What is the mastoid bone made up of?

What is the mastoid bone made up of?

The mastoid bone is the back part of the temporal bone of the skull located just behind the inner ear. Mastoiditis is infection of the mastoid bone. The mastoid bone is made up of a honeycomb-like structure, which is full of mastoid air cells.

What are the three parts of the temporal bone?

The temporal bone is divided into several main parts/portions 1-3:

  • squamous part (temporal squama)
  • petrous part (petrous pyramid)
  • tympanic part.
  • mastoid part (usually considered a separate part but it is formed by both the squamous and petrous parts)

What part of the ear is located in the mastoid process of the temporal bone?

Mastoid Process Location The mastoid process is located on the underside of the mastoid portion of the temporal bone, behind the external auditory meatus. It can be found in front of and behind the ear canal and lateral to the styloid process.

What is mastoid process in anatomy?

The mastoid process is a conical prominence projecting from the undersurface of the mastoid portion of the temporal bone. It is located just behind the external acoustic meatus, and lateral to the styloid process.

Is the mastoid process a bone?

Mastoid process, the smooth pyramidal or cone-shaped bone projection at the base of the skull on each side of the head just below and behind the ear in humans.

Is mastoid part of temporal bone?

The mastoid part of the temporal bone is its posterior component. The inferior conical projection of the mastoid part is called the mastoid process.

Why does my mastoid bone hurt?

Mastoiditis is most often caused by a middle ear infection (acute otitis media). The infection may spread from the ear to the mastoid bone. The bone has a honeycomb-like structure that fills with infected material and may break down. The condition is most common in children.

What is the function of the mastoid bone?

The mastoid bone, which is full of these air cells, is part of the temporal bone of the skull. The mastoid air cells are thought to protect the delicate structures of the ear, regulate ear pressure and possibly protect the temporal bone during trauma.