Who knows one hundred forty-seven?
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There are 147 unique body parts in the human body.
The mishna in Ahalos 1:8 lists that 101 have symmetrical counterparts and 46 are central.
Some are bones. Others are not, but all are referred to by the single term "evarim".
There are 147 chapters in the Book of Tehillim.
(According to a book of Aggadata quoted in the Yerushalmi (Shabbos 16:1), and from there in Tosafos to Pesachim 117a, and in Baal Haturim to Gen. 47:28.)
A great deal of ink has been spilled on how to reconcile this with the 150 chapters that we have. From various references in the Gemara, as well as present-day Yemenite practice, it seems that some single chapters that we have were originally split in two, and conversely, some that we have as two chapters were originally one.