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How the maintenance of a polarized state in a resting nerve is provided?
Wiki User
∙ 12y ago
Maintenance of a polarized state of a resting nerve is achieved through continuous expenditure of energy.
Wiki User
∙ 12y ago
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When a resting nerve fiber is polarized sodium and potassium ions is higher on the inside of its membrane?
A resting nerve fiber is polarized because the concentration ofNa+ is higher on the outside and K+ is higher on the inside.
What is a nerve membrane at rest called?
When the neural membrane (neurolemma) is at rest it is said to have resting potential, polarized, and has a negative charge inside.
How is a resting potential achieved in the nervous system?
The resting nerve cell is not being stimulated to send a nerve impulse
How does nerve fiber become depolarized?
A nerve fiber becomes polarized when the resting potential of the membrane changes. It starts out with an unequal distribution of charges- the outside is more positive and the inside is less positive. (Sodium (Na+) is in a higher concentration on the outside of the membrane and Potassium (K+) is in a lower concentration on the inside of the membrane.) A stimulus changes the gradient- when more Na+ flows in, the resting potential changes and polarization occurs, allowing for an action potential to be propagated down the axon.
When a nerve fiber is polarized the concentration is what?
http://wiki.answers.com/Q/When_a_nerve_fiber_is_polarized_the_concentration_is_what http://wiki.answers.com/Q/When_a_nerve_fiber_is_polarized_the_concentration_is_what
What is the inside charge of a nerve at its resting potentail?
Neurons have a resting membrane potential of approximately -70mV. Muscle cells have a resting membrane potential of approximately -90mV.
Parasympathetic innervation of the stomach is provided by?
Parasympathetic innervation of the stomach is provided by the vagus nerve. The vagus nerve is located in the brain and is also known as the pneumogastric nerve.
A sodium channel blocker would increasedecreaseserum sodium levels outside of normal resting nerve cells?
a sodium channel blocker would (increase;decrease) serum sodium levels outside of normal resting nerve cells
Is there any system repair and maintenance of nerve cell?
non
What ion determines the resting membrane potential of nerve and muscle?
The concentrations on Na+ outside the cell and concentrations of K+ inside the cell determine the resting membrane potential.
The resting potential of a neuron is approximately?
The resting potential of a neuron is approximately -70 millivolts. This is due to the difference in charge across the neuron's membrane, with the inside being more negatively charged compared to the outside.
What accounts for the resting membrane potential seen in unstimulated nerve and muscle cells?
Sodium-potassium pump
