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Penis - Anatomy & Physiology (view source)
Revision as of 12:45, 13 August 2009
, 12:45, 13 August 2009→Muscles associated with the penis
==Muscles associated with the penis==
==Muscles associated with the penis==
'''Bulbospongiosus'''
'''Bulbospongiosus'''
*A single muscle that covers the root and ventral surface of the penis as well as the Bulbourethral glands (link to glands page)
*A single muscle that covers the root and ventral surface of the penis as well as the bulbourethral glands (link to glands page)
*The function of this muscle is to empty the extrapelvic urethra of sperm in a similar way to the Urethralis muscle emptying the pelvic urethra.
*The function of this muscle is to empty the extrapelvic urethra of sperm in a similar way to the urethralis muscle emptying the pelvic urethra.
'''Ischiocavernosus Muscles'''
'''Ischiocavernosus Muscles'''
'''Retractor penis Muscles'''
'''Retractor penis Muscles'''
*Paired muscles oringinating on the caudal vertebrae and inserting on the ventrolateral surfaces of the penis.
*Paired muscles originating on the caudal vertebrae and inserting on the ventrolateral surfaces of the penis.
*Maintains the sigmoid flexure of the fibroelastic penis when the muscles are contracted.
*Maintains the sigmoid flexure of the fibroelastic penis when the muscles are contracted.
*When the muscles are relaxed the penis protrudes through the prepuce as the sigmoid flexure unbends.
*When the muscles are relaxed the penis protrudes through the prepuce as the sigmoid flexure unbends.