A posterior root contains
A. sensory axons only.
B. motor axons only.
C. autonomic nervous system axons.
D. a mix of sensory and motor axons.
Answer: A
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Equal amounts of two solutes, A and B, are placed into the same beaker of water at the same time. Solute A reaches diffusion equilibrium faster than solute B. What is the most likely explanation for this observation?
A. The concentration gradient for A was greater than B. B. Solute B is more soluble in water than solute A. C. Solute A traveled a shorter distance than solute B. D. The temperature was greater for solute A than solute B. E. Solute A is smaller than solute B.
Distinguish between intrapulmonary and intrapleural pressure.
What will be an ideal response?
If a second stimulus arrives before the relaxation phase has ended, a second, more powerful contraction occurs. This is called
A) Incomplete tetanus. B) Complete tetanus. C) Treppe. D) Wave summation. E) Recruitment.
You are caring for a man with a chemical burn to both eyes. The patient, who has contact lenses in place, is in severe pain and tells you that he can't see. Proper care for this patient includes:
A) carefully removing his contact lenses, flushing both eyes for at least 20 minutes, and transporting with continuous eye irrigation. B) leaving his contact lenses in place to avoid further injury and transporting at once with irrigation of both eyes performed en route. C) removing his contact lenses, covering both eyes with moist, sterile dressings, administering a narcotic analgesic, and transporting. D) asking the patient to remove his contact lenses, irrigating both eyes for no more than 10 minutes, covering both eyes with sterile dressings, and transporting.