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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...
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...
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,...
Neurulation01:30

Neurulation

Neurulation is the embryological process which forms the precursors of the central nervous system and occurs after gastrulation has established the three primary cell layers of the embryo: ectoderm, mesoderm, and endoderm. In humans, the majority of this system is formed via primary neurulation, in which the central portion of the ectoderm—originally appearing as a flat sheet of cells—folds upwards and inwards, sealing off to form a hollow neural tube. As development proceeds, the anterior...
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...
Muscles for Facial Expressions01:14

Muscles for Facial Expressions

The craniofacial muscles are a collection of approximately 20 thin skeletal muscles situated beneath the skin of the face and scalp. These muscles, primarily responsible for the vast array of human facial expressions, originate from the bones or fibrous structures of the skull and extend outwards to connect with the skin. While most skeletal muscles in the body are enveloped in thick fascia, facial muscles generally have a more delicate fascial covering, with the buccinator muscle being a...

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Analyzing Craniofacial Morphogenesis in Zebrafish Using 4D Confocal Microscopy
09:16

Analyzing Craniofacial Morphogenesis in Zebrafish Using 4D Confocal Microscopy

Published on: January 30, 2014

New directions in craniofacial morphogenesis.

Heather L Szabo-Rogers1, Lucy E Smithers, Wardati Yakob

  • 1Department of Craniofacial Development, King's College London, UK SE1 9RT.

Developmental Biology
|November 28, 2009
PubMed
Summary

Craniofacial development involves complex interactions between germ layers and morphogenetic movements. Understanding growth factor signaling and genetic mechanisms is key to explaining species-specific head morphology and human craniofacial anomalies.

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Last Updated: Jun 18, 2026

Analyzing Craniofacial Morphogenesis in Zebrafish Using 4D Confocal Microscopy
09:16

Analyzing Craniofacial Morphogenesis in Zebrafish Using 4D Confocal Microscopy

Published on: January 30, 2014

Assessing Species-specific Contributions To Craniofacial Development Using Quail-duck Chimeras
09:38

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Published on: May 31, 2014

Isolation of Whole Cell Protein Lysates from Mouse Facial Processes and Cultured Palatal Mesenchyme Cells for Phosphoprotein Analysis
07:26

Isolation of Whole Cell Protein Lysates from Mouse Facial Processes and Cultured Palatal Mesenchyme Cells for Phosphoprotein Analysis

Published on: April 1, 2022

Area of Science:

  • Developmental biology
  • Embryology
  • Genetics

Background:

  • Vertebrate head development is a complex process involving multiple germ layers and three-dimensional morphogenetic movements.
  • Understanding the molecular and cellular basis of craniofacial development is crucial for addressing congenital anomalies.

Purpose of the Study:

  • To review recent embryological and genetic studies on vertebrate craniofacial development.
  • To highlight key signaling centers and cell biological mechanisms governing head morphogenesis.
  • To underscore the genetic and environmental factors influencing species-specific morphology and human craniofacial anomalies.

Main Methods:

  • Review of recent embryological studies in chicken, frog, zebrafish, and mouse.
  • Analysis of genetic studies in human, mouse, and zebrafish.
  • Focus on signaling centers and cell biological mechanisms.

Main Results:

  • Identification of crucial signaling centers in the embryonic face.
  • Demonstration that variations in growth factor signaling impact phenotypic outcomes.
  • Description of cell biological mechanisms fundamental to craniofacial skeleton growth and morphogenesis.

Conclusions:

  • Craniofacial development is shaped by complex interactions influencing species-specific morphology.
  • Insights into genetic and environmental influences are critical for understanding human craniofacial anomalies.
  • Further research will enhance our understanding of congenital head and facial malformations.