A hollow membranous appendage on Utricularia roots, to trap insects.
The organ that stores urine.
The hollow, muscular organ situated in the lower abdomen and protected by the pelvis holds urine until it is excreted.
A musculomembranous sac serving to collect and store urine.
Any sac in the body, especially the sac where the urine collects before being passed out of the body.
A saclike structure that acts as a receptacle for secretions; term generally refers to the urinary bladder.
The sac that holds urine produced in the kidneys until it is expelled from the body. The bladder, one of the organs in the urinary tract, is located inside the pelvis. Two tubes called ureters lead from the kidneys into the back of the bladder. At the base of the bladder, a circular muscle forms a sphincter that can be opened to allow urine to flow into a tube called the urethra, which exits the body in the genital area. The walls of the bladder are muscular and can stretch or expand to hold as much as a pint of urine and then contract to expel it. In an infant, bladder function is entirely reflexive.
A sac-shaped organ that has a wall of smooth muscle and stores the urine produced by the kidneys. Urine passes into the bladder through the ureters; the release of urine from the bladder is controlled by a sphincter at its junction with the urethra.
Sacs formed of muscular and fibrous tissue and lined by a mucous membrane, which is united loosely to the muscular coat so the sac can expand and contract easily. Bladders are designed to contain some secretion or excretion, and communicate with the exterior by a narrow opening through which their contents can be discharged. In humans there are two: the gall-bladder and the urinary bladder.
A membranous sac or receptacle for a secretion, as the gallbladder; commonly used to designate the urinary bladder.
The muscular sac that stores urine until it is released from the body.
Situated in the lower region of the abdominal cavity, the bladder assumes the form of a diminutive balloon-like structure. Its primary function entails the collection and temporary retention of urine, which is subsequently expelled periodically through the act of urination.
The bladder is a hollow and muscular organ located in the lower abdomen. It serves as a reservoir for urine, the waste fluid produced by the kidneys. Situated within the pelvis, the bladder is protected by this bony structure. On average, an adult bladder has the capacity to hold approximately 0.5 litres of urine before the sensation to urinate is felt. The bladder plays a crucial role in the process of urination, where it contracts to expel urine through the urethra, allowing for the elimination of waste from the body. Maintaining proper bladder health and addressing any issues related to urination are essential for overall well-being. Consulting with healthcare professionals can provide further guidance on bladder care and management of urinary conditions.
The bladder is composed of muscular walls and lined with an inner layer. Urine is transported to the bladder from the kidneys through two tubes called ureters. Situated at the lowest point of the bladder is the bladder neck, which serves as the opening into the urethra, the tube responsible for the outflow of urine. The bladder neck is normally closed by a circular muscle known as the urethral sphincter. This muscle helps to maintain control over the release of urine, preventing leakage and allowing for voluntary urination when appropriate. The coordination of these structures and their proper functioning are essential for the normal storage and elimination of urine. Issues related to bladder function and urinary control can be evaluated and managed by healthcare professionals who specialize in urology.
The primary function of the bladder is to accumulate and retain urine until it can be eliminated from the body. The development of complete control over bladder function requires several years. In newborns, the act of emptying the bladder occurs as a completely involuntary reflex. As the bladder becomes filled with urine and expands beyond a specific threshold, nerve signals are transmitted to the spinal cord. Subsequently, these signals trigger the relaxation of the urethral sphincter and the contraction of the main bladder muscle, resulting in the expulsion of urine through the urethra.
The acquisition of complete bladder control in children occurs at different stages and ages. While many children achieve nighttime dryness by the age of five, there are those who require more time to reach this milestone.
Malfunctioning bladder function, which can result in issues like incontinence and urinary retention, can stem from a range of underlying factors.
The bladder serves as the storage area for urine produced by the kidneys and is located at the lower part of the abdomen. Typically, when about 8 to 10 ounces of urine collect, the bladder’s walls stretch, triggering the urge to urinate. In situations where there’s an obstruction to the urinary outlet, the bladder can stretch significantly, sometimes holding multiple pints, with 50 ounces not being uncommon. Such extreme distension can lead to intense, excruciating pain.