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Pre-copulatory Behaviour - Anatomy & Physiology (view source)
Revision as of 14:22, 10 July 2008
, 14:22, 10 July 2008→Flehmen Response
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** Bull,ram,stallion,some extent the boar.
** Bull,ram,stallion,some extent the boar.
* Male closely approaches the source of [[Reproductive_Behaviour_-_Attractivity_Behaviour_-_Anatomy_%26_Physiology|pheramones]] and will nuzzle the female genital region.
* Male closely approaches the source of [[Reproductive_Behaviour_-_Attractivity_Behaviour_-_Anatomy_%26_Physiology|pheramones]] and will nuzzle the female genital region.
+* Flehmen behaviour is characterized by:
+** Head elevation
+** Curling of the upper [[Lips_-_Anatomy_%26_Physiology|lip]].
+* Curling of the upper [[Lips_-_Anatomy_%26_Physiology|lip]] closes the '''nostrils''' and allows negative pressure to form in the '''nasopalatine duct'''.
* Vomeronasal organ is an '''accessory olfactory''' organ.
* Vomeronasal organ is an '''accessory olfactory''' organ.
* Connected to two small openings in the anterior roof of the mouth just behind the upper [[Lips_-_Anatomy_%26_Physiology|lip]].
* Connected to two small openings in the anterior roof of the mouth just behind the upper [[Lips_-_Anatomy_%26_Physiology|lip]].
* Fluid-borne,less volatile chemicals enter the vomeronasal organ through the [[Alimentary_-_Anatomy_%26_Physiology#Oral_Cavity|oral cavity]] by means of nasopalatine (incisive) ducts.
* Fluid-borne,less volatile chemicals enter the vomeronasal organ through the [[Alimentary_-_Anatomy_%26_Physiology#Oral_Cavity|oral cavity]] by means of nasopalatine (incisive) ducts.
+
+* Flehmen behaviour allows less volatile pheramones to be examined by sensory neurons in the '''vomeronasal organ'''.
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