Name the four receptors that are located in the skin

(1) Merkel receptor – disk shaped, close to surface, slow adapting, small receptive field, respond best to PRESSURE and TEXTURE.

(2) Meissner corpuscle – stack of flattened cells with nerve fiber weaving through, close to surface, rapidly adapting, small reception force, respond best to LIGHT TOUCH, such as tapping or fluttering.

(3) Ruffini cylinder – many branched fibers in cigar shaped capsule, deep in dermis, slow adapting, large reception force, respond best to STRETCHING and play important role in kinesthetic sense.

(4) Pacinian corpuscle – layered, onion-like, deep in dermis, fast adapting, large reception force, respond best to DEEP PRESSURE touch and high frequency VIBRATION.

The four sensory receptors include mechanoreceptors, thermoreceptors, chemoreceptors and nociceptors.

hope this helps!

Work done = force ×distancebut force = mass ×gravityand gravity = 10m\s force = 2×10 = 20 work done = 20×3 = 60 joules

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