Somatosensory functions are carried out in this part of the spinal cord
A) ventral fiber tracts and ventral horns B) dorsal white columns and dorsal horns
C) lateral and ventral fiber tracts and ventral horns D) lateral fiber tracts and lateral horns
Answer: B
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A hormone that can lower blood levels of calcium ion is
A) parathyroid hormone. B) thyroxine. C) calcitonin. D) glucagon. E) oxytocin.
The environment outside the plasma membrane is most appropriately referred to as
A. intracellular. B. extracellular. C. multicellular. D. centrocellular. E. None of these choices are correct.
The function of the bronchial tree through the terminal bronchiole is ________; the function of the respiratory bronchiole and alveoli is ________
A) to move air, gas exchange B) to filter air, to move carbon dioxide across the respiratory membrane C) gas exchange, gas exchange D) to warm and moisten air, to move air to the respiratory membrane
Which of the following statements best distinguishes between tetanus and treppe?
A. Tetanus only occurs in laboratory settings, but treppe occurs all the time in normal muscle activity. B. Tetanus involves increasing the number of motor units stimulated simultaneously; whereas, treppe involves the repeated stimulation of a single muscle fiber. C. Tetanus is due to repeated stimulation of the muscle; treppe is the result of a single long stimulation of the muscle. D. Tetanus occurs when stimulation of muscle occurs frequently with little to no relaxation between stimuli; treppe occurs when stimulation of muscle occurs frequently, but complete relaxation occurs between stimuli.