral ossification.
  4. The osteoblasts use the calcified cartilage matrix as a template to build bone, thus completing endochondral ossification. (Web site)

Intramembranous Ossification

  1. Intramembranous ossification mainly occurs during formation of the flat bones of the skull; the bone is formed from mesenchyme tissue. (Web site)
  2. Antler pedicles are formed and increase in diameter through intramembranous ossification.
  3. The viscerocranium, like the neurocranium, develops through endochondral and intramembranous ossification. (Web site)
  4. Direct ossification of mesenchyme is called intramembranous ossification.
  5. Intramembranous ossification mainly occurs during formation of the flat bones of the skull; the bone is formed from mesenchyme tissue.

Growth Plate

  1. Beyond 3 weeks of age, apoptosis, vascularization, and ossification remodeled this giant growth plate to produce bones of normal appearance. (Web site)
  2. IL-6-transgenic mice also showed impaired development of growth plates and epiphyseal ossification centers.
  3. This micrograph of the epiphyseal growth plate shows the dynamic process of endochondral ossification. (Web site)
  4. The center of ossification in the perichondrium is aligned with the center of ossification at the chondro-osseous junction of the growth plate.
  5. One is the endochondral ossification at the growth plate, and the other is the intramembranous bone formation at the perichondrium. (Web site)

Bone Growth

  1. The primary centre of ossification is the area where bone growth occurs between the periosteum and the bone. (Web site)
  2. At birth, long bones have more than one ossification center (regions from which bone growth starts).
  3. Intramembranous ossification The periosteum is formed and bone growth continues at the surface of trabeculae.
  4. Serving as a center of ossification or bone growth, hyaline cartilage is found lining the bones at joints and is also present inside bones. (Web site)
  5. The physis is the center of endochondral ossification, and its main purpose is rapid, integrated longitudinal bone growth.

Undergo

  1. Chondrocytes undergo terminal differentiation when they become hypertrophic during endochondral ossification. (Web site)
  2. A 'primary centre of ossification' develops within a template or precursor structure made of cartilage. (Web site)
  3. In old age the costal cartilages are prone to undergo superficial ossification. (Web site)

Formation

  1. Osteoblasts invade a membrane to form a center of ossification (formation of bone).
  2. As growth and ossification progress, the connective tissue of the fontanelles is invaded and replaced by bone.
  3. Many bones, including much of the lower part of the skull, are formed through endochondral ossification, which is the formation of bone from cartilage.
  4. The formation of bone during the fetal stage of development occurs by two processes: intramembranous and endochondral ossification. (Web site)
  5. Calcification of matrix: Chondrocytes in the primary center of ossification begin to grow (hypertrophy).

Embryo

  1. In the fetus, skull bones are formed by intramembranous ossification.
  2. Ossification continues from this center toward the ends of the bones.
  3. Intramembranous ossification Osteoblasts and osteoclasts on trabecula of lower jaw of calf embryo. (Web site)
  4. Mesenchymal stem cells, or MSCs, within the human embryo or the medullary cavity of a bone fracture, initiate the process of intramembranous ossification. (Web site)
  5. In the embryo, bone tissue arises through two processes, intramembranous ossification and endochondral ossification. (Web site)

Primary Ossification

  1. Bone feature Definition diaphysis The long, relatively straight main body of a long bone; region of primary ossification. (Web site)
  2. During the ninth week, numerous centers of endochondral ossification appear within the chondrocranium to form the bones that support the brain. (Web site)
  3. Constitutive upregulation of TGFB in endochondral ossification by EMF. Trans.
  4. Immuno-localization of proteoglycans expressed during endochondral ossification.
  5. Enhancement of bone maturation in experimental endochondral ossification by PEMF. Trans.

Centers

  1. At this time, the cartilaginous models of the proximal bones are undergoing ossification at ossification centers within the diaphysis of each model.
  2. In the thoracic regions, ossification in each dorsal-arch unit already extended ventrally to fuse with the ossification centers of the vertebral bodies (Fig.
  3. New ossification centers contributed to the fragmented radiographic appearance of the secondary center of ossification. (Web site)
  4. During ossification, blood vessels invade the cartilage and transport osteoprogenitor cells to a region called the center of ossification. (Web site)
  5. In at least 1 of the fetuses with trisomy 21, the ossification centers were notably asymmetrical. (Web site)

Fields

  1. Acceleration of experimental enchondral ossification by pulsed electromagnetic fields.
  2. Stimulation of chondrogenesis in experimental enchondral ossification by pulsing electromagnetic fields.
  3. Quantitative histomorphometric analysis of decalcified bone matrix-induced enchondral ossification.
  4. Sensitivity of developmental events in endochondral ossification to stimulation by ELF fields.

Begins

  1. Ossification begins when osteoblasts or bone forming cells, migrate to the region of the flat bones.
  2. The cancellous bone forms via two ossification centres, one medial and one lateral, which fuse later on.
  3. Ossification (bone growth) begins during fetal development.
  4. The palatine, vomer, and pterygoid lamina develop from dermal ossification around the maxillary process. (Web site)
  5. TD {font-size:10pt} Ossification - encyclopedia article about Ossification. (Web site)

Extends Toward

  1. Ossification begins in the center of the body, about the seventh week of fetal life, and gradually extends toward the extremities.
  2. Ossification begins in the body about the eighth week of fetal life, and extends toward the extremities.
  3. Ossification of the vertebral column and ribs begins in the eighth week, continues throughout childhood, and becomes complete in young adulthood. (Web site)

Ossified

  1. Between the eighteenth and twenty-fifth years this becomes ossified, ossification commencing above and extending downward. (Web site)
  2. Ossification The tibia is ossified from three centers : one for the body and one for either extremity. (Web site)
  3. Ossification The lacrimal is ossified from a single center, which appears about the twelfth week in the membrane covering the cartilaginous nasal capsule. (Web site)
  4. Ossification The ethmoid is ossified in the cartilage of the nasal capsule by three centers: one for the perpendicular plate, and one for each labyrinth. (Web site)
  5. The process of ossification progresses outward from this center, until the bone is completely ossified. (Web site)

Develops

  1. As remodeling progresses in long bones, a new center of ossification develops, this one at the swollen ends of the bone, called the epiphysis. (Web site)
  2. Membranous bone develops through intramembranous ossification.

Secondary Centers

  1. These areas of cartilage are known as secondary centers of ossification.
  2. Beyond these, secondary centres of ossification develop and a similar process happens. (Web site)

Spongy Bone

  1. Behind the advancing front of ossification, osteoclasts are absorbing the spongy bone and enlarging the primary marrow cavity. (Web site)
  2. As the ossification center grown toward the ends of the bone, osteoclasts break down some of the newly formed spongy bone trabeculae. (Web site)
  3. In addition to the usual centers of ossification of the cranium, others may occur, giving rise to irregular isolated bones termed sutural or Wormian bones. (Web site)
  4. Long, short, and irregular bones develop by endochondral ossification, where cartilage is replaced by bone. (Web site)
  5. After birth, secondary ossification centers form in epiphyses – ossification is similar, except spongy bone is not broken down.

Types

  1. Bone throughout the body is formed by one of two types of ossification processes: endochondral ossification, and intramembranous ossification.
  2. This process is called ossification of which there are two types, intramembranous and intracartilaginous ossification.
  3. In both types of ossification, spongy bone is laid down first.

Physis

  1. The physis is the center of endochondral ossification, and its main purpose is rapid, integrated longitudinal bone growth.
  2. Upon ossification of the physis, it'll become radiopaque instead of radiolucent.

Adolescents

  1. However this is not the case in children and adolescents, where the hyoid bone is still flexible as ossification is yet to be completed. (Web site)
  2. Osgood-Schlatter's disease Traction epiphysitis of the tibial tubercle, occurring before the secondary ossification centre has closed, in adolescents. (Web site)

Six Weeks

  1. By six weeks, new accessory centers of ossification with restored endochondral ossification were observed in the peripheral epiphyseal cartilage.

Figure

  1. Figure 7. Proliferation during ossification of the skull. (Web site)
  2. Figure 4: Ossification of the sternum.
  3. As the tadpoles continued to develop from stages 59 to 61, ossification of the frontoparietal bone proceeded medially (Figure 2). (Web site)

Puberty

  1. This temporary cartilage is gradually replaced by bone (Endochondral ossification), a process that ends at puberty. (Web site)

Replacement

  1. The two types of ossification, intramembranous and endochondral, involve the replacement of a preexisting connective tissue with bone.

Elbow

  1. May 1997. The surgical treatment of heterotopic ossification at the elbow following long-term coma.

Complete

  1. In some individuals, complete ossification does not occur; the secondary center remains separate from the rest of the bone, forming an accessory ossicle. (Web site)
  2. Complete ossification of the fontanels normally occurs by twenty to twenty-four months of age. (Web site)
  3. Their development entails ossification of the membranous fontanelles that becomes complete when the child is approximately 2 years old. (Web site)

Age

  1. Ossification is completed about the age of puberty. (Web site)
  2. The age at which ossification centers are first seen varies considerably; maturation usually proceeds earlier in girls than in boys.
  3. However, it is the last of the long bones to finish ossification, at about 21 years of age. (Web site)

Childhood

  1. Though ossification is thicker and more extensive in cases of meningogenic meningitis during childhood(11).
  2. Endochondral ossification occurs during the childhood, replacing the hyaline cartilage with bone.
  3. Heterotopic ossification in fibrodysplasia ossificans progressiva begins in childhood and can be induced by intramuscular injections. (Web site)

Plan

  1. Figure 4: Plan of ossification of the tibia.
  2. Figure 2: Plan of ossification of the fibula.
  3. Figure 4: Plan of ossification of the humerus.

Vertebrae

  1. Gabapentin has been shown to be fetotoxic in rodents, causing delayed ossification of several bones in the skull, vertebrae, forelimbs, and hindlimbs. (Web site)
  2. Ossification of the vertebrae began a stage later (stage 54–56), advancing from anterior to posterior (Figure 1, F–K). (Web site)

Spine

  1. Other bones, such as the metacarpals, metatarsals, phalanges, and spine, grow by a combination of both appositional and endochondral ossification.
  2. Sites of ossification include the neck, spine and shoulder girdle.
  3. The most common sites of early heterotopic ossification were the neck, spine, and shoulder girdle. (Web site)

Limb

  1. Between the two centers of ossification is the metaphyseal growth plate, and this is what enables the limb to lengthen after birth as the foal grows.

Membranous Ossification

  1. Development The larger part of the scapula undergoes membranous ossification. (Web site)
  2. This region then gives rise to a fibrocartilagenous zone with layers of fibrocartilage, hyaline cartilage and bone formed by membranous ossification.
  3. Long bones contain a collar of cortical bone, which is formed from perichondrium by membranous ossification. (Web site)

Membranous

  1. Ossification starts as membranous ossification before birth[1][2].
  2. The mesenchyme encompassing Meckel cartilage undergoes membranous ossification to form the body of the mandible. (Web site)
  3. The larger part of the scapula undergoes membranous ossification.[1].

Differentiation

  1. Effect of weight loading on growth plate proliferation, differentiation, and ossification. (Web site)

Collagen

  1. Heterotopic ossification derived cells were shown to produce osteocalcin, Type 1 collagen, and alkaline phosphatase activity.

Bone Forming Cells

  1. Ossification begins when osteoblasts or bone forming cells, migrate to the region of the flat bones.

Spicules

  1. Bony spicules are seen throughout the centers of ossification, making areas of spongy bone with red marrow between the spicules.

Auricle

  1. Ann Otol. 1932; 41:867–85. Knapp H. Ossification of the auricle in consequence of perichondritis seropurulenta.
  2. True ossification of the auricle with cartilage replacement by bone, is a very rare clinical entity and can result in an entirely rigid auricle. (Web site)

Adulthood

  1. Primary and secondary ossification centres do not merge before adulthood.

Postnatally

  1. Ossification occurred prematurely in both greater horns of the hyoid bone, whereas it normally occurs only postnatally (Fig.
  2. Ossification continues postnatally, through puberty until mid 20s. (Web site)
  3. Secondary centers of ossification: These appear in the chondroepiphysis and mostly appear postnatally.

Categories

  1. Medicine > Anatomy > Tissues > Cartilage
  2. Bones
  3. Encyclopedia of Keywords > Nature > Systems > Process
  4. Encyclopedia of Keywords > Society > Humans > Skull
  5. Glossaries > Glossary of Skeletal System /

Related Keywords

    * Birth * Body * Bone * Bones * Bone Formation * Bone Matrix * Calcification * Cancellous Bone * Cartilages * Cartilage Cells * Center * Centre * Centres * Cervical Spine * Chondrocytes * Chondrogenesis * Clavicle * Connective * Craniosynostosis * Development * Diaphysis * Eighth Week * End * Endochondral Bone Formation * Ends * Epiphyseal Plate * Epiphyses * Epiphysis * Femur * Fetal Development * Fetal Life * Fetus * Fibrocartilage * Fibrous * Fibrous Membrane * Fig * Figs * Growth * Growth Plates * Hyaline Cartilage * Joints * Lateral Epicondyle * Limbs * Long Bone * Mandible * Medial Epicondyle * Membrane * Membranes * Mesenchymal Cells * Mesenchyme * Metaphysis * Ossification Centers * Ossification Centres * Ossification Process * Osteoblasts * Osteoclasts * Osteogenesis * Patella * Pectoral Girdle * Perichondrium * Periosteum * Posterior Longitudinal Ligament * Primary Center * Primary Centers * Primary Centre * Process * Radius * Scapula * Secondary * Secondary Ossification Centers * Shaft * Skeleton * Skull * Sternum * Sutures * Tibia * Trabeculae * Weeks
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  Originally created: April 02, 2008.
  Links checked: March 22, 2013.
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