腕の

of the arm; on the arm

→ 腕
phrase Uncommon #11,030
of the arm; on the arm Refers to a person’s arm, from the shoulder onward; の links 腕 to the following noun.
JA: 腕の傷は跡を残した。
EN: The wound on the arm left a scar.

ではその腕のアザは?

Then what about that bruise on your arm?

— Carandiru (2003)

腕の調子は?

How is your arm feeling?

— Бриллиантовая рука (1969)

あんたが叩いた腕のとこ、超痛いんだけど。

My arm really hurts where you hit it.

腕の位置は?

Where should the arms be positioned?

— 燃ゆる女の肖像 (2019)