When comparing the tactile acuity of various body parts, what have you concluded about the number of receptors in the palm of your hand relative to the number of receptors on your shoulder? a. The tactile acuity for the palm is higher than for the shoulders. Therefore, more receptors are found on the palm than on the shoulders. b. The tactile acuity for the shoulders is higher than for the palm. Therefore, more receptors are found on the shoulders than on the palm. c. The tactile acuity for the shoulders is higher than for the palm. Therefore, more receptors are found on the palm than on the shoulders. d. The tactile acuity for the palm is higher than for the shoulders. Therefore, more receptors are found on the shoulders than on the palm.

Phlebotomy Essentials
6th Edition
ISBN:9781451194524
Author:Ruth McCall, Cathee M. Tankersley MT(ASCP)
Publisher:Ruth McCall, Cathee M. Tankersley MT(ASCP)
Chapter1: Phlebotomy: Past And Present And The Healthcare Setting
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Tactile acuity refers to the minimum separation required between two objects for the brain to perceive them as two separate points.  The Two-Point Discrimination test is one method used to measure tactile acuity.  A two-pronged instrument such as a bent paperclip is pressed at various locations on the body.  The distance between the two ends is increased gradually until the person feels two distinct points.  This distance is then measured.  The less the distance that two points can be perceived separately, the higher the tactile acuity of that area. 

When comparing the tactile acuity of various body parts, what have you concluded about the number of receptors in the palm of your hand relative to the number of receptors on your shoulder?

a. The tactile acuity for the palm is higher than for the shoulders. Therefore, more receptors are found on the palm than on the shoulders.
b. The tactile acuity for the shoulders is higher than for the palm. Therefore, more receptors are found on the shoulders than on the palm.
c. The tactile acuity for the shoulders is higher than for the palm. Therefore, more receptors are found on the palm than on the shoulders.
d. The tactile acuity for the palm is higher than for the shoulders. Therefore, more receptors are found on the shoulders than on the palm.
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