Guess if these incredible facts about the human body are true or false

incredible facts about the human body

Guess if these incredible facts about the human body are true or false. The human brain produces enough electricity to power a small light bulb. Is this true or false? We’ll see if your answer is correct at the end of the challenge.

Guess if these incredible facts about the human body are true or false


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  • Question of

    The human brain produces enough electricity to power a small light bulb.

    • True
    • False
  • Question of

    Blood cells are produced by the liver.

    • True.
    • False, they’re produced by the bone marrow.
  • Question of

    Memory is found in the part of the brain called the “cerebellum”.

    • True
    • False, it’s found in the cerebral cortex.
  • Question of

    There are 48 muscles that control the movement of an eye.

    • True
    • False, there are only 6 muscles.
  • Question of

    The beard grows approximately 1.5m (5 feet) long over a lifetime.

    • True
    • False, they can grow to almost 30 feet long in a man’s lifetime.
  • Question of

    Synapses allow the transmission of chemical signals from one neuron to another.

    • True
    • False
  • Question of

    Most adults have mites living on their faces.

    • True
    • False
  • Question of

    A heart attack can NOT be caused by blocked coronary circulation.

    • True
    • False
  • Question of

    Blood accounts for about 2% of body weight.

    • True
    • False, it represents 7 to 8%.
  • Question of

    Vitamin D is one of the vitamins the body produces.

    • True
    • False
  • Question of

    The tendons keep the joints stable.

    • True
    • False, the tendons transfer the force of the muscle contractions to the bones.
  • Question of

    The eyes are always the same size from birth to death.

    • True
    • False
  • Question of

    The skull is made up of 7 separate bones.

    • True
    • False, it’s made up of 22 separate bones.
  • Question of

    There are 23 pairs of chromosomes in the human genome.

    • True
    • False
  • Question of

    Both lungs are the same size.

    • True
    • False, the left one is slightly smaller.

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Tamara Dominas

Written by Tamara Dominas

My name is Tamara. I define myself as a bookworm and that's where I spend most of my time. I'm a chemist, with a developing passion for languages. I speak three languages and I'm already going for the fourth. I currently live in Rome, Italy, and I declare myself profoundly in love with this city. You can write to me: send me an email

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