Bulbous corpuscle

 ( Sensory Receptors ) 

The bulbous corpuscle, Ruffini ending or Ruffini corpuscle is a slowly adapting mechanoreceptor located in the skin between the dermal papillae and the hypodermis. It is named after Angelo Ruffini.

---

Structure Ruffini corpuscles are enlarged dendritic endings with elongated capsules.

(2025). 9780070677227, TATA McGraw-Hill Lange. ISBN 9780070677227

---

Function This spindle-shaped receptor is sensitive to skin stretch, and contributes to the kinesthetic sense of and control of finger position and movement. They are at the highest density around the fingernails where they act in monitoring slippage of objects along the surface of the skin, allowing modulation of grip on an object.

Ruffini corpuscles respond to sustained pressure

and show very little adaptation.

Arthur c. Guyton9788181470577 ISBN 9788181470577

Ruffinian endings are located in the deep layers of the skin, and register mechanical deformation within joints, more specifically angle change, with a specificity of up to 2.75 degrees, as well as continuous pressure states. They also act as thermoreceptors that respond for a long time, so in case of deep burn there will be no pain, as these receptors will be burned off.

---

External links

Post Comment