John is a sprinter who specializes in quick and powerful bursts of speed followed by periods of rest. Jim is a marathon runner who specializes in long, steady runs. Compared to Jim, John is likely to have:
A. legs with a larger diameter.
B. legs with a smaller diameter.
C. hypertrophy of type I muscle fibers.
D. a higher density of capillaries in his legs.
E. lower concentrations of glycolytic enzymes in his leg muscles.
A
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Which cell type, found in connective tissue proper, is formed from monocytes and serves to phagocytize damaged cells or pathogens?
A. Mast cell B. Adipocytes C. Mesenchymal cell D. Plasma cell E. Free macrophage
________ are large phagocytic white cells that spend most of their time outside the blood as fixed and free phagocytic cells
A) Neutrophils B) Eosinophils C) Basophils D) Lymphocytes E) Monocytes
The ectoderm forms which of the following?
A) muscle B) all lymphatic structures C) the cardiovascular system D) the thymus, thyroid gland, and pancreas E) all neural tissues
The inspiratory muscles include the
a. diaphragm and internal intercostal muscles. b. diaphragm and external intercostal muscles. c. diaphragm and abdominal muscles. d. internal and external intercostal muscles. e. none of these answers.