Simple definition radiocarbon dating

13-Nov-2015 21:24 by 4 Comments

Simple definition radiocarbon dating

Many skulls show signs of healing and indicate that the patient lived for years after the event, even sometimes having trephination performed again later in life and again surviving the experience.

It is the oldest surgical procedure for which we actually have archaeological evidence.At one site in France, burials included forty instances of trephination from around 6500 BCE; one third of the skulls found at the site.The percentage of occurrences there though is fairly high and percentages largely differ between sites and continents.It is from the human remains found at such sites that we know that the surgery had a fair survival rate.Trephination has been used to treat health problems associated with intracranial diseases, epileptic seizures, migraines and mental disorders by relieving pressure.There is also evidence it was used as a primitive form of emergency surgery to remove shattered pieces of bone from fractured skulls after receiving a head wound, and cleaning out the pools of blood that would form underneath the skull.

Evidence for trephination occurs from prehistoric times from the Neolithic period onwards.

The main pieces of archaeological evidence are in the forms of cave paintings and human remains; the skulls themselves from prehistoric times.

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Trephination (also known as trepanning or burr holing) is a surgical intervention where a hole is drilled, incised or scraped into the skull using simple surgical tools.

In drilling into the skull and removing a piece of the bone, the dura mater is exposed without damage to the underlying blood-vessels, meninges and brain.