Sensitive to tonic receptors with small receptive

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Sensitive to tonicreceptors withsmall receptivefields.Single myelinatedafferent fiberswith flatteneddendriticprocesses makeclose contact withepithelial cells inthe stratumbasale of the skin.Epithelial cells ofthe skin andstratum basale.Bulbous corpuscle(Ruffinicorpuscles)Sensitive topressure anddistortion of thedeep dermis.Tonic with littleadaptation.Capsule surroundscollagen fibersthat arecontinuous withsurroundingdermis.Deep reticulardermisLamellarcorpuscleSensitive to deeppressure and high-Relatively large, 4mm in length andLocatedthroughout
(Paciniancorpuscles)frequencyvibration. Fast-adaptingreceptors,sensitive to highfrequency stimuli.1 mm in diameter.Contains a singledendrite withinseries of layers ofcollagen fibersand supportingcells. Submergedwithin interstitialfluid.dermis, superficialand deep fasciae,and in jointcapsules. Visceralsensory is in thepancreas, urethraand urinarybladderTactile corpuscle(Meissnercorpuscles)Sensations of finetouch andpressure and low-frequencyvibrations. Adaptseconds aftercontact.Large structureabout 100 um inlength and 50 umin width.Dendrites coiledand interwovensurrounded inSchwan cells.Fibrous capsulesurrounds it andattaches todermis.Abundant ineyelids, lips,nipples, genitalia,and fingertips.
6. What is the sensory homunculus and why does it depict the body in adistorted fashion?
region, but not the region’s physical size. Many neurons are required to processsensory information and touch receptors in areas such as the lips, tongue andfinger tips than an area such as the back, where there are fewer touch receptors.7.Sensation to perception (awareness) is a three step process.Describethat process. What is the role of the thalamus in the sensory pathwayfrom initial sensation to perception?

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