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

What are the three main types of rna, What are the three main types of RNA?...

What are the three main types of RNA? What is meant by heterogeneous RNA? Messenger RNA, or mRNA, transfer RNA, or tRNA, and ribosomal RNA, or rRNA, are the three main kinds of

What are biotic factors, What are biotic factors? Biotic factors are li...

What are biotic factors? Biotic factors are living beings (plants, microorganisms and animals) that are part of a given environment.

Taxonomic classification, flying fish,cuttlefish,silverfish - pisces are co...

flying fish,cuttlefish,silverfish - pisces are correctly matched with taxonomic classification

Animal nutrition, Briefly explain the following feeding mechanisms in holoz...

Briefly explain the following feeding mechanisms in holozoic organisms: filer feeding,fluid feeding and deposit feeding.

Is there respiratory pigment in the annelid blood, Q. Is there respiratory ...

Q. Is there respiratory pigment in the annelid blood? The blood in beings of the phylum Annelida contains the respiratory pigment hemoglobin the same found in chordates and oth

#Types of Blastula, Give a detailed description of stereoblastula, please ?...

Give a detailed description of stereoblastula, please ?#

Mixed mitral stenosis and regurgitation, Mixed Mitral Stenosis and Regurgit...

Mixed Mitral Stenosis and Regurgitation The most common cause for a combined lesion is rheumatic, Very rarely; it could be of congenital origin. Regurgitation in a stenotic val

Residue in foods, Residue is defined medically as the solid contents that h...

Residue is defined medically as the solid contents that have reached the lower intestine. A low residue diet is composed of foods, which are easily digested and readily absorbed, r

Diagnosis of meningitis, Diagnosis Lumbar puncture is done which shows...

Diagnosis Lumbar puncture is done which shows cloudy CSF with increased pressure, the white cell count predominantly contains neutrophils. CSF proteins are increased but sug

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