Ames said:
Sorry, what you are saying makes absolutely NO sense. FACT: a child's skull is softer AND thinner than that of an adults, therefore making it easier than an adults, to fracture. What about this, do you not understand? Its pretty straightforward. Every single website that I have seen, or researched, has stated this FACT! And not only is it a fact...its pretty much common sense.
Again you are talking about a linear fracture caused by a fall -- not a comminuted fracture caused by a blow which is why I stated you were comparing apples to oranges since we are talking about the type of head injury JONBENET sustained. She did not fall from a bicycle or hitting a tub or sink which would cause a liinear fracture not a comminuted fracture. I've copied definitiions of the different fractures. An adult's skull has more of a chance of fracturing from a BLOW (NOT A FALL) than a child who is hit with the same force. Due to this fact, the blow to JonBenet's head had to be done with extreme force which you said would not take alot (reread your post - and that is what I addressed).
The skulls reaction to physical trauma: As stated earlier, the bones in the skull protect the brain from physical trauma by absorbing the shock from external sources. Depending on the amount of force applied to the skull, certain bone reactions will occur. The reaction of the childs skull can be dramatically different from the fully developed adult skull.
The childs skull is more elastic, and will accept a blow without fracturing, leaving an indented point of impact instead. The adult skull, on the other hand, might actually fracture when receiving a similar blow.
Linear fractures: This fracture has been regarded as the most common type of skull fracture (70%). Simply described, a linear fracture is usually a straight line fracture, generally radiating away from the point of impact. This is caused by the outbending effect upon the bone at the moment of impact. Once external force is applied to the bone, the exact point of impact will depress, which will cause the surrounding bone to bend outward. In most cases, the fracture will radiate toward weaker portions of the bone . It has also been determined that fractures can be placed into their proper sequence. When bones fractures, it behaves similarly to glass. Fractures in bone will stop traveling once they encounter a pre-existing fracture. As a result, the numerous fractures which may appear on a murder victims skull could be placed into their proper sequence of occurrence.
Depressed fracture: The depressed skull fracture is regarded as an extremely serious injury. These fractures consist of portions of the bone being pushed into the brain tissue, or in some instances, punched out. An assault with a hammer may leave a depressed fracture, with an opening in the skull consistent with the diameter of the hammer. Larger depressive fractures can be obtained by using heavy larger items, such as baseball bats, stones, or similar items.
Comminuted fractures: The comminuted fracture is basically as shattering of the bone, much like a cracked eggshell. In fact, these fractures are commonly called eggshell fractures for this reason. They are received in the same manner as the depressed fracture. For example, repeated blows to a victims head with a hammer would produce a shattered skull. These fractures also cause severe injury to the brain due to the broken pieces of bone being pushed into the cranium.