4,503
edits
Changes
Jump to navigation
Jump to search
Copulatory Behaviour - Anatomy & Physiology (view source)
Revision as of 09:33, 16 July 2008
, 09:33, 16 July 2008no edit summary
== Mounting ==
* Elevation of the front legs of the male to straddle the posterior region of the female.
* Learned behaviour
----
== Intromission ==
* Successful entrance of the penis into the [[Female_Reproductive_Tract_-The_Vagina/Vestibule_-_Anatomy_%26_Physiology|vagina]].
----
== Ejaculation ==
* The reflex expulsion of spermatozoa and seminal plasma from the male reproductive tract.
* Sensory stimulation, primarily to the glans penis causes a series of coordinated muscular contractions.
* Once intromission has been achieved, reflex impulses are initiated.
** Neural impulses derived mainly from sensory nerves in the '''glans penis'''.
* Upon threshold stimulation, impulses are transmitted from the glans peinis by the '''internal pudendal nerve''' to the lumbosacral region of the spinal cord.
* Sensory impulses result in firing of nerves in the '''spinal cord'''.
* Forcing of semen into the '''urethra''' by nerves in the '''hypogastric plexus''' innervating target muscles.
** '''Urethralis''' muscle
** '''Ischiocavernosus''' muscle
** '''Bulbospongiosus''' muscle
* '''Emission''' and ejaculation
** Emission is the movement of seminal fluids from the [[Reproductive_Tract_-Accessory_Sex_Glands_-_Anatomy_%26_Physiology|accessory sex glands]] into the pelvic urethra so that they can mix with spermatozoa.
** Emission occurs before and during ejaculation.
----
== Species Differences ==
<big><center>[[Reproductive System|'''BACK TO REPRODUCTIVE SYSTEM''']]</center></big>
<big><center>[[Reproductive System|'''BACK TO REPRODUCTIVE SYSTEM''']]</center></big>
|-
|-
|}
|}
== [[Reproductive Behaviour - Copulatory Behaviour Dog - Anatomy & Physiology|Dog]] ==
== [[Reproductive Behaviour - Copulatory Behaviour Dog - Anatomy & Physiology|Dog]] ==