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Specialized to detect mechanical forces, including touch, pressure, vibration, and cutaneous tension. There are 4 main cell types:
- Meissner's corpuscles
- Pacinian corpuscles
- Merkel's discs
- Ruffini's endings

These four cell types are referred to as highly sensitive tactile receptors, also referred to as low-threshold mechanoreceptors. 

Mechanoreceptors

Tactile receptors detect light touch. There are four types of tactile receptors, which are found primarily in the dermis layer:
- Pacinian Corpuscles
- Meissner Corpuscles
- Merkel's Discs
- Ruffini's Endings

Tactile Receptors

Meissner's corpuscles are tactile receptors in the skin that are sensitive to pressure and lower-frequency vibrations. This function contributes to the perception of texture and detailed form.

Meissner's Corpuscles

Pacinian corpuscles are receptors in the skin that specialize in detecting transient pressure and high-frequency vibrations.

Pacinian Corpuscles

Merkel's disks are a type of touch receptor found in the skin that is specialized to respond to light pressure.

Merkel's Disks

Ruffini corpuscles, also known as Ruffini's endings, are slow-adapting touch receptors within the skin that are specialized to detect stretch.

Ruffini Corpuscles

A person is blindfolded and asked to identify an object solely by touch. They run their fingers over the object, noting its smooth surface, its defined edges, and the slight vibration as their hand moves. Which of these perceptions is made possible by the class of sensory cells specialized for detecting mechanical forces?

A person holds a vibrating mobile phone while simultaneously tracing a finger across its smooth glass screen to feel for a tiny crack. Which statement best analyzes how the nervous system processes these distinct tactile inputs?

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