431Which organ is generally considered the largest internal organ in the human body?
432Which pair of organs in the human body is primarily responsible for filtering blood and producing urine?
433How many kidneys does a normal healthy human body typically have?
434What is the basic structural and functional filtering unit found within each kidney called?
435Which nitrogen-containing waste product is primarily filtered out of the blood and excreted by the kidneys?
436Which organ in the human body is mainly responsible for storing urine before it is expelled?
437The human central nervous system is primarily made up of the brain and which other organ?
438Which is generally considered the largest and most prominent part of the human brain?
439Which part of the human brain primarily controls balance and coordination of movement?
440Which part of the brainstem primarily regulates involuntary functions such as heartbeat and breathing?
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