Ruffini ending

Ruffini ending

Infobox Anatomy
Name = PAGENAME
Latin =
GraySubject = 233
GrayPage = 1061



Caption = Nerve ending of Ruffini.


Caption2 =
System =
MeshName =
MeshNumber =
DorlandsPre = c_56
DorlandsSuf = 12261238
The Ruffini ending or Ruffini corpuscle is a class of slowly adapting mechanoreceptor thought to exist only in the glabrous dermis and subcutaneous tissue of humans. It is named after Angelo Ruffini.

Function

This spindle-shaped receptor is sensitive to skin stretch, and contributes to the kinesthetic sense of and control of finger position and movement. [cite book |last=Mountcastle |first=Vernon C. |year=2005 |title=The Sensory Hand: Neural Mechanisms of Somatic Sensation |publisher=Harvard University Press |pages=pp. 34] It is believed to be useful for monitoring slippage of objects along the surface of the skin, allowing modulation of grip on an object.

Ruffini 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 degrees, as well as continuous pressure states. [cite book |last=Hamilton |first=Nancy |year=2008 |title=Kinesiology: Scientific Basis of Human Motion |publisher=McGraw-Hill |pages=pp. 76-7]

Footnotes and references

External links

*


Wikimedia Foundation. 2010.

Игры ⚽ Поможем написать реферат

Look at other dictionaries:

  • Ruffini ending — a type of lamellated corpuscle in the dermis that is a slowly adapting receptor for sensations of continuous pressure. Called also Ruffini corpuscle …   Medical dictionary

  • Ruffini ending (brush corpuscle cylinder end-organ) — Ruf·fi·ni ending (brush, corpuscle, cylinder, end organ) (roo feґne) [Angelo Ruffini, Italian anatomist, 1864–1929] see under ending …   Medical dictionary

  • Ruffini's corpuscle — Ruf·fi·ni s corpuscle ru̇ fē nēz or Ruf·fi·ni corpuscle nē n any of numerous oval sensory end organs occurring in the subcutaneous tissue of the fingers called also Ruffini s brush, Ruffini s end organ Ruf·fi·ni rüf fē nē Angelo (1864 1929)… …   Medical dictionary

  • Ruffini's corpuscle — noun The synaptic ending of the sensory nervous system which are encapsulated and respond to stretch and torque. These responses are propagated back to dorsal root ganglia in the form of an action potential …   Wiktionary

  • ending — 1. A termination or conclusion. 2. A nerve e.. annulospiral e. one of two types of sensory nerve e. associated with a neuromuscular spindle (the other being the flower spray e.); after entering the muscle spindle, the fiber divides into two flat …   Medical dictionary

  • Ruffini brush — see under ending …   Medical dictionary

  • Ruffini corpuscle — see under ending …   Medical dictionary

  • Ruffini cylinder — see under ending …   Medical dictionary

  • Ruffini end-organ — see under ending …   Medical dictionary

  • Merkel nerve ending — Merkel nerve endings are mechanoreceptors found in the skin and mucosa of vertebrates that provide touch information to the brain. The information they provide are those regarding pressure and texture. Each ending consists of a Merkel cell in… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”