Table of Contents
- 1 What is the physiology of micturition?
- 2 What is micturition and explain the physiology of micturition?
- 3 What do you understand by micturition reflex explain?
- 4 Which of the following describes the term micturition?
- 5 Where does the process of micturition take place?
- 6 How is micturition regulated by the nervous system?
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.
How is micturition stimulated?
The pontine micturition center (PMC) in the brainstem is activated via afferent signals from the urinary bladder as it is filling. This center sends inhibitory impulses to the spinal reflex arcs to enable bladder voiding.
What is micturition and explain the physiology of micturition?
Micturition or urination is the process of expelling urine from the bladder. The kidneys filter the urine and it is transported to the urinary bladder via the ureters where it is stored till its expulsion. The process of micturition is regulated by the nervous system and the muscles of the bladder and urethra.
What is meant by micturition and describe it?
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 do you understand by micturition reflex explain?
micturition reflex. contraction of the walls of the bladder and relaxation of the trigone and urethral sphincter in response to a rise in pressure within the bladder; the reflex can be voluntarily inhibited and the inhibition readily abolished to control micturition.
What initiates the micturition reflex quizlet?
What initiates the micturition reflex? Stretch receptors in the wall of the urinary bladder signal the sacral region of the spinal cord.
Which of the following describes the term micturition?
the act of passing urine; urination.
Why is micturition a reflex process?
Micturition consists of a storage phase and a voiding phase. Stretch receptors in the bladder increase their firing rate as the bladder becomes more full. This causes the micturition reflex, and increases urinary urge, and can even cause involuntary urination.
Where does the process of micturition take place?
The urinary bladder is under the control of the central nervous system (CNS). Thus urinary bladder will store the urine until the CNS signals it. The process of micturition initiates when the brain signals urinary bladder to contract.
What does micturition mean in relation to urination?
After the kidneys have done their job, now it is the bladder’s job to store the urine and empty fully at the time of urination, which is also known as micturition. Let us learn more. Micturition or urination is the process of expelling urine from the bladder.
How is micturition regulated by the nervous system?
The process of micturition is regulated by the nervous system and the muscles of the bladder and urethra. The urinary bladder can store around 350-400ml of urine before it expels it out. The urinary bladder has two distinct stages or phases:
Which is a major diagnostic element of the micturition process?
Thus it is a major clinical diagnostic element. Micturition process consists of two phases: The urinary bladder is a balloon-shaped, hollow, muscular, organ that acts as the storage organ for urine. The urinary bladder in a healthy urinary system can store up to 16 ounces of urine for 2 to 5 hours easily.