Fun facts and terminology about the major human body systems for general audiences.
40 cards · basic cards · AI-written, checked twice. Edit anything.
- How many bones does an adult human have?
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206- What is the name of the flexible tissue that connects bones?
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Cartilage- Which is the strongest bone in the human body?
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Femur (thighbone)- What does the skeletal system store besides support for the body?
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Minerals (calcium and phosphorus) and bone marrow- How many muscles does the human body have?
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Over 600- What molecule do muscles need to contract?
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ATP (adenosine triphosphate)- Which muscle is the primary one involved in chewing?
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Masseter- What percentage of body weight do muscles make up?
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About 40 percent- Into how many main parts is the nervous system divided?
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Two (central and peripheral)- What is the main organ of the central nervous system?
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Brain- What chemical signals transmit information between neurons?
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Neurotransmitters- At what speed do nerve impulses travel?
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About 120 meters per second- What gas do red blood cells transport?
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Oxygen- How many chambers does the human heart have?
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Four- What is the largest artery in the body?
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Aorta
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