Meissner’s corpuscle is for-
**Core Concept**
Meissner's corpuscles are specialized mechanoreceptors found in the skin that play a crucial role in detecting light touch and pressure. They are one of the two types of tactile receptors in the skin, the other being Pacinian corpuscles.
**Why the Correct Answer is Right**
Meissner's corpuscles are responsible for detecting subtle changes in pressure and texture, allowing us to perceive the shape, size, and texture of objects. They are located in the dermal papillae of the epidermis and are innervated by A-beta nerve fibers. The activation of Meissner's corpuscles triggers a rapid depolarization of the nerve fibers, which sends signals to the brain, enabling us to perceive touch and pressure.
**Why Each Wrong Option is Incorrect**
- **Option A:** This option is incorrect because Meissner's corpuscles are not responsible for detecting pain or temperature.
- **Option B:** This option is incorrect because Pacinian corpuscles, not Meissner's corpuscles, are responsible for detecting vibration and pressure.
- **Option C:** This option is incorrect because Ruffini's corpuscles, not Meissner's corpuscles, are responsible for detecting sustained pressure and skin stretch.
**Clinical Pearl / High-Yield Fact**
Meissner's corpuscles are rapidly adapting receptors, meaning they quickly lose sensitivity to repeated stimuli. This is in contrast to Pacinian corpuscles, which are slowly adapting receptors that remain sensitive to sustained pressure.
**Correct Answer: C. Pacinian corpuscles are responsible for detecting vibration and pressure.**