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# Skin receptors: Meissner, Pacinian, Merkel, Ruffini and free nerve endings

- Cell

Tiny nerve endings in the skin feel touch, vibration, stretch, heat, cold and pain, each type tuned to its own job.

Updated 2026-11-01

**See it in 3D:** [Skin](https://durgical.com/en/anatomy/skin/)

## Key points

- Meissner = light touch, rapid, dermal papillae of glabrous skin.
- Pacinian = vibration and deep pressure, very rapid, onion-like lamellae deep in the dermis.
- Merkel = sustained pressure and texture, slow, basal epidermis.
- Ruffini = stretch, slow, dermis and joint capsules.
- Free nerve endings = pain, temperature and itch; bare endings that reach up into the epidermis.

## What it is

The skin's sensory receptors are the endings of sensory neurons, some bare and some wrapped in capsules or paired with a special epidermal cell. Their depth and their capsule decide what they detect and whether they keep firing (slow adaptation) or fire only at the start and end of a stimulus (rapid adaptation). Loss of these endings in diabetic neuropathy is why the foot stops feeling injuries.

## Structure

- Meissner corpuscle: oval, a few axon branches spiralling between stacked flattened Schwann-like cells, inside a dermal papilla.
- Pacinian corpuscle: large and oval, like a sliced onion in H&E, with many concentric lamellae around one unmyelinated axon tip.
- Merkel cell: a clear cell in the basal layer of the epidermis, attached to keratinocytes by desmosomes, with a disc-shaped nerve ending beneath it.
- Ruffini corpuscle: a thin, spindle-shaped capsule with nerve endings woven among collagen fibres.

## Skin receptors at a glance

| Receptor | Where | Senses | Adapts |
| --- | --- | --- | --- |
| Free nerve endings | Epidermis and dermis everywhere; also cornea | Pain, temperature, itch, crude touch | Mostly slow |
| Merkel cell–neurite complex | Stratum basale, densest in fingertips and lips | Sustained light pressure, shape and texture | Slow |
| Meissner corpuscle | Dermal papillae of hairless (glabrous) skin | Light touch, low-frequency vibration | Rapid |
| Pacinian (lamellated) corpuscle | Deep reticular dermis and hypodermis; also joints and viscera | Deep pressure, high-frequency vibration | Very rapid |
| Ruffini corpuscle | Dermis and joint capsules | Skin stretch, sustained pressure, joint position | Slow |
| Hair follicle endings | Around hair follicles in the dermis | Hair movement | Rapid |

## Clinical notes

- Diabetic neuropathy starts in the feet (longest axons): loss of protective sensation leads to painless ulcers; the monofilament and vibration tests check it.
- Leprosy, still seen in Colombia, damages skin nerves and gives anaesthetic skin patches.
- Merkel cell carcinoma: an aggressive neuroendocrine skin cancer of sun-exposed skin in older or immunosuppressed people.

## Memory aid

Shallow and quick Meissner, deep and quicker Pacini; Merkel and Ruffini hold on (slow).

## Test yourself

Think of the answer, then tap the question to see it.

## Which receptor looks like a sliced onion under the microscope, and what does it sense?

The Pacinian (lamellated) corpuscle, deep in the dermis and hypodermis; it senses vibration and deep pressure and adapts very rapidly.

## Where are Meissner corpuscles found?

In the dermal papillae just under the epidermis, most of all in hairless skin such as fingertips, palms, soles and lips.

## Which two skin mechanoreceptors adapt slowly?

The Merkel cell–neurite complex (sustained pressure, texture) and the Ruffini corpuscle (stretch).

## Which receptors carry pain and temperature from the skin?

Free nerve endings of thin myelinated (A-delta) and unmyelinated (C) fibres.

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## See it in 3D

The structures of Durgical's 3D anatomy where it is found.

- [Skin](https://durgical.com/en/anatomy/skin/)

## Related

- [Skin: epidermis layers, dermis, hypodermis](https://durgical.com/en/histology/skin-epidermis-layers-dermis-hypodermis/)
- [Keratinocytes, melanocytes, Langerhans and Merkel cells](https://durgical.com/en/histology/keratinocytes-melanocytes-langerhans-and-merkel-cells/)
- [Peripheral nerve: endoneurium, perineurium, epineurium; myelin](https://durgical.com/en/histology/peripheral-nerve-endoneurium-perineurium-epineurium-myelin/)
- [The neuron and synapse](https://durgical.com/en/histology/the-neuron-and-synapse/)

## Related conditions

- [Diabetic foot](https://durgical.com/en/conditions/diabetic-foot/)
- [Carpal tunnel syndrome](https://durgical.com/en/conditions/carpal-tunnel-syndrome/)

## Microorganisms

- [Mycobacterium leprae](https://durgical.com/en/microbiology/mycobacterium-leprae/)

[← All of histology](https://durgical.com/en/histology/)

Educational content on normal microscopic structure and its clinical relevance; no substitute for studying slides or for a health professional's advice.

Sources: [14.1 Sensory Perception](https://openstax.org/books/anatomy-and-physiology-2e/pages/14-1-sensory-perception) (OpenStax (Rice University), 2022); [Diabetes and nerve damage: MedlinePlus Medical Encyclopedia](https://medlineplus.gov/ency/article/000693.htm) (MedlinePlus, US National Library of Medicine, 2026).

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Representative model, for educational purposes only.

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Source: https://durgical.com/en/histology/skin-receptors-meissner-pacinian-merkel-ruffini-and-free-nerve-endings/
License: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Cite as: DurgiPedia (durgical.com), https://durgical.com/en/histology/skin-receptors-meissner-pacinian-merkel-ruffini-and-free-nerve-endings/