An IPSP is
a. produced by increased permeability to Na+ and K+
b. produced by increased permeability to K+ or Cl-
c. a hyperpolarization of the presynaptic cell
d. a decrease in the postsynaptic membrane potential
e. an decrease in the presynaptic membrane potential
B
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Which of the following glands have a compound rather than a simple structure?
A) salivary glands B) sebaceous glands C) mucous glands D) sweat glands E) gastric glands
The areas near the Z lines that contain only thin filaments are ________
A) None of the listed responses is correct. B) A bands C) zones of overlap D) I bands
Blood flow through capillaries is regulated by
A. one-way valves in the veins. B. precapillary sphincters. C. skeletal muscle contraction. D. elastic valves. E. the tunica intima.
The serous membrane covering the surface of the lungs is called the ________
A) mediastinum B) visceral pleura C) parietal pleura D) main (primary) bronchi E) pleurisy