Wrist
noun
Your hand's neck is your wrist!
This word uses the kun'yomi readings from both kanji, probably because it includes body parts. You know them both already, so now you know this too!
手首にブレスレットをしています。
I have a bracelet on my wrist.
これは、手首のストレッチです。
This is a wrist stretch.
私の主人は手首にタトゥーが有ります。
My husband has a tattoo on his wrist.