The mononuclear phagocytic system includes
A. mast cells and megakaryocytes.
B. monocytes, macrophages, and neutrophils.
C. basophils, neutrophils, and eosinophils.
D. T lymphocytes and B lymphocytes.
Answer: B
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Superficial pain is highly localized, but visceral pain is diffuse because
A. the viscera has fewer mechanoreceptors which give location information. B. visceral pain has less emotional involvement. C. the viscera has fewer pain receptors. D. the skin has more sensitive pain receptors.
When is ossification of the appendicular skeleton complete?
A. Before birth B. By about age 6 C. By the time one is a teenager D. When a person is in his or her 20s E. The timing of ossification varies widely from person to person.
In ________, antibody-mediated mechanisms not only destroy pathogens specifically, but they also further stimulate both the adaptive and innate immune responses.
A. humoral immunity B. secondary response C. cell-mediated immunity D. regulatory T cell function
Parathyroid hormone increases the activity of ________ in bone and increases the rate of Ca2+ ________ in the kidney tubules.
A. osteocyte; reabsorption B. osteoblast; secretion C. osteoclast; reabsorption D. osteoblast; reabsorption E. osteocyte; secretion