The Head (mori)
The bone structure of the head is composed of the skull which protects the contents of the head. The skull itself is composed of 28 bones, eight of which protect and house the brain.
The eyes are set deep in their sockets and thus they are well protected against hand or foot blows, except when attacked by fingers or toes, both of which can cause very serious damage indeed.
The nose is composed of a boney part (the bridge of the nose) and the cartilage (the tip of the nose). A blow to the nose can result in a fracture (break) and/or troublesome bleeding. Neither of these is usually serious.
The mouth is formed by the maxilla into which are set the upper teeth, and the mandible (the jaw) into which is set the lower teeth. The floor of the mouth is filled by the tongue. The lips form the outside covering of the teeth. The upper lip has a groove in the midline called the philtrum (it is of no significance, except as a guiding point). Injuries to the mouth commonly result in broken teeth, bitten lips or tongue and uncommonly, broken bones.
Ears can be divided into the outer and inner portions. The outer portion we can see, the inner we cannot. Injury to the outer portion commonly results in swelling or bleeding. This is rarely serious. However, a blow over the ear canal, which leads to the inner portion of the ear, may result in the rupture of the tympanic membrane and thus cause severe pain and temporary deafness.
It is most important to realize that a blow to any part of the head, if severe enough, will result in unconsciousness. This must be seen as a serious injury always because even though this may only be a minor concussion, it may also be a sign of impending death.