Urogenital opening: Difference between revisions
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The '''urogenital opening''' is where |
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 lower organisms, including fish and birds, discharge from the urological, digestive, and reproductive systems empty into a common sac called the [[cloaca]]. In more advanced 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 . |
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Revision as of 15:26, 13 August 2004
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 lower organisms, including fish and birds, discharge from the urological, digestive, and reproductive systems empty into a common sac called the cloaca. In more advanced 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 .