The target of many local anesthetics is to block the action potential for which of the following receptors?
A) Muscle spindles
B) Free nerve endings
C) Bulbous corpuscles
D) Lamellated corpuscles
Answer: B
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What is the function of a catalyst in a chemical reaction?
A. It ensures that the reaction can proceed only in one direction, from reactants to products. B. It lowers the activation energy of the reaction. C. It is split into individual molecules that are products of the reaction. D. It generates heat that makes the reaction proceed. E. It changes the energy content of the reactants.
The chief mechanism for maintaining fluid balance is to:
a. adjust fluid intake so it equals fluid output b. adjust fluid intake so it is slightly above fluid output c. adjust fluid output so it equals fluid input d. none of the above
Spina bifida can be prevented by adequate ascorbic acid ingestion during pregnancy.
Answer the following statement true (T) or false (F)
The first section of the nephron loop that glomerular filtrate encounters is the ________.
A. ascending loop B. distal tubule C. descending loop D. proximal tubule