Question

urine has, and water filtered from blood.true or false: people need both kidneys to live.each adult kidney is about how large?each kidney has an outer layer called what?the medulla of the kidney has fan - shaped structures calledwhich drain into cup - shaped tubes called.urine travels out of the kidneys through the.urine is stored in the, a muscular sac in the lower belly.urine exits the body through the.

Explanation:

• Urine composition: Urea is a waste product from protein metabolism, salts are electrolytes like sodium chloride, and water is filtered from blood.
• Kidney necessity: One healthy kidney can perform the functions of filtering blood, removing waste, and maintaining fluid balance.
• Kidney size: Adult kidneys are approximately the size of a fist.
• Kidney structure (outer layer): The cortex is the outer layer which contains nephrons (the functional units of the kidney).
• Medulla structures: Pyramids are fan - shaped in the medulla, and they drain into calyces (cup - shaped tubes).
• Urine transport from kidney: Ureters are the tubes that carry urine from the kidneys to the bladder.
• Urine storage: The bladder is a muscular sac that stores urine until it is excreted.
• Urine exit: The urethra is the tube through which urine exits the body.

Answer:

• Urea, salts
• False
• About the size of a fist
• Cortex
• Pyramids, calyces
• Ureters
• Bladder
• Urethra