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Skulls have a very important role in human anatomy. Cranial bones (or also called cranium) include 22 independent bones that are generally subdivided into eight cranial bones and fourteen facial bones together with associated ribs and caudadum. The primary function of these bones is to provide adequate structure and protection to the rest of the body, particularly the face.
The most prominent part of the skull is the cranium, which is also called the braincase. It is made up of two different parts: the base or parietal part and the mandible. Together, they form the lower part of the neck. Skulls are found from the early stages of human evolution to the present, which is around Age XX or Menopause in humans. The fossil record supports the belief that early man might have used some form of rudimentary protection mechanism against dangerous creatures such as dinosaurs.
One of the most important parts of the skull is the mandible. It is made up of paired bones that are fused together and this joint can often break when arthritis sets in. This bone plays an important role in helping the rest of the body to properly position the bones, especially for the movement of the teeth. The mandible is made up of four main bones: the temporal bone (both temporal and parietal), the paranasal bone, the dental bone, and the uvula. The zygomatic bones in the right and left sides of your mandible help in the movement of the mandibles when they rotate. This enables you to bite, chew, and speak.
The remaining three bones form the major parts of the skull. The Temporomandibular Joints (TMJ) help move the jaw through a wide range of movements. The Temporomandibular Joints do not actually joints the jaw but rather allow it to move freely. The cranial sacral artery (SMA) and cranial artery at the base of the skull supply blood to and from the jaw. When the cranial artery is injured or killed, the temporomandibular joints are affected, which causes the locking of jaw movements.
The fifth and last bone is the tragus, which is a tube like structure that brings food and liquids to the brain. The nerves running along the tragus link the brain to various organs and the mouth. When a person has a stroke, the result is often a reduction in the ability to communicate with others. In addition, a person with a stroke may not be able to use the facial muscles or other functions of their hands and face. Because this connection between the tongue, palate and the brain is so important, when this structure is affected by a stroke it is often referred to as the tongue-brain connection.
The structure described above is all that is found inside the human skull. Outside the brain are several small structures that are vital to the proper functioning of our nervous system. Inside the skull are the vital internal structure, which consist of the cervical spine (neck), trachea and vocal chords, the maxilla (forearm), the hypochondrium (side chest) and the hyoid bone. All these structures together help us to move and talk. The human skull is indeed a very complicated piece of biological machinery.
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