which type of epithelial tissue is found in the urinary bladder renal pelvis and ureters?
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Transitional epithelium lines the renal pelvis, ureters and urinary bladder.
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The new GU Interdisciplinary Clinic treats genitourinary cancers formed along the genitourinary tract – including the kidneys, the bladder, the ureters (tubes that collect urine from kidneys and drain to bladder), the urethra (tube that drains urine from bladder out), the testicles and the prostate.
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The female urogenital tract consists of all the organs involved in reproduction and the formation and release of urine. It includes the kidneys, ureters, bladder, urethra, and the organs of reproduction – uterus, ovaries, fallopian tubes and vagina.
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The ureter is a tube that carries urine from the kidney to the urinary bladder. There are two ureters, one attached to each kidney. The upper half of the ureter is located in the abdomen and the lower half is located in the pelvic area.
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Epithelial tissue is scutoid shaped, tightly packed and form a continuous sheet. It has almost no intercellular spaces. All epithelia is usually separated from underlying tissues by an extracellular fibrous basement membrane. The lining of the mouth, lung alveoli and kidney tubules are all made of epithelial tissue.
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Normal cell components present in urine. (A) Basal urothelial cells have moderate dense cytoplasm with well-defined borders.
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Another kind of stratified epithelium is transitional epithelium, so-called because of the gradual changes in the shapes of the apical cells as the bladder fills with urine. It is found only in the urinary system, specifically the ureters and urinary bladder.
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The detrusor muscle is located within the walls of the bladder and is composed of smooth muscle fibers that are longitudinal and circular.
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The urethra is a tube extending from the urinary bladder, through the floor of the pelvic cavity (“urogenital diaphragm”), and then through the length of the penis to its external opening (the urethral orifice). Thus, the urethra serves as a passageway for urine.
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Renal tubular epithelial cells (RTEC) is a layer of cells in the outer layer of the renal tubule, which plays a key role in the renal function. Renal tubular epithelial cells may be able to play a role in the absorption of glucose, amino acids, and other substances in the urine of the primary urine.
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In women, the bladder is located in front of the vagina and below the uterus. In men, the bladder sits in front of the rectum and above the prostate gland. The wall of the bladder contains folds called rugae, and a layer of smooth muscle called the detrusor muscle.
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Option “B” is correct i.e. convoluted tubule. Among the given options, the convoluted tubule is not a part of the renal pelvis. The medulla is separated into limited conical masses named medullary pyramids that are projecting into the calyces.
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Urine is made in the kidneys and travels down two tubes called ureters to the bladder. The bladder stores urine, allowing urination to be infrequent and controlled. The bladder is lined by layers of muscle tissue that stretch to hold urine.
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Introduction. The ureters are bilateral thin (3 to 4 mm) tubular structures that connect the kidneys to the urinary bladder, transporting urine from the renal pelvis into the bladder.
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The urinary tract includes the bladder, kidneys, the tubes that connect the kidneys to the bladder (ureters), and the urethra. In chronic prostatitis, signs of infection in the prostate gland cannot usually be found. In these cases, the cause of symptoms is not clear.
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The epithelial lining of the male urethra changes from transitional epithelium at the bladder end to pseudostratified epithelium through prostatic, membranous and most of penile urethra, eventually changing to nonkeratinizing stratified squamous epithelium distally.
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The alveoli of lungs where gases diffuse, segments of kidney tubules, and the lining of capillaries are also made of simple squamous epithelial tissue. The mesothelium is a simple squamous epithelium that forms the surface layer of the serous membrane that lines body cavities and internal organs.