When an antigen gains entry to the body, it stimulates all of the B cells to produce antibodies specific against it
Indicate whether the statement is true or false
F
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The heart valves
A. stabilize and hold the arteries leaving the heart. B. permit the passage of blood in one direction. C. are only used in the fetal heart. D. direct the conduction impulse through the heart muscle. E. separate the right and left sides of the heart.
Physiological responses to stress would NOT include ________.
A. increased secretion of epinephrine and norepinephrine B. increased secretion of glucocorticoids C. increased immune response D. increased secretion of ACTH
A nerve signal would proceed most commonly in which order?
A) soma > dendrite > axon > synapse B) dendrite > soma > axon > synapse C) dendrite > synapse > soma > axon D) dendrite > soma > synapse > axon
Most solute and water reabsorption in the nephron happens at the
A) Bowman's capsule. B) Proximal tubule. C) Loop of Henle. D) Distal tubule.