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 the flexibility exercises and its examples, Flexibility Exercises a...

Flexibility Exercises and Examples In  flexibility exercises, movable joints allow one or more of the following types of movements. Flexion - Flexion decreases the joint ang

Define criteria for assessment of vitamin d status, Define Criteria for Ass...

Define Criteria for Assessment of Vitamin D Status? You may recall the events involved in calcium homeostasis described earlier in this section. We studied that sufficient 25-O

What is the virus that causes flu, What is the virus that causes flu? Why d...

What is the virus that causes flu? Why doesn't the body create permanent immunity against that virus? How does the vaccine against flu work? Flu is a disease caused by the inf

In what ways is water lost from the body, In what ways is water lost from t...

In what ways is water lost from the body? Water is lost from the body by a) Evaporation (lungs and skin), b) Urination and defaecation (faeces always have water).

What is severity and extent of lesion in cad, What is Severity and Extent o...

What is Severity and Extent of Lesion in coronaw artery disease? Apart from the high prevalence, the other disturbing features of CAD in South Asians are the severity and exten

Cytology, who is the first person who saw the cell

who is the first person who saw the cell

Define mineral requirements during pregnancy period - iron, Define Mineral ...

Define Mineral Requirements during pregnancy period - Iron? While B 12 and folk acid are needed for the normal erythropoiesis, they must be accompanied by adequate amounts of

Clinical manifestations of infective endocarditis, Clinical Manifestations ...

Clinical Manifestations i) Evidence of Systemic Infection Fever, chills, rigor, night sweat, loss of weight, arthralgia, arthritis, backache, muscle pain.  ii) Ev

How is striped pattern of the striated muscle cells formed, How is the stri...

How is the striped pattern of the striated muscle cells formed? The functional units of the muscle fibers are the sarcomeres. Within the sarcomeres blocks of myosin and actin

What do you understand by the term controlled vocabulary, Question 1: E...

Question 1: Enlist the applications of programming and encoding in Pharmaceutical industries Explanation on what is programming and encoding in Pharmaceutical industries

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