The nerve fibre in its resting stage is |
|||
a) |
More permeable to |
b) |
Semi-permeable to |
c) |
Less permeable to |
d) |
All of these |
The nerve fibre in its resting stage is |
|||
a) |
More permeable to |
b) |
Semi-permeable to |
c) |
Less permeable to |
d) |
All of these |
(a)
In resting nerve fibre (a nerve fibre that is not conducting an impulse), sodium ions ( ) predominate in the extra cellular fluid, whereas potassium ions (
) predominate in the intracellular fluid (within the fibre). This result in the fact that, the resting membrane has only a poor permeability for
although it has a higher permeability for
.
Movement of tongue muscle is controlled by |
|||||||
a) |
Facial nerve |
b) |
Trigeminal nerve |
c) |
Hypoglossal nerve |
d) |
Vagus nerve |
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