List of Threes in Anatomy

The structure of the human body is organized into groups of three with remarkable frequency. I have listed several examples of this tendency by region. This list does not include structures contributing to form the many “triangles” in the body. If you know of any more, please let me know.

John A. McNulty, Ph.D.

Historically, this was the first hyperlink to the Book of Threes in 1996 thanks to John McNulty . . .

Michael Eck – Author The Book of Threes

To visit John McNulty’s amazing list, click here.

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