The cell body of neurons is generally
A) 10% of the cell volume.
B) 50% of the cell volume.
C) 90% of the cell volume.
D) found in the same position on every neuron.
A) 10% of the cell volume.
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Which of these ganglia supplies parasympathetic nerve fibers to the eye?
A. Ciliary B. Otic C. Pterygopalatine D.celiac
Which of the following is true regarding St. John's Wort?
a. T ½ of 60 hrs b. 40-60% reaches systemic circulation c. Significant inhibition of Cyt. P450 system d. Peak blood levels occur in 10-15 minutes e. A and B f. C and D g. All of the above
Osmosis is the diffusion of
A. solutes across a membrane. B. water across a membrane. C. water within the inside of a cell. D. solutes within the inside of a cell.
Which of the following conditions must be met if diffusion across a membrane is to occur?
A) A concentration gradient must be present, and the membrane can't be permeable to the substance being transported. B) A concentration gradient must be present, and the membrane must be permeable to the substance that is to be transported. C) The membrane must be permeable to the substance that is to be transported. D) A concentration gradient must be present.