What is mastoid in anatomy?

Anatomical terms of bone The mastoid part of the temporal bone is the posterior (back) part of the temporal bone, one of the bones of the skull. Its rough surface gives attachment to various muscles (via tendons) and it has openings for blood vessels. From its borders, the mastoid part articulates with two other bones.

What is mastoid process?

The mastoid process is located in the posterior portion of the temporal bone. It is one of the two projections situated behind the ear. The mastoid process provides an attachment for certain muscles of the neck.

Where is the mastoid bone located?

The mastoid is located just behind the ear. Mastoiditis is an infection of the bony air cells in the mastoid bone, located just behind the ear.

What is the mastoid process of the skull?

The mastoid process is a pyramidal bony projection from the posterior section of the temporal bone. The superior border of the mastoid portion of the temporal bone articulates with the parietal bone.

What is the function of mastoid?

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.

What causes mastoiditis?

Mastoiditis can develop if the mastoid cells become infected or inflamed, often following a persistent middle ear infection (otitis media). Cholesteatoma can also cause mastoiditis. This is an abnormal collection of skin cells inside the ear which may prevent the ear draining properly, leading to infection.

What are the symptoms of a mastoid infection?

The symptoms of mastoiditis typically include:

• redness, tenderness and pain behind the ear.
• swelling behind the ear that can cause it to stick out.
• discharge from the ear.
• a high temperature, irritability and tiredness.
• headache.
• hearing loss in the affected ear.

Is mastoiditis very painful?

Share on Pinterest A person with mastoiditis will often have intense throbbing pain in or around the ear. Mastoiditis can begin after symptoms of an ear infection seem to have cleared up. It may also appear as a progressively worsening ear infection.

How is the transverse sinus separated from the mastoid?

The groove for the transverse sinus is separated from the innermost of the mastoid cells by a very thin lamina of bone, and even this may be partly deficient. The superior border of the mastoid part is broad and serrated, for articulation with the mastoid angle of the parietal.

How is the mastoid part of the temporal bone fused?

Mastoid part of temporal bone articulates with the following bones: 1 the superior border articulates with the mastoid angle of the parietal bone 2 the posterior border articulates with the inferior border of the occipital bone 3 anteriorly it is fused with the descending process of the squamous temporal bone inferior to the supramastoid crest

Where is the superior border of the mastoid bone?

The superior border of the mastoid portion of the temporal bone articulates with the parietal bone. It might be a good idea to learn the full anatomy of the skull before zoning in on specific structures like the mastoid practice.

Where is the mastoid process located in the neck?

It allows the attachment of muscles such as the occipitofrontalis muscle, as well as certain muscles of the neck like the sternocleidmastoid and splenius capitis muscles. The mastoid process is located on the underside of the mastoid portion of the temporal bone, behind the external auditory meatus.