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13 Cards in this Set
- Front
- Back
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What muscles does the axillary nerve innervate?
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Deltoid and Teres minor (external rotation) and long head of Triceps (extension
(middle trunk, posterior division, posterior cord) |
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What nerve innervates the Rhomboids and Levator Scapulae?
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Dorsal Scapular Nerve
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What muscles does the Suprascapular nerve innervate?
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Supraspinatus and infraspinatus muscles
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What is the difference between Duchenne dystrophy and Becker's?
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Becker's is less severe, starts later and has a longer life-span.
Both deal with x-linked frame-shift dystrophin gene mutations. Weakness starting in the pelvic girdle (gower's maneuver) Pseudohypertrophy of calves due to fibrofatty replacement of muscle. Cardiomyopathy |
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What is the hallmark microscopic feature of rickets?
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Extensive osteoid matrix
Defective MINERALIZATION (vs. osteoporosis which is normal) Increased Osteoblasts |
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Elevated Anti-citrullinated protein antibody
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Rheumatoid Arthritis - best test
Joint stiffness > 1 hr in the morning Pannus over joints, Baker's cyst, HLA-DR4 involvement (like diabetes), No DIP involvement Type III hypersensitivity Rheumatoid nodules lined by palisading Histiocytes |
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Dislocation of the lunar bone in the wrist may cause what kind of neurological problems?
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Muscle wasting of the thenar eminence and wrist drop due to lesion of the median nerve
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What muscle and nerve allow extension of the 4th and 5th digits of the hand?
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Lumbricals (ulnar nerve) - extension
Dorsal interosseus muscle - ABduction (DAB) Palmar interosseus muscles - ADduction (PAD) |
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What is the major difference between a lesion of the distal median nerve (carpal tunnel, lunate dislocation) and a proximal lesion (supracondylar fx)?
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Proximal lesion has loss of opposition of thumb and Ape hand (with ulnar deviation upon flexion)
Distal lesion has only ulnar deviation |
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Homogentisic Acid Oxidase
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The enzyme that is deficient in Alkaptonuria
- Autosomal Recessive, enzyme in the tyrosine pathway - Black urine, Osteoarthritis, Pigmented sclera, |
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What part of the bone causes it to re-unite after a fracture?
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Periosteum - has the most osteoblasts, no other parts contribute to the formation of new bone after a fracture
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What are the proteins that are found in high amounts in Osteogenesis Imperfecta?
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Glycine and Proline highly enrich the type I collagen in OI.
AD, Hearing loss, Lack of Dentin in teeth Blue sclera, mishap pen bones, fractures |
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Wiskott-Aldrich syndrome
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Thrombocytopenia (purpura)
Decreased IgM (infections) Increased IgE and IgA (eczema, rash) X-linked recessive |
