Keeping the membrane potential at 0 mV will...
What will be an ideal response?
allow current to flow. open voltage-gated sodium channels. open voltage-gated potassium channels
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Airway resistance
a. is normally the primary factor determining the amount of flow into/out of the lungs. b. is increased when the diameter of the airways becomes reduced. c. when elevated requires an increased pressure gradient between the lungs and atmosphere through vigorous respiratory efforts to move even normal volumes of air into and out of the lungs. d. both (b) and (c) above. e. all of these answers.
The gray horns of the spinal cord contain mainly
A) nerve tracts. B) columns. C) meninges. D) neuron cell bodies. E) cerebrospinal fluid.
Motile cilia cover the free surface of
A) the gastrointestinal tract. B) the urinary tract. C) the respiratory tract. D) the cardiovascular system. E) all hollow organs.
The sciatic nerve is composed of the
A. femoral nerve and the tibial nerve. B. tibial nerve and the common fibular nerve. C. femoral nerve and the obturator nerve. D. common fibular nerve and the pudendal nerve. E. superior gluteal and inferior gluteal.