13. The Peripheral Nervous System

How does the strength of a sensory stimulus affect the generator potential in sensory receptors?

Spatial discrimination is the ability to distinguish between and precisely identify two or more stimuli. In terms of touch, which of these body parts do you think would have the lowest degree of spatial discrimination?

Mark the following statements about the spinal cord as true or false. If a statement is false, correct it to make a true statement.

e. The corticospinal tracts are the main sensory tracts in the spinal cord.

Fill in the blanks: The tracts of the posterior columns decussate in the_____, whereas the tracts of the anterolateral system decussate in the _____.