Urinary Bladder

The length of a film should be directly related to the endurance of the human bladder - Alfred Hitchcock

Urinary Bladder

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Why The Bladder Is Number One!

When you think of your bladder, what do you imagine - a blob in your belly, just another organ competing for your attention? Friends, your beautiful bladder is so much more than a storage room for pee. Think about how often it speaks to you. Multiple times a day, from the moment we are born until we die.

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Articles of Interest

A Prosthetic Urinary Bladder—Why Not?

Both the distensible-volume model and the fixed-volume model of artificial urinary bladders warrant additional investigations. The vast array of available or proposed intestinal pouches and reservoirs is an indication that ideal urinary bladder replacement has not yet been demonstrated.

Bladder Anatomy

It can accommodate about 1000 ml of urine with an average of about 400-600 ml which varies from one to another. The outer layer of the bladder wall is formed of smooth involuntary muscle fibers (detrusor muscles), it contracts at urination to empty the bladder.

FYI: Can a Bladder Actually Burst?

Only under special circumstances. “I mean, it doesn’t just happen to any Joe Schmo walking down the street holding his...

Neurogenic Bladder

Millions of Americans have neurogenic bladder. Neurogenic bladder is the name given to a number of urinary conditions in people who lack bladder control due to a brain, spinal cord or nerve problem.

The evolution of the urinary bladder as a storage organ: scent trails and selective pressure of the first land animals in a computational simulation

The function of waste control in all living organisms is one of the vital importance. Almost universally, terrestrial tetrapods have a urinary bladder with a storage function. It is well documented that many marine and aerial species do not have an organ of such a function, or have one with very depressed storage functionality.

The Regenerating Bladder

For years, doctors have known that the urinary bladder, more than any other organ in the human body, possesses remarkable powers of regeneration, e.g., after removal of a diseased section, the bladder grows right over the incision to become intact. But until recently doctors did not know how to take complete advantage of this unique power.

Understanding Urinary Bladder Stones

Bladder stones are small, hard masses of minerals that develop in the bladder when the urine in the bladder becomes too concentrated. The concentrated urine causes minerals to crystallize and form these masses. Additionally, stagnant urine, or urine that remains in the bladder for long periods, also leads to the formation of crystals.

Urinary Bladder Contraction and Relaxation: Physiology and Pathophysiology

The urinary bladder has two important functions: storage of urine and emptying. Storage of urine occurs at low pressure, which implies that the bladder relaxes during the filling phase. Disturbances of the storage function may result in lower urinary tract symptoms (LUTS), such as urgency, frequency, and urge incontinence, the components of the overactive bladder syndrome.

Urinary Bladder Function

The bladder maintains continence, by delaying and controlling urination so that the average person urinates four to eight times per day with a typical bladder capacity, in the average adult of 400-500mls (approx.)

Urine Storage and Elimination: The Path of Urine Through the Body

As it reaches capacity, the process of micturition, or urination, begins. Involuntary muscle movements send signals to the nervous system, putting the decision to urinate under conscious control.

Urine Trouble: Tricky Bladder Mimics

Bladder scans are essential to diagnosis, management, and treatment of emergency medicine patients. FAST and RUSH exams1 have incorporated bladder ultrasound to rapidly assess for free fluid in a hemodynamically unstable patient. For infants presenting with fever, POCUS can be used to assess bladder volume to facilitate timing of catheterization. For patients presenting with low urine output, POCUS can help differentiate low urine volume versus obstructive uropathy. Knowing the relevant landmarks, typical bladder shape, and mimics can help accurately identify pathology.

Why do I need to pee more in the cold?

You’re taking a stroll through the park on a cold winter’s morning, when it hits you – the need to find a bathroom, and quick! This didn’t used to happen in summer. Is there something about winter that makes us need to pee more?

Resources

10 Urinary Bladder & UTI Facts

The adult human urinary bladder can hold up to two cups of urine. But it’s not a good idea to wait until your bladder is completely full before urinating. Holding or retaining urine regularly can lead to problems, such as weakened bladder muscles. This can cause urinary incontinence or difficulty urinating. Also, as urine stays in the bladder, it can result in a bladder or urinary tract infection (UTI). In rare cases, extreme urine retention can cause the bladder to rupture.

KenHub

The urinary bladder is an organ that serves to collect urine to be voided through urination after the urine is filtered through the kidneys (where the necessary ions are reabsorbed if physiologically needed through feedback mechanisms found throughout the body and in the nephrons of the kidneys, such as the macula densa).

Fertilitypedia

The urinary bladder is a reservoir for urine—this triangle-shaped, hollow organ is in the lower abdomen. Ligaments, attached to other organs and the pelvic bone, hold the bladder in place. The bladder’s wall relaxes and expands to hold urine and contacts and flattens to release the urine down the urethra. The average adult bladder can hold up to two cups, or 500 mL, of urine for two to five hours.

InnerBody

The urinary bladder is a hollow elastic organ that functions as the body’s urine storage tank. Urine produced by the kidneys flows through the ureters to the urinary bladder, where is it stored before passing into the urethra and exiting the body. The urinary bladder plays an important role in delaying and controlling urination so that the average person only has to urinate several times each day instead of constantly leaking small amounts of urine.

Radiopaedia

The urinary bladder (more commonly just called the bladder) is a distal part of the urinary tract and is an extraperitoneal structure located in the true pelvis. Its primary function is as a reservoir for urine.

Teachme Surgery

The bladder is a hollow organ with distensible walls. It has a folded internal lining (known as rugae), which allows it to accommodate up to 400-600ml of urine in healthy adults.

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