Exam 6: The Peripheral Nervous System - Afferent Division - Special Senses

During precortical processing of sensory input,some features of stimuli are accentuated and others are suppressed through ____.

How many parallel rows of hair are in the organ of Corti?

Hearing damage can occur from brief exposure to high-intensity sounds,but also from frequent exposure to moderately loud noises greater than what sound level?​

The eustachian tube connects the middle ear to the ____.

What nerve fibers constitute the "fast pain" pathway?

Osmoreceptors detect changes in the concentration of solutes in the extracellular fluid.

The smaller the receptive field is in a region,the less its acuity or discriminative ability.

The cochlea is divided throughout most of its length into ____________________ fluid-filled ____________________ compartments.

Perception is our unconscious interpretation of the external world as created by the brain from a pattern of nerve impulses delivered to it from mechanoreceptors.

Describe the process of dark adaptation.

____________________ are nonvolatile chemical signals passed subconsciously between individuals of the same species.

Odor discrimination is coded by patterns of activity in the ____________________.

Substance P is unique to pain fibers and activates ascending pathways that transmit nociceptive signals to higher levels for further processing.

How many categories of pain receptors are there?​

Discuss how the gut and airways "taste" also.

Figure 6-20 Answer the following questions using the accompanying diagram. -Which number in the accompanying figure represents a cone?​

Night blindness is a result of a deficiency of what nutrient?

What two sensory systems are in the inner ear?

What painkilling and mood enhancing compounds are released during prolonged exercise,such as jogging?

Where is the optic chiasm located?