What are Wormian bones?

What are Wormian bones?

Wormian bones are abnormal ossicles that develop from extra ossification centers within the cranium. They are most frequently located in the lambdoid suture or the coronal suture, and have been seen in the fontanelles, particularly the posterior fontanelle.

What is a Wormian?

Wormian bones, also known as intrasutural bones or sutural bones, are extra bone pieces that can occur within a suture (joint) in the skull. These are irregular isolated bones that can appear in addition to the usual centres of ossification of the skull and, although unusual, are not rare.

Are Wormian bones hereditary?

There were statistically significant (P < 0.05) variations between the findings of the present study and values reported in previous studies conducted in other regions of India and different parts of the world. Our observations favour the view that genetic influence primarily determines the morphology of wormian bones.

What is the name given to extra bones that can be created in the skull in between sutures?

Wormian bones (also knows as intrasutural bones) is the name given to the additional small bones sometimes found between the cranial sutures of the bones of the skull vault, most commonly in relation to the lambdoid suture.

What is the purpose of Sutural bones?

Sutural bones are of interest and useful to Human Anatomy, Neurosurgery, Physical Anthropology, Forensic Medicine, Imaging Medicine, Craniofacial surgery and Legal Medicine among others.

What is the function of Sutural bones?

The anatomical knowledge of Sutural bones is clinically important, because their presence is frequently used as a helpful marker of some congenital disorders, mainly bone dysplasia. Nevertheless their only presence is not a clinically significant event to determine any particular disease.

What bones are affected by Cleidocranial dysplasia?

Cleidocranial dysplasia is a rare genetic condition that affects teeth and bones, such as the skull, face, spine, collarbones and legs. The bones in people with CCD might be formed differently or might be more fragile than normal, and certain bones such as collarbones may be absent.

What are the 3 major cranial sutures?

The major sutures of the skull include the following:

• Metopic suture. This extends from the top of the head down the middle of the forehead, toward the nose.
• Coronal suture. This extends from ear to ear.
• Sagittal suture.
• Lambdoid suture.

What are the 4 major structures of the skull?

The four major sutures are the coronal, sagittal, lambdoid, and squamous sutures. They connectthe frontal, parietal, temporal, and occipital bones. The coronal suture joins the frontal bone to the parietal bones.