F. Two-point Discrimination Test Using calipers, test the ability of the subject to differentiate two distinct sensations when the skin is touched simultaneously at two points. If calipers are not available, use two blunt probes (or forceps) and a metric ruler. Start with the points right together, then gradually increase the distance apart. Record the distance at which the subject first reports feeling two distinct points of contact with the skin (the two-point threshold). Test the areas of the body as listed in the chart below. Body area Two-point threshold (mm) Palm of hand Face Back of hand Fingertips Lips Back of neck of calf 1. Of the tested areas of the body, which ones seem to have the greatest density of receptors (smallest two-point threshold)? a. Palm of the hand c. Fingertips d. Lips e. Back of neck f. Back of calf b. Face back of hand 2. Which have the least receptor cells? a. Palm of the hand e. Back of neck c. Fingertips d. Lips b. Face back of hand f. Back of calf

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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F. Two-point Discrimination Test
Using calipers, test the ability of the subject to differentiate two distinct sensations when the
skin is touched simultaneously at two points. If calipers are not available, use two blunt probes (or
forceps) and a metric ruler. Start with the points right together, then gradually increase the distance
apart. Record the distance at which the subject first reports feeling two distinct points of contact with
the skin (the two-point threshold). Test the areas of the body as listed in the chart below.
Body area
Two-point threshold (mm)
Palm of hand
Face Back of hand
Fingertips
Lips
Back of neck
of calf
1. Of the tested areas of the body, which ones seem to have the greatest density of receptors
(smallest two-point threshold)?
a. Palm of the hand
e. Back of neck
c. Fingertips
d. Lips
b. Face back of hand
f. Back of calf
2. Which have the least receptor
a. Palm of the hand
e. Back of neck
c. Fingertips
d. Lips
b. Face back of hand
f. Back of calf
cells?
Transcribed Image Text:F. Two-point Discrimination Test Using calipers, test the ability of the subject to differentiate two distinct sensations when the skin is touched simultaneously at two points. If calipers are not available, use two blunt probes (or forceps) and a metric ruler. Start with the points right together, then gradually increase the distance apart. Record the distance at which the subject first reports feeling two distinct points of contact with the skin (the two-point threshold). Test the areas of the body as listed in the chart below. Body area Two-point threshold (mm) Palm of hand Face Back of hand Fingertips Lips Back of neck of calf 1. Of the tested areas of the body, which ones seem to have the greatest density of receptors (smallest two-point threshold)? a. Palm of the hand e. Back of neck c. Fingertips d. Lips b. Face back of hand f. Back of calf 2. Which have the least receptor a. Palm of the hand e. Back of neck c. Fingertips d. Lips b. Face back of hand f. Back of calf cells?
F. Two-point Discrimination Test
Transcribed Image Text:F. Two-point Discrimination Test
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