Learn Before
Mechanoreceptors
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.
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Learn After
Tactile Receptors
Meissner's Corpuscles
Pacinian Corpuscles
Merkel's Disks
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?