WHERE IS YOUR OCCIPITAL BONE?

A system of muscles and tendons connects the head to the spinal column, the collarbone, and the shoulder blades. These tendons and muscles control the movement of the head. This bone forms the back of the skull. This bone rests on the spinal column and forms joint on which the head moves. Most of the weight of the head is in front of the occipital bone, and the head is held in an erect position by muscles in the neck.
When a person becomes sleepy, these muscles relax, and the head falls forward. Other large bones of the head include the maxilla, the mandible, and the parietal, frontal, sphenoid and temporal bones. Muscles in the head are important to the processes of chewing and swallowing. They are responsible for facial expressions, such as smiling or frowning.

Fact File

REPEATED ACTIVITY OF THE FACIAL MUSCLES, THE GRADUAL LOSS OF FAT PADS UNDER THE SKIN, AND THE LOSS OF SKIN ELASTICITY CAUSE WRINKLES TO FORM IN THE FACES OF OLDER PEOPLE.

What is occipital bone?

It is the trapezoid-shaped bone at the lower back of the skull. Most of the weight of the head is in front of the occipital bone. The skull bones separate facial structures from the brain. Its anatomy is quite complex to understand. There are five bones in the skull.

  • Ethmoid
  • Sphenoid
  • Occipital
  • Paired frontal
  • Paired temporal bone

In this article, we will know more about the occipital bone. Altogether, there are 26 bones in addition to the mandible. Except for the mandible, these bones are fused. The bone of their back and base of the skull is occipital bone.

It has a large hole in it, called the foramen magnum, which divides the passing of the cord. On both sides of the foramen, magnum would be the condyles, which are the articulation point of the skull and the atlas vertebra at the top of the column.

Like the frontal bone, it also varies in its own anatomy among earlier humans. Muscles of the throat and attach to the bone posterior to the foramen magnum, many of which leave discolouration or traces.

Those muscles external, at the very back of the neck, occasionally leave a line across the occipital bone. In many primates, this line is raised from the skull in the kind of a crest, known as the nuchal crest. In certain hominins, there is absolutely no elevated crest, but instead, a bar of bone also called a nuchal torus.

As a person gets older, these bone fuses with other bones of the cranium. Around the ages of 18 and 25, the sphenoid bone and occipital grow together. The occipital bone and parietal bones (top of the head) will fuse together later, between 26 and 40 years of age.

Related Topics