Which of the following drugs would be the best choice to use in chronic asthma to dilate the bronchioles?
A. Ganglionic blocking agents
B. Alpha-adrenergic blocking agents
C. A nicotinic agent
D. A muscarinic agent
E. Beta-adrenergic stimulating agents
Answer: E
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An isotonic solution
A) has more water entering than leaving a cell. B) has a greater concentration of solute particles than a cell. C) has the same osmotic pressure as the cells in the solution. D) causes a cell to shrink.
Chromatin and chromosomes are both composed of DNA
Indicate whether the statement is true or false
Unusually high incidences of pars interarticularis fractures have been documented in which of the following groups of athletes?
A. female gymnasts B. interior football linemen C. weight lifters D. all of the above
Which of the following is not true of the structure of a lymph node?
A. A lymph node typically has one afferent lymphatic vessel and several efferent lymphatic vessels. B. Trabeculae are inward extensions of the capsule, that provide physical support. C. Lymphatic nodules are all located in the cortex of the node. D. The hilum is the entry/exit point for blood vessels and (a) certain lymphatic vessel(s). E. All of these are true of the structure of a lymph node.