Receptor Endings

In the skin there are 5 types of nerve-ends and they all have their own function and location.
Some of them lie deeper into the skin, some of them more to the surface.
skin

Receptors are specialized endings of afferent neurons or separate cells that affect ends of afferent neurons.
They collect information about external and internal environment in various energy forms-and energy that activates a receptor is called a stimulus.

receptor endings	function	location
Hair Follicle Ending	Responds to hair displacement.	Wraps around hair follicle in, of course, hairy skin.
Ruffini Endings	Responds to pressure on skin.	Dermis of both hairy and glabrous skin.
Krause corpuscle	Responds to pressure.	Lips, tongue, and genitals.
Pacinian corpuscle	Responds to vibration. Most sensitive in 150-300 Hz range	Deep layers of dermis in both hairy and glabrous skin.
Meissner corpuscle	Responds to vibration. Most sensitive in 20-40 Hz range	Dermis of glabrous skin.
Free nerve endings	Different types of free nerve endings that respond to mechanical, thermal or noxious stimulation.	Various types are found throughout the skin.

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