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Histology Exam 3
Diseases
17
Biology
Undergraduate 3
04/17/2011

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Term
Osteomalacia
Definition
bones are inadequately mineralized causing softened weakened bones (Calcium or Vitamin D deficiency) in adults
Term
Rickets
Definition
bones are inadequately mineralized causing softened weakened bones (Calcium or Vitamin D deficiency) in children
Term
osteoporosis
Definition
Group of diseases in which bone re-absorption outpaces bone deposit. Usually due to poor diet and exercise habits
Term
Paget's Disease
Definition
excessive bone formation in one area, and breakdown in another. Usually found in the spine, pelvis, femur and skull.
Term
osteoarthritis
Definition
wear and tear. Heberden's nodes distal. Bouchard's nodes proximal.
Term
rheumatoid arthritis
Definition
autoimmune disease. antibodies attack joints
Term
gouty arthritis
Definition
occurs when uric acid crystals deposit in extremity joints (where it is colder) and ears (tophi) (also colder). Can be caused by high concentration or uric acid followed by dehydration, which increases concentration and leads to precipitation.
Term
tetracycline
Definition
stain teeth yellow or grey in the fetus
Term
osteopetrosis
Definition
extremely rare condition where bones harden, becoming overly dense. Caused by dysfunctional osteoclasts
Term
acromegaly
Definition
pituitary gland produces excess growth hormone (hGH) after epiphyseal plate closure
Term
gigantism
Definition
caused by excessive production of growth hormone prior to puberty
Term
multiple sclerosis
Definition
antibodies attack myelin sheaths. (cause amyloid deposits)
Term
hypertrophy
Definition
Increase in cell volume, myofibrils and muscle size induced by exercise.
Term
hyperplasia
Definition
increase in muscle cells(fibers) through the process of mitosis. Takes place mainly in smooth muscle.
Term
myasthenia gravis
Definition
antibodies attack acetylcholine receptors inhibiting signals. muscle weakness results
Term
neuroma
Definition
tumor of nerve tissue
Term
hydrocephalus
Definition
Due to blockage of drainage of CSF usually a result of a brain tumor or severe head trauma
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