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Related Concept Videos

Cranial Bones: Lateral View01:27

Cranial Bones: Lateral View

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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...
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Cranial Bones: Superior and Posterior View01:14

Cranial Bones: Superior and Posterior View

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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,...
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Gross Anatomy of Bone01:17

Gross Anatomy of Bone

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The two main features of a long bone are the diaphysis and the epiphysis.
The diaphysis is the tubular shaft that runs between the proximal and distal ends of the bone. The walls of the diaphysis are composed of dense and hard compact bone made of numerous osteons — the functional unit of the compact bone. The hollow region in the diaphysis is called the medullary cavity, which harbors the bone marrow. In infants and children, this marrow cavity is filled with red marrow, whereas in...
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Overview of the Skull01:08

Overview of the Skull

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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...
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Sutures of the Skull01:22

Sutures of the Skull

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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...
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Bone Formation by Intramembranous Ossification01:29

Bone Formation by Intramembranous Ossification

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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 ...
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Related Experiment Video

Updated: Aug 25, 2025

Extracting the Cochlea from a Human Temporal Bone: A Cadaveric Protocol
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Extracting the Cochlea from a Human Temporal Bone: A Cadaveric Protocol

Published on: August 18, 2023

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Temporal Bone Anatomy.

John C Benson1, John I Lane1

  • 1Department of Radiology, Division of Neuroradiology, Mayo Clinic, 723 6th Street, South West, Rochester, MN 55902, USA.

Neuroimaging Clinics of North America
|October 16, 2022
PubMed
Summary
This summary is machine-generated.

Understanding complex temporal bone anatomy is crucial for diagnosing pathologies. This article offers a comprehensive overview of its intricate structures for clinicians.

Keywords:
AnatomyCTMRITemporal bone

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Last Updated: Aug 25, 2025

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Area of Science:

  • Anatomy
  • Otology
  • Neurotology

Background:

  • The temporal bone contains complex, minute structures within dense bone.
  • Accurate diagnosis of temporal bone pathologies requires a thorough anatomical understanding.

Purpose of the Study:

  • To provide a comprehensive overview of temporal bone anatomy.
  • To cover structures from large components to small foramina, canals, and clefts.

Main Methods:

  • Detailed anatomical description.
  • Review of established anatomical landmarks and relationships.

Main Results:

  • A systematic description of temporal bone anatomy.
  • Identification of key foramina, canals, and clefts.

Conclusions:

  • A robust understanding of temporal bone anatomy is essential for clinical practice.
  • This overview serves as a valuable resource for clinicians diagnosing temporal bone pathologies.