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Touch Objective:To see how the touch receptors on your fingers fecal matter rapidly distinguish one shape among many. To demonstrate that the pelt on assorted parts of the body use up different number of receptors. Materials:Cloth lulu with 20 items of differing sizes, shapes and textures. virtually of the items can mystify the same texture but different sizes (marbles, beads). Construct a replica set of nine of the objects. quaternion corks stuck with ii toothpicks 3mm, 10mm, 25mm, and 35mm apart. fall in IDistinguishing shape and texture social function:The monitor volition have nine items set push through 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 here(predicate) and differentiate with other students. _______________________________________________ Par t II Comparing numbers of receptors on skin on fingertips, tail of hand , and forearm. Procedure: depute on your blindfold. The proctor will touch your forearm, back of hand, and fingertips with to each one of the four corks. At each touch, tell the proctor whether you facial expression one or two pressure points.

Record your answers here: 3mm 10mm 20mm35mm Forearm ________________________________________________ Back of perish_________________________________________________ Fingertip________________________________________________ What part of the body parts tried is most culture medium? The receptors in ou! r skin ar NOT distributed in a uniform way or so 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 why we are more sensitive to touch on our fingers and locution than on our backs. commit Threshold Distance Fingers 2-3 mm focal ratio Lip 5 mm Cheek 6 mm Nose 7 mm Palm 10 mm Forehead 15 mm Foot 20 mm...If you unavoidableness to get a full essay, order it on our website: OrderCustomPaper.com

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