El recto (del latín rectum) es el último tramo del tubo digestivo, situado inmediatamente después del colon sigmoide. El recto recibe los materiales de desecho que quedan después de todo el proceso de la digestión de los alimentos, constituyendo las heces. El recto es la parte final del intestino grueso y tiene una longitud de 15 cm, y de aquí las heces fecales salen del cuerpo a través del ano.

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The rectum (from the Latin rectum intestinum, meaning straight intestine) is the final straight portion of the large intestine in some mammals, and the gut in others. The human rectum is about 12 centimetres (4.7 in) long, and begins at the rectosigmoid junction (the end of the sigmoid colon), at the level of the third sacral vertebra or the sacral promontory depending upon what definition is used. Its caliber is similar to that of the sigmoid colon at its commencement, but it is dilated near its termination, forming the rectal ampulla. It terminates at the level of the anorectal ring (the level of the puborectalis sling) or the dentate line, again depending upon which definition is used. In humans, the rectum is followed by the anal canal, before the gastrointestinal tract terminates at the anal verge.

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