NEUROFISIOLOGÍA

Partes de la neurona que transmiten el impulso eléctrico

• Axón y soma

• Dendritas y axones

• Soma y dendritas

• Botón sinápticp

La fase B de la gráfica indica la etapa de:

• Hyperpolarization

• Overshoot

• Depolarization

• Repolarization

In a nerve cell, an action potential occurs following the rapid influx of K+ into the cell.

• TRUE

• FALSE

Which best describes the axon when the neuron is at rest (not conducting an impulse)?

• Polarized

• Depolarized

• Repolarized

• Hyperpolarized

La siguiente imágen a que corresponde

• Un tejido

• Un célula

• Un órgano

• Una molécula

What 2 forces cause the sodium ions to move into the axon during depolarization?

• Concentration Gradient

• Electrical Gradient

• Na/K pump

• Voltage Gated Channels

What is the charge on the outside of the axon during the resting membrane potential?

• +

• -

• neutral

During 'Period A' another action potential following stimulus at any strength cannot be produced because:

• Sodium channels are inactive.

• Too many potassium channels are opened

Regarding factors affecting the conduction velocity/ speed of action potential propagation:

A lower pH level decreases the conduction velocity

• TRUE

• FALSE

During the repolarization phase of an action potential:

Influx of chloride occur.

• TRUE

• FALSE