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

The social environment - stress of hospitalization, The Social Environment ...

The Social Environment   When the child is admitted to the hospital his social environment is totally changed and all health team members are strangers for him. It is your resp

Explain about the torbed dryer, Explain about the Torbed Dryer? On the ...

Explain about the Torbed Dryer? On the other hand, is a variation of the fluidized bed dryer. This is designed for use with particulate foods. Torbed dryers are used to dry haz

Who is known as father of english botany, Who is known as Father of English...

Who is known as Father of English Botany? William Turner (1515-1568), whose 'A New Herbal' printed in English appeared in 1551 (first part), 1562 (second part) and 1568 (third

What is crossing over, What is crossing over? In which period of meiosis do...

What is crossing over? In which period of meiosis does this event occur? Crossing over is the eventual exchange of chromosomal fragments among homologous chromosomes. The pheno

Energy input in ecosystem, Energy Input in Ecosystem Survival and func...

Energy Input in Ecosystem Survival and functioning of ecosystem is dependent on the input of energy. Continuous availability of energy is essential for supporting diverse ecos

Nutrients and the soil, Nutrients and the Soil Early experiments on mi...

Nutrients and the Soil Early experiments on mineral uptake were performed by Hoagland, Stout and Amon in 1923. They showed that minerals were taken up from the soil primarily

What is hypertrichosis of the ear, In humans, attached earlobes are a domin...

In humans, attached earlobes are a dominant feature over free earlobes while hypertrichosis of the ear is a holandric (Y-linked) feature. A person with attached earlobes and extens

Explain the principle of microscopy, Explain the Principle of Microscopy? ...

Explain the Principle of Microscopy? When the light passes from one medium to another, refraction occurs, i.e., the ray is bent at the interface. The direction and the magnitud

Explain the procedure estimation of the amount of bacteria, Explain the Pro...

Explain the Procedure Estimation of the Amount of Bacteria? Now carry out the exercise following the steps enumerated herewith. 1. Prepare ten fold dilutions of E. coli cult

What is the function of the plant cell wall, Q. What is the function of the...

Q. What is the function of the plant cell wall? The plant cell wall has protective and structural functions. It plays an significant role in the constraint of the cell size, pr

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