What is the physiology of micturition?
Urination or micturition primarily functions in the excretion of metabolic products and toxic wastes. The urinary tract also serves as a storage vessel of the waste filtered from the kidneys. Urine stored in the bladder is released from the bladder through the urethra upon a complex network of neurological function.
What are the steps of micturition?
Normal urination (micturition) occurs in the following stages:
- Urine is made in the kidneys.
- Urine is stored in the bladder.
- The sphincter muscles relax.
- The bladder muscle (detrusor) contracts.
- The bladder is emptied through the urethra and urine is removed from the body.
What is the definition micturition?
Definition of micturition : the act or process of micturating : urination As the bladder fills, spinal sensory afferents relay this information to a region in the pons that coordinates micturition.
What is micturition Slideshare?
MICTURITION Micturition is a process by which urinary bladder empties when it becomes filled Begins in 5th month of intrauterine life Remain as reflex up to 2-21/2 yrs of age. 1. Filling of Bladder – progressively till the tension of the wall rise above threshold 2.
What muscles are involved in micturition?
Muscles of Micturition: The Detrusor and Urethral Sphincters. Micturition, or urination, is the act of emptying the bladder. When the bladder is full of urine, stretch receptors in the bladder wall trigger the micturition reflex. The detrusor muscle that surrounds the bladder contracts.
What means micturition?
urination
Definition of micturition : the act or process of micturating : urination As the bladder fills, spinal sensory afferents relay this information to a region in the pons that coordinates micturition. — Susan Iversen et al.
Is micturition voluntary or involuntary?
voluntary control
In addition, micturition is under voluntary control and depends on learned behaviour that develops during maturation of the nervous system, whereas many other visceral functions are regulated involuntarily.
What is micturition SlideShare?