The main function of head is to protect the brain. All the five sense organs send the sensation message to the brain like nose sends smell, nose performs breathing and gets air inside the body and throws the bad air out of the body, eyes send images, the ears send sounds and mouth send tastes.
Everyone has once in a life has suffered from the headache. Headache is the common disease condition of head. Have you ever suffered from the one sided headache along with nausea and vomiting. This is known as migraine.
Do you know that your head contains 22 bones and average weight of the head ranges between 3.5kg to 5.5kg. You are born with 300 bones and when you become adult you have only 206 bones, as bones of head get fused. There are approximately 60 muscles on the face and 14 bones are there in human face.