The conductive segment of a neuron is its ________, a region that contains many ________ gated channels.
A. dendrite, chemically
B. axon, voltage-
C. axon, chemically
D. dendrite, voltage-
Answer: B
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The first branch off the arch of the aorta is the
A. right subclavian artery. B. brachiocephalic artery. C. right common carotid artery. D. left common carotid artery. E. left subclavian artery.
Going from superior to inferior, the regions of the spine would be in which order?
a. cervical, thoracic, sacrum, coccyx, lumbar b. cervical, thoracic, lumbar, sacrum, coccyx c. cervical, lumbar, thoracic, coccyx, sacrum d. cervical, thoracic, lumbar, coccyx, sacrum
Fertilization, the union of male and female gametes, normally occurs in the ampulla, the upper third of the oviduct
a. True b. False Indicate whether the statement is true or false
Kartagener's syndrome, characterized by frequent respiratory infections, arises from a defect in which respiratory structure?
a. Cartilage in bronchi b. Cilia in respiratory epithelia c. Goblet cells in bronchioles d. Pulmonary alveolar capillaries e. Surfactant in alveolar cells