Quiz 8

By which one of the following methods is a stronger stimulus coded by neurons differently from a weaker stimulus?

A stronger stimulus results in more action potentials/unit time.

Conscious thought is associated with which one of the following?

cerebral cortex

The left and right sides of the cerebrum are interconnected by which one of the following?

corpus callosum

Control of respiratory rate, heart rate, and blood pressure is integrated through the:

medulla oblongata

Cells that provide direct protection and physical support to neurons are

neuroglial cells

During which one of the following phases of an action potential do the sodium channels close and potassium channels open, releasing potassium from the neuron?

repolarization

A neuron at rest has a charge difference across its cell membrane, with the interior of the cell negative relative to the exterior. This difference in charge across the plasma membrane is referred to as ________ potential.

resting

Both voluntary and involuntary skeletal muscle movement are controlled through which one of the following divisions of the nervous system?

somatic division

Hormones act upon specific target tissues because:

target tissues display the appropriate receptor for a particular hormone

Saltatory conduction is:

the process of conduction leaping along myelinated neurons