How are osteons in compact bone tissue aligned?
a) horizontal to the metaphysis.
b) parallel to the epiphysis.
c) parallel to the length of the diaphysis.
d) randomly between the epiphyseal plates.
e) parallel to the perforating canals.
c
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Which disorder affects the peripheral nervous system usually with ascending paralysis starting in the feet?
A) Myasthenia gravis B) Tetanus C) Guillain-Barré syndrome D) Muscular dystrophy
The lacunae of osseous tissue contain
A) blood cells. B) osteocytes. C) chondroblasts. D) bone marrow. E) capillaries.
The white matter of the spinal cord is surrounded by its grey matter
Indicate whether this statement is true or false.
Vigorous physical activity causes total metabolic rate to
A. decrease during the exercise and for hours afterwards. B. increase during the exercise and for hours afterwards. C. increase for the duration of the exercise. D. remain constant. E. decrease to conserve energy during the exercise but increase to repay oxygen debt.