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Related Concept Videos

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...
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...
Cerebrum: Anatomical Overview I01:26

Cerebrum: Anatomical Overview I

The main and largest component of the human brain is the cerebrum. The cerebrum consists of two main parts: the cerebral cortex, an outer layer with wrinkles or folds known as gyri and shallow grooves called sulci, and a deeper region beneath it. The cerebrum divides into two distinct hemispheres and contains five different lobes: the frontal, parietal, temporal, occipital, and insula. The central sulcus separates the frontal and parietal lobes and two functionally important gyri — the...
Body Planes01:06

Body Planes

Body planes in anatomy are imaginary flat surfaces used as reference points to divide the body into sections for anatomical study. These planes are essential for understanding the orientation, relationships, and spatial organization of anatomical structures.
The sagittal plane is the plane that divides the body or an organ vertically into right and left sides. If this vertical plane runs directly down the middle of the body resulting in equal division, it is called the midsagittal or median...

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Divided parietal bone in plagiocephaly.

Regina A Fenton1, Christopher R Kinsella, James J Cray

  • 1Division of Pediatric Plastic Surgery, Children's Hospital of Pittsburgh of UPMC, University of Pittsburgh, Pittsburgh, PA, USA.

The Journal of Craniofacial Surgery
|January 18, 2011
PubMed
Summary
This summary is machine-generated.

A rare supernumerary cranial suture in the parietal bone can cause plagiocephaly. This extra suture impacts skull shape and growth differently than typical plagiocephaly causes.

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Area of Science:

  • Craniofacial development and pediatric neurosurgery.

Background:

  • Plagiocephaly, a common skull deformity, is typically caused by external forces (deformational) or premature fusion of cranial sutures (synostotic).
  • Supernumerary cranial sutures are rare and their impact on skull morphology is not fully understood.

Observation:

  • A case study of a patient presenting with plagiocephaly due to an unusual, extra suture dividing the parietal bone.

Findings:

  • The supernumerary parietal suture presented with features atypical for deformational or synostotic plagiocephaly.
  • The presence of this accessory suture influences cranial growth and skull shape in a unique manner.

Implications:

  • Understanding supernumerary sutures is crucial for accurate diagnosis and management of pediatric skull deformities.
  • This case contributes to the knowledge of cranial suture variations and their effect on skull development.