Template:Touch terms

From Embryology
Touch Terms  
  • free nerve endings- abundantly innervate the epidermis, include nociceptors and low-threshold C-fibers.
  • glabrous - smooth hairless skin for example the fingertips, palms, and soles.
  • lanceolate endings - rapidly adapting or down hair afferents sensitive light-touch receptors that depend on Neurotrophin-4 for proper development.
  • Meissner’s corpuscles - glabrous skin mechanoreceptor lie between the dermal papillae for sensitivity to light touch. They are rapidly adaptive elongated receptors formed by a connective tissue capsule that formed by several lamellae of Schwann cells enclosing one or more afferent nerve fibres.
  • Merkel cells - (Merkel's disks, Merkel cell–neuron complexes) mediate slowly adapting type I (SAI) responses, which are characterized by an irregular firing pattern during sustained pressure.
  • Pacinian corpuscles- lamellar vibration receptors that produce rapidly adapting responses.
  • Ruffini endings - proposed to mediate stretch-sensitive slowly adapting type II (SAII) responses, unknown developmental pathbwayreceptors.
  • somatosensory - neural sensation associated with pressure (touch), pain, or temperature.
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