Define pacinian corpuscules, Biology

Assignment Help:

Q. Define Pacinian corpuscules?

Pacinian corpuscules are an example of sensory receptors scattered deep in the subcutaneous tissue underlying skin or in viscera.  These mechanoreceptors are stimulated by deep pressure and vibration.  Can form very large structures almost 2mm in size, and visible to the naked eye.

Seen in longitudinal section, the Pacinian corpuscle resembles a cut onion, its single dendrite is surrounded by up to 60 layers of flattened Schwann cells wrapped in a connective tissue capsule.

Note:  Proprioreceptors are located in skeletal muscles, tendons, and joints.  They respond mainly to stretch and constantly send signals to CNS concerning body movement and posture.


Related Discussions:- Define pacinian corpuscules

Explain taxonomists as synthesisers, Explain Taxonomists as Synthesisers? ...

Explain Taxonomists as Synthesisers? Your study of the earlier units of taxonomy, in particular its history must have made you aware that the field of taxonomy has changed cons

Monohybrid cross, why does the monohybrid always result in a 1:2:1 ratio?

why does the monohybrid always result in a 1:2:1 ratio?

Caseous lymphadenitis, Caseous lymphadenitis Caseous lymphadenitis is a ch...

Caseous lymphadenitis Caseous lymphadenitis is a chronic disease of sheep and goats. It is characterized by abscess formation in lymph nodes and sometimes in lungs and other organ

Observation of the anatomical structures, This assignment was done, sent in...

This assignment was done, sent in marked then sent back to me to be resubmitted. Comments were grammar & structure to be reviewed so could you please proof read & make it more acad

Clinical manifestation of emphysema, Clinical Manifestation   Early on...

Clinical Manifestation   Early onset of dyspnea on exertion (DOE) which progresses to continuous dyspnea. Rhonchi, crackles , accessory muscle breathing, Increased rate of br

What kind of eye defect can give rise to short-sightedness, What kind of ey...

What kind of eye defect can give rise to short-sightedness? Long eyeballs, large eyeballs, too powerful a lens or a combination of these defects can give increase to short-sigh

How dissimilar are intracellular and extracellular digestion, How dissimila...

How dissimilar are intracellular and extracellular digestion? What is the evolutionary benefit of extracellular digestion? Intracellular digestion is that in which the breaking

What do you mean by a dihybrid cross, A dihybrid cross: Determines the gene...

A dihybrid cross: Determines the genetic makeup of an organism always involves homozygous alleles. Always involves organisms that are heterozygous at all loci. Always involves alle

Define about skeletal system, Define about Skeletal system Skeletal sy...

Define about Skeletal system Skeletal system provides framework to the body; supports the soft tissues; protects delicate organs. The skeletal system is made up of bones an

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd