BIOL-242 Chapter Notes - Chapter 26: Renal Pelvis, Ureter, Urethra
9 Jun 2020
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Ureters // slender tubes that transport urine from the kidneys to the bladder. Each ureter begins as a continuation of the renal pelvis and descends behind the peritoneum to the base of the bladder. Urethral openings are slit-like and join the posterior wall of the bladder at an oblique angle. Shape helps prevent urine backflow toward the ureter and kidneys when the urinary bladder contracts. Most noticeable difference between male and female urogenital structures is the length of the urethra. Female urethra is only 4 inches while the male urethra is 7 inches (20 cm) Another difference: types of organs and their placement around the bladder. Urinary bladder // a collapsible, smooth muscular sac that stores urine until it is excreted. Located on the pelvic floor just below the pubic symphysis. The human bladder can hold up to 470 710 ml1(6 24 oz) Urge to urinate begins when the bladder contains about 300 ml (10 oz)
