Lifting weights will cause muscles to enlarge. This is primarily due to
A. an increase in the number of muscle cells.
B. an increase in the size of muscle cells.
Answer: B
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Which of the following statements is true regarding fluid shifts?
A) There are always more positive electrolytes than negative in a solution; it is therefore impossible to follow fluid shifts. B) Nonelectrolytes are the controlling factor in directing fluid shifts. C) Electrolytes are not as important as proteins in regulating fluid shifts in the body. D) Electrolytes have greater osmotic power than nonelectrolytes and therefore have the greatest ability to cause fluid shifts.
The organ that monitors and adjusts the composition of tubular fluid, recycles damaged spermatozoa, and is the site of sperm maturation is the
A) ductus deferens. B) rete testis. C) seminal gland. D) epididymis. E) prostate gland.
Because of the active transport of Na+ and K+, the intracellular concentration of Na+ is lower than the extracellular concentration, whereas the reverse is true for K+
Indicate whether the statement is true or false.
What can the results of a white blood cell differential test indicate?
A. The presences of abnormal cells in bone marrow B. Abnormal percentage of basophils C. Abnormal white blood cells in the cerebral spinal fluid D. The presence of abnormal cells in the lymph nodes