Defective bone formation is called osteodystrophy. It is caused in most cases by deficiencies or imbalances of calcium, phosphorus, and vitamin D, and the hormone that regulates them (parathyroid hormone), all of which are important in creating and maintaining strong, healthy bones.
The primary source of calcium and phosphorus is the diet, but a number of factors affect how the body absorbs these minerals. These include the type of food, pH withi
Animals that contract viral infections in the womb may be born with diseased or deformed musculoskeletal systems. Abnormalities may also be congenital (present at birth) if a mother is exposed to certain toxins at certain stages of the pregnancy. Some inherited (genetic) conditions affecting the musculoskeletal system may be neurologic in origin.
Dystrophy-like Myopathies
Numerous examples of progressive
Lameness is not a disease, but it may indicate a disorder in the musculoskeletal system. Signs of musculoskeletal disorders include weakness, lameness, limb swelling, and joint dysfunction. Nerve reaction and muscle function may be impaired as a result of changes to neuromuscular tissues. Problems with the muscles and skeleton may also affect other organ systems, including the urinary, digestive, and circulatory systems.
To diagnose the problem, a veterinaria
Many systems in the body rely on the muscles. A cat’s ability to see, breathe, urinate, breed, and even chew and swallow may be affected by a muscular condition. Many disorders can show themselves in the muscles but be traced back to the nervous system. Disorders that primarily affect the muscle membrane or muscle fibers are called myopathies. Muscle membrane disorders may be hereditary or acquired. Diagnosing a myopathy usually requires laborator
Bones provide rigid structure to the body and shield internal organs from damage. They also house bone marrow, where blood cells are formed, and they maintain the body’s reservoir of calcium. Old bone tissue is continuously replaced with new bone tissue in a process called remodeling. This helps keep the bones healthy.
Bones come together to form joints. The type of joint formed determines the degree and di
The musculoskeletal system includes the bones, cartilage, muscles, ligaments, joints, tendons, and other connective tissue. It supports the body, permits movement, and protects the vital organs. Because many other body systems (including the nervous system, blood vessels, and skin) are interrelated, disorders of one of these systems may also affect the musculoskeletal system.
Diseases of the musculoskeletal system most often affect the body’s ability to move.
Erythrocytosis (often referred to as polycythemia) is an increase in the number of red blood cells in the bloodstream. (Polycythemia varies from erythrocytosis in that polycythemia may also refer to an increase in white blood cells or platelets.) Primary erythrocytosis (polycythemia vera) is a disease in which the blood-producing cells in the bone marrow develop and reprodu
Leukocytes, or white blood cells, in the blood of mammals include neutrophils, lymphocytes, monocytes, eosinophils, and basophils. These cells vary with regard to where they are produced, how long they circulate in the bloodstream, and the factors that stimulate them into going in or out of the intricate network of tiny blood vessels that branch out through the tissues
When bleeding occurs in an organ or body part, a process is set in motion to stop the bleeding. This is called hemostasis. To work, hemostasis requires an adequate number of platelets, the right amount of blood clotting proteins (often referred to as factors), and blood vessels that constrict properly. When an injury occurs, the wall of the blood vessel breaks. A norma
Blood parasites are organisms that live in the blood of their animal hosts. These parasites can range from single-celled protozoa to more complex bacteria and rickettsiae. The method of transmission varies depending on the parasite, but often they are transmitted through the bites of ticks or flies.