The human urinary system
Chapter 1
The microscopic marvels of filtration
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Chapter 2
The plumbing and storage system
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Chapter 3
History and global medicine
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Chapter 4
Balance, hydration, and survival
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YOUR GOAL
Master of The human urinary system
Ch 2 · The plumbing and storage system
Fun Fact
Bladder capacity: A fully stretched human bladder can hold enough liquid to fill a standard 12-ounce beverage can.
Glossary
bladder (noun)
A membranous sac in humans and other animals, in which urine is collected for excretion. In humans, this muscular organ typically holds up to 500 milliliters of liquid before urination.
A membranous sac in humans and other animals, in which urine is collected for excretion. In humans, this muscular organ typically holds up to 500 milliliters of liquid before urination.
Quiz
What is the medical term for the reflex that coordinates the process of urination?
Quiz
Why are biological females generally more susceptible to urinary tract infections (UTIs)?
Quiz
Which sphincter muscle in the urinary system is under voluntary, conscious control?
Quiz
At what volume does an adult bladder typically begin sending signals to the brain that it needs emptying?
Quiz
What unique tissue lines the bladder walls, allowing them to stretch without tearing?