Pathologic Ossification

Ossification is the natural process of bone formation.
Pathologic ossification is the formation of bone in nonosseous tissue.

Occurrence
      Tendons of turkey,
      lateral cartilages of horse’s foot,
      tracheal and laryngeal cartilages,
      interalveolar septa of lung,
      chronically injured muscle,
      renal pelvis etc.

Causes
1.      Prolonged irritation,
2.      Hereditary tendency,
3.      Dystrophic and metastatic calcification.

Microscopic appearance
1.      Presence of osteocytes and lacunae.
2.      Functioning marrow may also be found.

 pathology photos এর চিত্র ফলাফল

Significance
1.      Pathologic ossification mechanically interferes with the movement of tissue such as muscle.
2.      It interferes with the gaseous exchange of oxygen in the lungs.

Related Posts:

  • Diagnosis & Treatment of Bovine Ostertagiasis Diagnosis: ·         Clinical history: o   Grazing history o   Seasons April … Read More
  • Mechanism of defence Mechanism of defence: Inflammatory response is a collective term representing the complex sequence of events during inflammation. It initiates when injured tissue cells release inflammatory mediators(chemicals). Among the … Read More
  • The Complement System The Complement System: The serum of the blood contains a large number (over 30) of serum proteins that circulate in an inactive state and following their initial activation by specific (adaptive) and nonspecific (innate) i… Read More
  • Nutritional Deficiency Diseases in Human : The important deficiency disorders include protein energy malnutrition (PEM) and disorders due to deficiencies of Vitamin A, iron and iodine. Defi­ciency of protein and energy or both, called PEM, has been identified as … Read More
  • Mechanism of Phagocytosis Phagocytosis: Phagocytosis (Gk. Phagein = to eat; cyte = cell; and osis = a process) is a process during which large particles and microbial cells are enclosed in a phagocytic vacuole or phagosome and ingulfed. It acts a h… Read More

0 Comments:

Powered by Blogger.

Visitors

216217
Print Friendly Version of this pagePrint Get a PDF version of this webpagePDF


 download University Notes apps for android

Popular Posts

Flag Counter