How many muscles are in the human body?
There are approximately 650 muscles in the human body; 30 muscles are in the human hand alone. There are three different types of muscles: skeletal (facilitates movement in the body), smooth muscle (an involuntary muscle that enables contraction), and cardiac muscle (controls the heartbeat).
What is the largest organ in the human body?
Surprisingly, in human biology the skin is a type of organ. This makes skin the largest organ in the human body!
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