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Micturition
Micturition is the process of urination, it is the passage of urine from the bladder through the urethra to the outside of the body. Micturition Process – Meaning Properties Problems and Management.
The muscles of the urinary bladder wall contract, and the bladder empties its contents through the urethra. The external urethral sphincter muscle relaxes and urine flows out of the body.
What is Micturition?
Micturition is the process of urination, the release of urine from the bladder through the urethra to the outside of the body.
Physical Properties of Micturition
The physical properties of micturition are the result of a number of factors, including the amount of urine in the bladder, the pressure of the surrounding muscles, and the opening of the urethra.
When the bladder is full, the pressure of the urine inside it begins to exceed the pressure of the surrounding muscles. This pressure differential causes the smooth muscles of the bladder wall to contract, pushing the urine out of the bladder and into the urethra.
The opening of the urethra is normally closed, except when urine is being expelled. This prevents urine from leaking out of the urethra. However, when the pressure of the urine in the bladder exceeds the pressure of the surrounding muscles, the urethral opening opens and the urine is expelled.
Chemical Composition of Urine
Urine is a waste product that is produced when the body breaks down food. It is composed of water, urea, salts, and other chemicals.
Micturition Process
The micturition process is the body’s physiological mechanism for eliminating urine from the bladder. The process begins with the sensation of the need to urinate, which is caused by the stretching of the bladder wall as it fills with urine. This sensation is relayed to the brain by the pelvic nerve, which is a branch of the sacral plexus.
The brain then sends a signal to the smooth muscles of the bladder wall, telling them to contract and push the urine out of the bladder. The urethra, which is the tube that carries urine from the bladder to the outside of the body, also relaxes so that the urine can flow freely. The entire process typically lasts less than a second.
Potential Problems of Micturition
There are a few potential problems that can occur with micturition. One is an inability to empty the bladder completely, which can lead to a build-up of urine and subsequently to infection. Another is urinary incontinence, which is the involuntary leakage of urine. This can be a result of damage to the bladder or to the nerves that control urination, or of a problem with the muscles that help to hold urine in.
Micturition Problem Management
There are a few different things that can be done to help manage a micturition problem. One is to try and identify and treat any underlying causes. If an infection is causing the problem, for example, it will need to be treated with antibiotics. If there is an obstruction in the urinary tract, surgery may be necessary to remove it.
In some cases, lifestyle changes can help to manage a micturition problem. If someone is having trouble emptying their bladder, for example, they may need to drink more fluids to help flush the urine out. Limiting caffeine and alcohol can also be helpful, as these can irritate the bladder and make micturition problems worse.
In some cases, medications may be needed to help manage a micturition problem. Drugs that relax the bladder muscles can be helpful for people who have trouble emptying their bladder. Other medications may be needed to treat an underlying infection or to help relieve urinary tract obstruction.
Key Points in Micturition
The following are the key points in micturition:
– Micturition is the process of urination.
– The bladder is a hollow organ located in the pelvis that stores urine.
– The urethra is a tube that carries urine from the bladder to the outside of the body.
– The muscles of the bladder wall contract to squeeze urine out of the bladder.
– The muscles of the urethral sphincter contract to keep urine from leaking out.
Micturition Process – Meaning Properties Problems and Management.