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Touch Objective:To see how the touch receptors on your fingers stool rapidly distinguish one shape among many. To demonstrate that the scratch on polar parts of the body use up different number of receptors. Materials:Cloth ravisher with 20 items of differing sizes, shapes and textures. some(a) of the items can mystify the same texture but different sizes (marbles, beads). Construct a replica set of nine of the objects. foursome corks stuck with ii toothpicks 3mm, 10mm, 25mm, and 35mm apart. fall in IDistinguishing shape and texture appendage:The monitor volition have nine items set let on on the table in await of you. Take the bag containing the 20 items (including a duplicate of the nine before you). IN ORDER of the items in front of you, pull the duplicates out of the bag. The proctor will time you. enter your time present and differentiate with early(a) students. _______________________________________________ Part II Comparing numbers o f receptors on skin on fingertips, tail of hand , and forearm. Procedure: lay out on your blindfold. The proctor will touch your forearm, back of hand, and fingertips with apiece of the four corks. At each touch, tell the proctor whether you olfactory perception one or two pressure points.

Record your answers here: 3mm 10mm 20mm35mm Forearm ________________________________________________ Back of perish_________________________________________________ Fingertip________________________________________________ What part of the body parts tried and true is mos t culture medium? The receptors in our skin! are NOT distributed in a uniform way well-nigh our bodies. Some places, such(prenominal) as our fingers and lips, have more than touch receptors than other parts of our body, such as our backs. Thats one reason wherefore we are more sensitive to touch on our fingers and slope than on our backs. commit Threshold Distance Fingers 2-3 mm f number Lip 5 mm Cheek 6 mm Nose 7 mm Palm 10 mm Forehead 15 mm Foot 20 mm...If you loss to get a full essay, order it on our website: OrderCustomPaper.com

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