It seems there may be some confusion regarding the anatomy of the gastrointestinal and urinary systems. To clarify:
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Large Intestine: The large intestine has one main opening at the end, which is the anus, where feces exits the body. It does not have three holes; the main sections include the cecum, colon, and rectum.
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Small Intestine: The small intestine connects to the stomach at one end and to the large intestine at the other. It does not connect to the bladder or kidneys.
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Urinary System: The bladder and kidneys are part of the urinary system and have their own openings. The urethra is the tube that carries urine from the bladder out of the body.
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Overall Structure: The digestive and urinary systems are separate. The anus is the only exit point for waste from the digestive system, while the urethra is the exit point for urine from the urinary system.
If you have more specific questions or need further clarification, feel free to ask!