Urogenital opening: Difference between revisions
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The '''urogenital opening''' is where [[waste]] products of the body and [[semen|reproductive fluids]] are expelled to the environment outside of the [[body cavity]]. In some organisms, including [[bird]]s and many [[fish]], discharge from the [[urological system|urological]], [[digestive system|digestive]], and [[reproductive system]]s empty into a common sac called the [[cloaca]]. In many organisms, these three systems are more separated. In the human female, separate |
The '''urogenital opening''' is where [[waste]] products of the body and [[semen|reproductive fluids]] are expelled to the environment outside of the [[body cavity]]. In some organisms, including [[bird]]s and many [[fish]], discharge from the [[urological system|urological]], [[digestive system|digestive]], and [[reproductive system]]s empty into a common sac called the [[cloaca]]. In many organisms, these three systems are more separated. In the human female, separate [[orifice]]s have evolved for all three, while in the male, a common "urogenital orifice" discharges both [[urine|urinary]] and reproductive fluids from the [[urethra]]. |
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Revision as of 00:25, 8 June 2009
The urogenital opening is where waste products of the body and reproductive fluids are expelled to the environment outside of the body cavity. In some organisms, including birds and many fish, discharge from the urological, digestive, and reproductive systems empty into a common sac called the cloaca. In many organisms, these three systems are more separated. In the human female, separate orifices have evolved for all three, while in the male, a common "urogenital orifice" discharges both urinary and reproductive fluids from the urethra.