The type of voltage-gated channel that possesses an inactivation gate that temporarily closes after the channel is active is the
A. voltage-gated potassium channel.
B. voltage-gated sodium channel.
C. voltage-gated calcium channel.
D. voltage-gated chloride channel.
B
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Air entering the potential space of the pleural cavity is called
A. pneumothorax. B. pneumonia. C. internal respiration. D. pulmonary ventilation.
The dorsal/posterior nuclei of the thalamus includes the
A) basal nuclei. B) lateral and medial geniculate nuclei. C) mammillary body. D) interthalamic adhesion. E) red nucleus.
During the gastric phase of gastric secretion, which of the following stimulates stomach contractions?
A) secretin B) HCl C) pepsinogen D) gastrin E) trypsin
The point of contact between the nerve and the muscle fibers it stimulates is called a:
a. motor unit b. neuromuscular junction c. motor neuron d. neurotransmitter