Merkel corpuscle

The concepts of the selective stimulation method are illustrated in Figure 8.6. There are four types of mechanoreceptors embedded in human fingers FA I (Meissner s corpuscle), SA I (Merkel corpuscle), FA II (Pacinian corpuscle) and SAII (Ruffini endings) [18]. It is known that each receptor has temporal response characteristics for mechanical stimulation and causes subjective sensation corresponding to its responsive deformation. For example, SA I detects static deformations of skin and produces static pressure sensation, and FA I detects the velocity of the deformation and produces the sense of fluttering vibration. Tactile impression is an integrated sensation of these elementary sensations. To present tactile feel arbitrarily, stimuh applied to these receptors should be controlled selectively. 

Meissner s corpuscle Melanocyte Merkel cells Langerhans ce Stratum corneum Stratum lucidum ... 

Meissner s corpuscle Melanocyle Merkel cells Langerhans cell... 

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