Difference between revisions of "Lizard Musculoskeletal System"
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Several families of lizard can voluntarily discard the tail when seized by a predator. The discarded wriggling tail is thought to distract the attention of the predator, enabling the lizard to escape. The animal is able to grow a new tail, although the regenerated tail is never as long or well formed as the original. | Several families of lizard can voluntarily discard the tail when seized by a predator. The discarded wriggling tail is thought to distract the attention of the predator, enabling the lizard to escape. The animal is able to grow a new tail, although the regenerated tail is never as long or well formed as the original. | ||
| − | Lizards that are capable of autotomy have a vertical fracture plane through the body and part of the neural arch of the tail vertebrae. This is a plate of cartilage or connective tissue that develops after ossification. Autotomy and regeneration occur in many iguanid species but not in many agamids, [[Monitor|monitors]] and [[Chameleon|chameleons]]. | + | Lizards that are capable of autotomy have a vertical fracture plane through the body and part of the neural arch of the tail vertebrae. This is a plate of cartilage or connective tissue that develops after ossification. Autotomy and regeneration occur in many [[Lizard Classification|iguanid]] species but not in many [[Lizard Classification|agamids]], [[Monitor|monitors]] and [[Chameleon|chameleons]]. |
==References== | ==References== | ||
Revision as of 20:41, 15 March 2010
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This article is still under construction. |
Like other reptiles, lizards have a single occiptal condyle. Ribs are present on all vertebrae except tail and cervical vertebrae.
Autotomy
Several families of lizard can voluntarily discard the tail when seized by a predator. The discarded wriggling tail is thought to distract the attention of the predator, enabling the lizard to escape. The animal is able to grow a new tail, although the regenerated tail is never as long or well formed as the original.
Lizards that are capable of autotomy have a vertical fracture plane through the body and part of the neural arch of the tail vertebrae. This is a plate of cartilage or connective tissue that develops after ossification. Autotomy and regeneration occur in many iguanid species but not in many agamids, monitors and chameleons.
References
- Mader, D.R. (2005). Reptile Medicine and Surgery. Saunders. pp. 1264. ISBN 072169327X