What occurs during hyperpolarization of a neuron plasma membrane?
A. Potassium ions are leaving the cell.
B. Sodium ions are entering the cells.
C. Both sodium and potassium ions are leaving the cell.
D. Sodium ions are leaving the cell.
E. Potassium ions are entering the cell.
Answer: A
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Which of the following is not true of meningitis?
A) Inflammation of the meninges occurs. B) Bacteria can be the cause. C) Viruses can be the cause. D) CSF flow can be disrupted. E) It only affects spinal meninges.
Cerebral blood flow is regulated by ________.
A) skin temperature B) ADH C) intrinsic autoregulatory mechanisms D) the hypothalamic "thermostat"
More than 95 percent of the protein in a red blood cell is
A) albumin. B) porphyrin. C) hemoglobin. D) immunoglobulin. E) fibrinogen.
The phrenic nerve does not arise from the __________
Fill in the blank(s) with the appropriate word(s)