Contact guidance - modes of cell movement, Biology

Assignment Help:

Contact guidance - Modes of Cell Movement

Besides chemical / ionic factors that regulate cell movement in developing embryos, physical factors as well appear to play a role in morphogenetic processes. A phenomenon called contact guidance effects cell movements in cultures. The cell is affected by the physical surface over which it passes and is directed towards its location. Weiss (1934) demonstrated that cells can detect discontinuities in their substratum and migrate after aligning themselves together such features as fibers.

They could even move along scratches at the bottom of petridish. In a recent study Harris (1980) displayed that fibroblasts cultured on silicone rubber or collagen change the shape of the substrate through the stress generated by them, and move along such changed substrate fields. Contact guidance is assumed to be the cause for the migration of mesenchymal cells inside the fish fin.


Related Discussions:- Contact guidance - modes of cell movement

What is flap tearing, What is Flap tearing Poor preoperative surgical p...

What is Flap tearing Poor preoperative surgical planning can result in flap of small size with inadequate exposure of the underlying bone. In an effort to increase the visibili

Which are nucleotides portions, Q. Which are nucleotides "portions" that to...

Q. Which are nucleotides "portions" that to bind in the formation of nucleic acids? What is meant by the 5' and 3' extremities of the nucleic acids? The phosphate group of one

Explain zoe-cements - materials for root end filling, Explain ZOE-Cements -...

Explain ZOE-Cements - materials for Root End Filling a. Two  most widely accepted are: IRM and Super EBA (S-EBA) b. Both exhibit similar and favorable  c. Clinically and

Explain about the absorbed moisture - water found in food, Explain about th...

Explain about the Absorbed Moisture - water found in food? It is the moisture that has passed through cell walls and entered the cytoplasm of the cell. It is this form of water

Optical defects of eye, Give an introduction for optical defects, of eye fo...

Give an introduction for optical defects, of eye for an assignment?

How are fruits formed, How are fruits formed? The fecundation in angios...

How are fruits formed? The fecundation in angiosperms triggers the release of hormones that act upon the ovaries. The ovary wall then makes into a fruit that having the seeds.

Oxidative decarboxylation of pyruvate, Oxidative decarboxylation of pyruvat...

Oxidative decarboxylation of pyruvate Oxidative decarboxylation ofpyruvate : This is an important step in tissues with high oxidative capacity such as cardiac muscle, whereby

Introduction to biodiversity, Biological diversity is the new buzzword, the...

Biological diversity is the new buzzword, the magic door to international funding and global travelling. We share the earth with million of other living beings. Just as we humans m

How to calculate the requirements for the calcium in body, How to Calculate...

How to Calculate the Requirements for the Calcium in Body? Requirements for calcium depend upon the rate at which calcium is incorporated into bone; they are therefore highest

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