Difference between revisions of "Copulatory Behaviour - Anatomy & Physiology"

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== ::[[Reproductive Behaviour - Copulatory Behaviour Dog - Anatomy & Physiology|Dog]] ==
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== [[Reproductive Behaviour - Copulatory Behaviour Dog - Anatomy & Physiology|Dog]] ==
  
 
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== ::[[Reproductive Behaviour - Copulatory Behaviour Cat - Anatomy & Physiology|Cat]] ==
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== [[Reproductive Behaviour - Copulatory Behaviour Cat - Anatomy & Physiology|Cat]] ==

Revision as of 10:24, 15 July 2008

BACK TO REPRODUCTIVE SYSTEM
BACK TO REPRODUCTIVE BEHAVIOUR


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 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 accessory sex glands into the pelvic urethra so that they can mix with spermatozoa.
    • Emission occurs before and during ejaculation.

Dog


Cat