The periosteum is anchored to the bone by collagen fibers called ________ fibers.
A. transverse
B. cementing
C. connecting
D. penetrating
E. perforating
Answer: E
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Measurements in a nephron reveal a glomerular hydraulic pressure of 69 mm Hg, and a fluid pressure in the Bowman's capsule of 15 mm Hg. Assuming that the plasma osmotic pressure is 30 mm Hg, and that essentially no plasma proteins are filtered by the glomerulus, what is the net glomerular filtration pressure in this case?
A) 24 mm Hg B) -6 mm Hg C) 114 mm Hg D) 54 mm Hg E) 84 mm Hg
When smooth muscles in the walls of the arteries are stimulated to contract,
A) viscosity increases. B) peripheral resistance decreases. C) blood pressure decreases. D) blood pressure increases.
Growth hormone hypersecretion after adolescence produces what condition?
a. mental retardation b. dwarfism c. acromegaly d. gigantism e. hyperthyroidism
Antigens:
a. are produced by T lymphocytes b. are produced by B lymphocytes c. cause the formation of antibodies d. both B and C above