Which Elements & Compounds are important in the Study of Human Anatomy?

I know that there are 92 naturally occurring elements in the world but which of them are important when it comes to understanding the composition, function and processes within the human body?

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  • Only 6 elements make up most of the human body constitution (i.e., the major chemical elements that you can find in the body tissues, muscles, bones and blood; the rest being trace elements)

    Those 6 elements are Carbon (C), Hydrogen (H2), Oxygen (O2), Nitrogen (N2), Phosphorus (P), Sulfur (S),

    The body is also composed of Calcium (Ca), Sodium (Na), Magnesium (Mg), Potassium (K). Other elements like Manganese, Iron, Copper, Zinc, Cobalt (part of vitamin B12) and Iodine exist as trace elements. In all, there are over 20 different elements in the body.

    Compounds are Water (H2O), Carbon Dioxide (CO2) and Glucose (C6H12O6)

    These are the main elements / compounds that can be found in the composition of the human body. A lot of the primary and secondary processes of human anatomy & physiology involve one or more of them.


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