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25 Cards in this Set
- Front
- Back
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The extracellular organic matrix of bones is called: [1] |
B. Osteoid
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The central ("midshaft") portion of long bones is called: [2]
A. Epiphysis B. Metaphysis C. Diaphysis D. Physis E. Osteoid |
B. Metaphysis
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Which vitamin is essential for the formation of bones? [3]
A. Vitamin A B. Vitamin B1 C. Vitamin B12 D. Vitamin D E. Vitamin E |
D. Vitamin D
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Softening of bones as a result of excessive resorption of calcium salts from the extracellular bone matrix is called: [4]
A. Osteoporosis B. Osteomalacia C. Osteopetrosis D. Osteitis deformans E. Pellagra |
B. Osteomalacia
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Rheumatoid arthritis is best classified as: [5]
A. Infectious disease B. Degenerative disease C. Inborn error of metabolism D. Autoimmune disease E. Neoplastic disease |
D. Autoimmune disease
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Which of the following diseases is an autosomal dominant cause of dwarfism? [6]
A. Achondroplasia B. Osteopetrosis C. Osteogenesis imperfecta D. Rickets E. Osteomalacia |
A. Achondroplasia
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Osteogenesis imperfecta is an inborn error in the synÂthesis of: [7]
A. Collagen type I B. Collagen type II C. Collagen type III D. Phosphate crystals E. Basement membranes |
A. Collagen type I
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Osteomyelitis of long bones is most often caused by: [8]
A. Viruses B. Pyogenic bacteria C. Mycobacterium tuberculosis D. Fungi E. Parasites |
B. Pyogenic bacteria
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Aseptic necrosis of bones may be caused by all the following except: [9]
A. Sickle cell anemia B. Thrombotic occlusion of a nutrient artery C. Trauma D. Bacteria E. Drugs |
D. Bacteria
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Which of the following diseases has the highest inciÂdence among postmenopausal women? [10]
A. Osteoporosis B. Osteopetrosis C. Osteomalacia D. Achondroplasia E. Osteomyelitis |
A. Osteoporosis
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The excess of which hormone causes osteoporosis? [11]
A. Androgens B. Estrogens C. Corticosteroids D. Prolactin E. Glucagon |
C. Corticosteroids
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Osteoporosis is usually diagnosed by means of: [12]
A. Bone biopsy B. Electron microscopy C. X-ray examination D. Analysis of blood E. Analysis of joint fluid |
C. X-ray examination
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Bowlegs, craniotabes, and rachitic rosary in a growing child are signs of: [13]
A. Osteoporosis B. Osteopetrosis C. Vitamin B1 deficiency D. Vitamin D deficiency E. Vitamin A deficiency |
D. Vitamin D deficiency
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The bone lesions in renal osteodystrophy are caused by an excess of: [14]
A. ACTH B. Thyroglobulin C. Parathyroid hormone D. Aldosterone E. Androgens |
C. Parathyroid hormone
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If a long bone fracture has numerous lines and fragments, it is called: [15]
A. Simple B. Greenstick C. Comminuted D. Complete E. Incomplete |
C. Comminuted
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Benign bone tumor composed of cartilage cells is called: [16]
A. Osteoma B. Chondroma C. Fibroma D. Paget's disease E. Ewing's disease |
B. Chondroma
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The most common primary malignant tumor of bones is called: [17]
A. Osteosarcoma B. Chondrosarcoma C. Paget's disease D. Ewing's disease E. Giant cell tumor of bone |
A. Osteosarcoma
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Osteosarcomas most often arise in the bones of the: [18]
A. Skull B. Vertebrae C. Fingers D. Toes E. Knee |
E. Knee
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A tumor in a 15-year-old boy was diagnosed in the diaphysis of the tibia. On x-ray examination, it had a sunburst appearance and histologically it was composed of a uniform population of small blue cells. This tumor is a(n): [19]
A. Osteosarcoma B. Chondrosarcoma C. Giant cell tumor D. Ewing's sarcoma E. Metastasis from a lung cancer |
D. Ewing's sarcoma
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Which joint disease is characterized by destruction and loss of cartilage, sclerosis of subchondral bone, cyst formation, and osteophytes? [20]
A. Osteoarthritis B. Osteomalacia C. Rheumatoid arthritis D. Gout E. Infectious arthritis |
A. Osteoarthritis
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The most common symptom of degenerative joint disease is: [21]
A. Fever B. Swelling C. Pain D. Ankylosis E. Crepitation |
C. Pain
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In rheumatoid arthritis the synovium of joints is infiltrated with: [22]
A. Neutrophils B. Eosinophils C. Mast cells D. Basophils E. Plasma cells |
E. Plasma cells
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Patients with so-called seropositive rheumatoid arthritis have in their blood antibodies to: [23]
A. Viruses B. Their own immunoglobulins C. Smooth muscle cells D. Cartilage E. Synovial membrane |
B. Their own immunoglobulins
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Subcutaneous nodules composed of a central area of fibrinoid necrosis surrounded by macrophages and lymphocytes are typical of: [24]
A. Infectious arthritis B. Rheumatoid arthritis C. Osteoarthritis D. Gout E. Rickets |
B. Rheumatoid arthritis
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Migratory arthritis caused by Borrelia burgdorferi is typical of: [25]
A. Rocky Mountain spotted fever B. Trench foot C. Lyme disease D. Legionnaire's disease E. Osteoarthritis |
C. Lyme disease
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