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  2. Physiology

    Most animals have excretory systems for elimination of soluble toxic wastes. In humans, soluble wastes are … See more

    Urine - Wikipedia

    • Urine is a liquid by-product of metabolism in humans and in many other animals. In placental mammals, urine flows from the kidneys through the ureters to the urinary bladder and is ejected from the penis or vulva through the urethra during urination. In other vertebrates, urine is excreted through the cloaca. Urine contains water-soluble by-products of cellular me… See more

    How Urine is Produced in the Body
    How Urine is Produced in the Body
    Urine is a liquid waste product of the body that contains dissolved substances such as salts, toxins, and hormones. It is produced by the kidneys, which are bean-shaped organs located in the lower back.
    Characteristics

    Average urine production in adult humans is around 1.4 L (0.31 imp gal; 0.37 US gal) of urine per person per day with a normal range of 0.6 to 2.6 L (0.13 to 0.57 imp gal; 0.16 to 0.69 US gal) per person per day, produced i… See more

    Examination for medical purposes

    Many physicians in ancient history resorted to the inspection and examination of the urine of their patients. Hermogenes wrote about the color and other attributes of urine as indicators of certain diseases. Abdul Malik Ibn H… See more

    Uses

    Urine contains proteins and other substances that are useful for medical therapy and are ingredients in many prescription drugs (e.g., Ureacin, Urecholine, Urowave). Urine from postmenopausal women is ri… See more

    History

    The fermentation of urine by bacteria produces a solution of ammonia; hence fermented urine was used in Classical Antiquity to wash cloth and clothing, to remove hair from hides in preparation for tanning, to … See more

    Language

    The English word urine (/ˈjuːrɪn/, /ˈjɜːrɪn/) comes from the Latin urina (-ae, f.), which is cognate with ancient words in various Indo-European languages that concern water, liquid, diving, rain, and urination (for example S… See more

    See also

    Drinking urine (urophagia)
    Ureotelic
    Urine therapy
    Urolagnia, an attraction to urine See more

     
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