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urination

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Also known as weeing, emiction, taking a piss, urinating, peeing, GO:0060073, piss, tinkling

Urination is the release of urine from the bladder through the urethra in placental mammals, or through the cloaca in other vertebrates. It is the urinary system's form of excretion. It is also known medically as micturition, voiding, uresis, or, rarely, emiction, and known colloquially by various names including peeing, weeing, pissing, and euphemistically number one. The process of urination is under voluntary control in healthy humans and other animals, but may occur as a reflex in infants, some elderly individuals, and those with neurological injury. It is normal for adult humans to urinat

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Urination is the body's process of releasing urine from the bladder through the urethra, which is how the urinary system gets rid of waste products. This process is normally under voluntary control in healthy adults, though it can occur involuntarily in infants, elderly individuals, and those with certain neurological conditions.

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Urination
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Article

35 sections
Contents
  • Anatomy and physiology
  • Anatomy of the bladder and outlet
  • Physiology
  • Storage phase
  • Voiding phase
  • Voluntary control
  • Experience of urination
  • Disorders
  • Clinical conditions
  • Experimentally induced disorders
  • Deafferentation
  • Denervation
  • Spinal cord injury
  • Techniques
  • Male urination
  • Female urination
  • Babies and children
  • Fetal urination
  • Alternative urination tools
  • Social and cultural aspects
  • Art
  • Toilet training
  • Facilities
  • Urination without facilities
  • Talking about urination
  • Use in language
  • Urination and sexual activity
  • In humans
  • In other animals
  • Electric shock injuries and deaths
  • Other species
  • See also
  • References
  • Further reading
  • External links

Urination is the release of urine from the bladder through the urethra in placental mammals, or through the cloaca in other vertebrates. It is the urinary system's form of excretion. It is also known medically as micturition, voiding, uresis, or, rarely, emiction, and known colloquially by various names including peeing, weeing, pissing, and euphemistically number one. The process of urination is under voluntary control in healthy humans and other animals, but may occur as a reflex in infants, some elderly individuals, and those with neurological injury. It is normal for adult humans to urinate up to seven times during the day.

In some animals, in addition to expelling waste material, urination can mark territory or express submissiveness. Physiologically, urination involves coordination between the central, autonomic, and somatic nervous systems. Brain centres that regulate urination include the pontine micturition center, periaqueductal gray, and the cerebral cortex.

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