Injured neurons can recover their functional capabilities if
A) the cells can divide enough times to replace those that are lost.
B) the oxygen and nutrient supplies are restored.
C) the cause of the damage is removed within a period of weeks.
D) All of the answers are correct.
E) None of the answers are correct.
B) the oxygen and nutrient supplies are restored.
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The plexus that supplies the upper limbs is the ________ plexus.
A. brachial B. branchial C. cervical D. coccygeal E. lumbar
How would the absolute refractory period be affected if voltage-regulated sodium channels failed to inactivate?
A) It would last indefinitely. B) It would be much briefer. C) It would be basically unaffected.
Which of the following orientation and directional terms have the same meaning (in humans)?
A) superior and caudal B) inferior and cranial C) inferior and cephalic D) anterior and ventral E) anterior and dorsal
Which local chemical changes do not occur during a period of increased cell activity?
a. increased CO2 b. increased acid c. decreased adenosine release d. increased K+ e. increased osmolarity