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Snake and Lizard Reproduction - Anatomy & Physiology (view source)
Revision as of 14:07, 5 July 2012
, 14:07, 5 July 2012→Copulation
== Lizards (Squamata) ==
=== Male ===
<big><center>[[Exotics_-_Reptile_Reproductive_Anatomy_and_Physiology_-_Anatomy_%26_Physiology|'''BACK TO REPTILE REPRODUCTIVE ANATOMY & PHYSIOLOGY''']]</center></big>
[[Image:Reproductive Tract Male Lizard.jpg|thumb|right|150px|<p>Anatomy of the Male Lizard</p><sup> © L.Wilkie 2008</sup>]]
[[Image:Lateral Male Chameleon.jpg|thumb|right|150px|<p>Lateral View of the Male Chameleon</p><sup> © L.Wilkie 2008</sup>]]
==== Testes ====
= Lizards (Squamata) =
== Male ==
* Located cranial to the kidneys.
* Located cranial to the kidneys.
** Has its own testicular blood vessels.
** Has its own testicular blood vessels.
=== Phallus ===
==== Phallus ====
* Paired hemipenes
* Paired hemipenes
== Female ==
== Female ==
[[Image:Reproductive Tract Female Lizard.jpg|thumb|right|150px|<p>Anatomy of the Female Lizard</p><sup> © L.Wilkie 2008</sup>]]
[[Image:Ventral Female Lizard.jpg|thumb|right|150px|<p>Ventral View of the Female Lizard</p><sup> © L.Wilkie 2008</sup>]]
=== Ovary ===
=== Ovary ===
== Male ==
== Male ==
[[Image:Snake Anatomy male.png|thumb|right|150px|<p>Anatomy of the Male Snake: (1. Oesophagus 2. Trachea 3. Tracheal lungs 4. Rudimentary left lung 5. Right lung 6. Heart 7. Liver 8. Stomach 9. Air sac 10. Gallbladder 11. Pancreas 12. Spleen 13. Intestine 14. Testes 15. Kidneys )
</p><sup> ©RVC 2008</sup>]]
=== Testes ===
=== Testes ===
=== Maternal Behaviour ===
=== Maternal Behaviour ===
The Indian Python is the only reptile to exibit maternal behaviour. This can be achieved owing to her large body size.
The '''Indian Python''' is the only reptile to exibit maternal behaviour. This can be achieved owing to her large body size.
* Generate a 7ºC increase in heat by spasmodic contractions of muscles as they coil around the eggs.
* Generate a 7ºC increase in heat by spasmodic contractions of muscles as they coil around the eggs.
* Coil tightly around the egg mass to prevent heat loss from the eggs.
* Coil tightly around the egg mass to prevent heat loss from the eggs.
== Copulation ==
== Copulation ==
* Male initates courtship by moving his body over the female and rubbing his tail against her.
* If female is receptive, she dilates her cloaca and raises her tail.
* Copulation lasts 2-20 hours.
* During copulation one hemipene is evaginated and inserted into the female cloaca.
* Hemipene has spines and ridges that enable it to remain in the cloaca for a long period of time.
* Hemipene is withdrawn at the end of copulation by contraction of the retractor muscle.
* During multiple mating, the male can use the left and right hemipene alternately.
[[Category:Exotic Reproduction]]
[[Category:Bullet Points]]