The Nervous System

Regulating involuntary bodily functions

Connecting the two cerebral hemispheres

Processing sensory information from the eyes

Controlling motor movements on one side of the body

They will be able to verbally identify the image.

They will be unable to verbally identify the image but may be able to draw it with their left hand.

They will be unable to perceive the image at all.

They will experience a seizure due to the lack of communication between hemispheres.

Depolarization via ion channels, followed by polarization via Na+/K+ pump.

Neurotransmitter release, followed by polarization and then depolarization.

Polarization established by the Na+/K+ pump, followed by depolarization through ion channel opening.

Ion channel opening, followed by Na+/K+ pump activation, then polarization.

Axon

Myelin sheath

Dendrite

Nucleus

To produce neurotransmitters.

To increase the speed of nerve impulse transmission.

To connect neurons to muscle cells.

To regulate the neuron's metabolic processes.

High concentration of sodium inside, high concentration of potassium outside.

High concentration of both sodium and potassium inside.

High concentration of sodium outside, high concentration of potassium inside.

Equal concentrations of sodium and potassium both inside and outside.

Potassium ions flow out of the cell.

The cell membrane becomes hyperpolarized.

Sodium ions flow into the cell, causing depolarization.

The sodium-potassium pump actively transports ions.

Influx of potassium ions

Efflux of sodium ions

Influx of sodium ions

Efflux of calcium ions

By increasing the amplitude of individual action potentials.

By varying the speed at which action potentials travel.

By increasing the frequency of action potentials.

By changing the type of neurotransmitter released.

To repolarize the neuronal membrane.

To trigger the release of neurotransmitters into the synaptic cleft.

To bind to receptors on the postsynaptic neuron.

To establish the resting membrane potential.