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Related Concept Videos

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...
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...
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...
Overview of the Axial Skeleton01:09

Overview of the Axial Skeleton

The skeleton is subdivided into two major divisions—the axial skeleton and the appendicular skeleton. The axial skeleton forms the vertical, central axis of the body. It includes all of the bones of the head, neck, chest, and back. It protects the brain, spinal cord, heart, and lungs. It also serves as the attachment site for muscles that move the head, neck, and back and for muscles that act across the shoulder and hip joints to move their corresponding limbs.
The axial skeleton of the adult...

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Related Experiment Video

Updated: Jul 6, 2026

The Establishment of Calvarial Suture-Bony Composite Defects in Rats: A Standardized Model for Suture-Regenerative Therapy Investigation
04:17

The Establishment of Calvarial Suture-Bony Composite Defects in Rats: A Standardized Model for Suture-Regenerative Therapy Investigation

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Cranial sutures: a brief review.

Bethany J Slater1, Kelly A Lenton, Matthew D Kwan

  • 1Stanford, Calif. From the Department of Surgery, Division of Plastic and Reconstructive Surgery, Stanford University School of Medicine.

Plastic and Reconstructive Surgery
|March 20, 2008
PubMed
Summary
This summary is machine-generated.

Craniosynostosis, premature fusion of cranial sutures, is a congenital defect impacting skull development. Research now focuses on molecular mechanisms and potential therapies, aided by animal models.

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A 3-D Visualization Technique for Bone Remodeling in a Suture Expansion Mouse Model
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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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Midface Hypoplasia and Cranial Base Morphology in Syndromic Craniosynostosis: A Comparative Analysis Study Using a Predictive Regression Model

Published on: November 4, 2025

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Midface Hypoplasia and Cranial Base Morphology in Syndromic Craniosynostosis: A Comparative Analysis Study Using a Predictive Regression Model
08:03

Midface Hypoplasia and Cranial Base Morphology in Syndromic Craniosynostosis: A Comparative Analysis Study Using a Predictive Regression Model

Published on: November 4, 2025

Area of Science:

  • Developmental Biology
  • Genetics
  • Craniofacial Morphogenesis

Background:

  • Craniosynostosis is a common congenital defect resulting from premature fusion of cranial sutures.
  • This condition leads to significant morphologic and functional abnormalities in skull development.
  • Recent research has shifted towards understanding the molecular underpinnings of these deformities.

Purpose of the Study:

  • To review the current understanding of molecular interactions in craniosynostosis.
  • To explore the role of perisutural tissues, embryonic origins, and signaling pathways.
  • To discuss potential therapeutic strategies for craniosynostosis.

Main Methods:

  • Review of scientific literature on craniosynostosis.
  • Analysis of findings from genetic linkage studies and knock-out animal models.
  • Examination of molecular signaling pathways and transcription factors involved in suture development.

Main Results:

  • Craniosynostosis research has advanced from gross descriptions to molecular mechanisms.
  • Animal models are crucial for understanding human craniofacial morphogenesis.
  • Key factors include perisutural tissue interactions, embryonic origins, signaling molecules, and transcription factors.

Conclusions:

  • Understanding the molecular balance regulating suture fate is critical.
  • This knowledge holds potential for developing novel therapies for craniosynostosis.
  • Further research into these mechanisms can guide future treatment approaches.