Amphibians - regeneration in vertebrates, Biology

Assignment Help:

Amphibians - Regeneration in Vertebrates

Newts and salamander show remarkable regenerative ability in larval as well as adult stages. In larval stages except for limbs and tail, external gills, upper and lower jaws, parts of intestine, lens and retina can regenerate. Tadpoles of anuran amphibians (frogs and toads) also possess the capability to regenerate limbs and tail.

1604_Amphibians.png

Figure: Limb regenerative ability of urodele (salamander) and anuran (frog) after amputation

In the anuran tadpoles the ability to regenerate amputated limbs is slowly lost proximod-distally along the long axis of the limbs as they grow and approach metamorphosis. Along with few exceptions such as Xenopus, adult anurans are unable to regenerate limbs at all. Figure displays the difference in the regenerative ability of urodele (salamander) and anurans (frog) in regenerating an amputated limb.


Related Discussions:- Amphibians - regeneration in vertebrates

Describe the clinical evaluation mvp murmur in details, Describe the Clinic...

Describe the Clinical Evaluation MVP Murmur in details? Characteristic: Mid systolic click followed by a late systolic murmur which usually extends to A2. The click may be abse

What is a vesicle, What is a vesicle? A vesicle is a relatively minute ...

What is a vesicle? A vesicle is a relatively minute intracellular, membrane-enclosed sac that keeps or transports substances

Obturator - ovule, Obturator - Ovule An obturator is an outgrowth of t...

Obturator - Ovule An obturator is an outgrowth of the placenta or funicle or integument or style near the micropyle. It is presumed to guide the pollen tube to the micropyle.

How to calculate fractional shbrtening, Q. How to calculate Fractional Shbr...

Q. How to calculate Fractional Shbrtening? With the cursor- beam cutting the left ventricle just beyond the tips of mitral valve in an adequate parasternal long axis view,

How different is the amphibian heart from the fish heart, Q How different i...

Q How different is the amphibian heart from the fish heart? The fish heart has only two chambers, a ventricle and an atrium, and the blood that comes to it is purely venous.

Internal mammary artery-long term patency, Internal Mammary Artery (1MA) : ...

Internal Mammary Artery (1MA) :  This is an excellent graft. When left internal mammary artery (LIMA) is anastomosed to LAD, which has more than 70 per cent block, patency at

Nutrition - heterotrophic nutrition, HETEROTROPHI C NUTRITION Animals ...

HETEROTROPHI C NUTRITION Animals derive organic food materials by consuming products of plants - Heterotrophic nutrition. T ype s of Heterotrophic Nutrition (i ) H

What are the digestive functions of the liver, What are the digestive funct...

What are the digestive functions of the liver? Besides making bile for release in the duodenum, the liver has other digestive functions. The venous network that absorbs nutr

Hypothalamus and pituitary, Hypothalamus and Pituitary The most obviou...

Hypothalamus and Pituitary The most obvious neuroendocrine link is between the hypothalamus and pituitary. The hypothalamus is a part of the brain which is connected to the pi

What are some examples of biological activities, What are some examples of ...

What are some examples of biological activities in which osmosis plays an important role? Hemolysis (destruction of red blood cells) by entrance of water, the hydric regulation

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