A thick mane grows from the top of the head and down the back of the neck.

VOA: special.2010.06.22

It watched the back of his neck and hat for a minute, and then a hand came in and sat on his shoulder.

他从后面看了看,那个人的脖颈和帽子，然后将手伸进了车窗,搭在了他的肩上。

耶鲁公开课 - 1945年后的美国小说课程节选

These include the back of the neck and under the arms.

VOA: special.2010.07.27

Back of my neck getting dirty and gritty."

VOA: special.2009.06.22