'Arm' in the Bible

where there was a man with a shrivelled arm. And they questioned Him, "Is it right to cure people on the Sabbath?" Their intention was to bring a charge against Him.

Then He said to the man, "Stretch out your arm." And he stretched it out, and it was restored quite sound like the other.

They do all their deeds to be seen by men; for they make their phylacteries (tefillin) wide [to make them more conspicuous] and make their tassels long.