micturition

(noun)

Also known as urination, this is the ejection of urine from the urinary bladder through the urethra to the outside of the body.

Related Terms

Examples of micturition in the following topics:

  • Micturition and the Micturition Reflex

    • Micturition is the ejection of urine from the urinary bladder through the urethra to the outside of the body.
    • The brain centers that regulate urination include the pontine micturition center, the periaqueductal gray, and the cerebral cortex, which cause both involuntary and voluntary control over micturition.
    • Micturition consists of two phases:
    • The muscles controlling micturition are controlled by the autonomic and somatic nervous systems, which open the two sphincters during the voiding phase of micturition.
    • The micturition reflex causes bladder contraction during voiding, through a neural pathway.

  • Autonomic Nervous System (ANS)

    • The ANS affects heart rate, digestion, respiratory rate, salivation, perspiration, pupillary dilation, micturition (urination), and sexual arousal.
    • The ANS affects heart rate, digestion, respiratory rate, salivation, perspiration, pupillary dilation, micturition (urination), and sexual arousal.

  • Comparing the Somatic and Autonomic Nervous Systems

    • The ANS affects heart rate, digestion, respiratory rate, salivation, perspiration, pupillary dilation, micturition (urination), and sexual arousal.

  • Autonomic Reflexes

    • The ANS affects heart rate, digestion, respiratory rate, salivation, perspiration, pupillary dilation, micturition (urination), and sexual arousal.

  • Levator Ani Injury and Urinary Stress Incontinence

    • Continence and micturition involve a balance between urethral closure and detrusor muscle activity.