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Related Concept Videos

Bone Formation by Intramembranous Ossification01:29

Bone Formation by Intramembranous Ossification

Intramembranous ossification is one of the two processes involved in the development of bones within an embryo. The flat bones of the face, most of the cranial bones, and the clavicles are formed via this process. During intramembranous ossification, the bones develop directly from sheets of undifferentiated mesenchymal connective tissue.
The process begins when mesenchymal cells in the embryonic skeleton gather together and differentiate into osteogenic cells, which then develop into...
Overview of the Skull01:08

Overview of the Skull

The cranium (skull) is the skeletal structure of the head that supports the face and protects the brain. It is subdivided into the facial bones and the brain case, or cranial vault. The facial bones underlie the facial structures, form the nasal cavity, enclose the eyeballs, and support the teeth of the upper and lower jaws.
The cranial vault surrounds and protects the brain and houses the middle and inner ear structures. This cavity is bounded superiorly by the rounded top of the skull, which...
Cranial Bones: Superior and Posterior View01:14

Cranial Bones: Superior and Posterior View

The superior view of the cranium shows the frontal and paired parietal bones.
The frontal bone is the single bone that forms the forehead. At its anterior midline, between the eyebrows, there is a slight depression called the glabella. The frontal bone also forms the supraorbital margin of the orbit. Near the middle of this margin is the supraorbital foramen, the opening that provides passage for a sensory nerve to the forehead. The frontal bone is thickened just above each supraorbital margin,...
Cranial Bones: Lateral View01:27

Cranial Bones: Lateral View

The lateral view of the cranium is dominated by temporal, sphenoid, and ethmoid bones.
The temporal bone forms the lower lateral side of the skull. The temporal bone is subdivided into several regions. The flattened upper portion is the squamous portion of the temporal bone. Below this area and projecting anteriorly is the zygomatic process of the temporal bone, which forms the posterior portion of the zygomatic arch. Posteriorly is the mastoid portion of the temporal bone. Projecting...
Sutures of the Skull01:22

Sutures of the Skull

The human skull is composed of several bones that come together to protect the brain and support the structures of the face. The junctions where these bones meet are called sutures.
Sutures are immobile joints between adjacent bones of the skull. The narrow gap between the bones is filled with dense, fibrous connective tissue that unites the bones. The long sutures located between the skull bones are not straight but instead follow irregular, tightly twisting paths. These twisting lines tightly...
Structural Joints: Fibrous Joints01:03

Structural Joints: Fibrous Joints

Fibrous joints are a type of joint where the bones are connected by fibrous connective tissue. These joints provide stability and minimal to no movement between the articulating bones. There are three types of fibrous joints.
Suture
All the bones of the skull, except for the mandible, are joined to each other by a fibrous joint called a suture. The fibrous connective tissue found at a suture strongly unites the adjacent skull bones and thus helps to protect the brain and form the face. In...

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Related Experiment Video

Updated: Jul 26, 2026

A 3-D Visualization Technique for Bone Remodeling in a Suture Expansion Mouse Model
06:51

A 3-D Visualization Technique for Bone Remodeling in a Suture Expansion Mouse Model

Published on: August 18, 2023

Identification of skull from its suture pattern.

P Chandra Sekharan

    Forensic Science International
    |March 1, 1985
    PubMed
    Summary

    Skull suture patterns are unique identifiers. Comparing visible skull sutures with radiographic images offers a reliable method for skull identification in forensic and anthropological studies.

    Area of Science:

    • Forensic Anthropology
    • Craniometry
    • Radiology

    Background:

    • Ectocranial suture patterns exhibit significant variability.
    • Individualistic patterns suggest potential for identification.

    Purpose of the Study:

    • To investigate the individuality of ectocranial suture patterns.
    • To assess the feasibility of using radiographic images for skull identification based on suture patterns.

    Main Methods:

    • Random examination of 320 randomly collected skulls.
    • Analysis of skull skiagrams from radiology departments.
    • Comparison of visible skull suture patterns with radiographic patterns.

    Main Results:

    • Ectocranial suture patterns were found to be highly individualistic.

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    Midface Hypoplasia and Cranial Base Morphology in Syndromic Craniosynostosis: A Comparative Analysis Study Using a Predictive Regression Model
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    Last Updated: Jul 26, 2026

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    The Establishment of Calvarial Suture-Bony Composite Defects in Rats: A Standardized Model for Suture-Regenerative Therapy Investigation
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  • No two skulls presented identical suture patterns.
  • Radiographic images incidentally captured suture patterns, confirming their presence in routine diagnostics.

    • Conclusions:

    • Skull suture patterns serve as unique identifiers.
    • Comparing radiographic and visible suture patterns provides a positive method for skull identification.