head

turn your head shake your head (=move it from side to side, especially to show disagreement)

nod your head (=move it up and down, especially to show agreement)

 raise/lift your head (=look up) bow/bend/lower your head (=look downwards)

hang your head (=look downwards, especially because you are ashamed)

cock your head =hold your head at an angle)

 scratch your head somebody's head aches

somebody's head throbs (=it aches badly

from head to foot/toe =over your whole body

 bald head  = one with no hair on it 

the crown of your head (=the top of the back of your head) head injury