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Related Concept Videos

Anatomy of the Eyeball01:20

Anatomy of the Eyeball

The eye is a spherical, hollow structure composed of three tissue layers. The outer layer — the fibrous tunic, comprises the sclera — a white structure — and the cornea, which is transparent. The sclera encompasses some of the ocular surface, most of which is not visible. However, the 'white of the eye' is distinctively visible in humans compared to other species. The cornea, a clear covering at the front of the eye, enables light penetration. The eye's middle layer, the vascular tunic,...
Accessory Structures of the Eye01:17

Accessory Structures of the Eye

Optical perception, or vision, is an extraordinary sense dependent on converting light signals received via the ocular organs. These organs, known as eyes, are securely positioned within the bony cavities of the skull, called orbits. The orbits serve a dual purpose: a protective shield for the ocular globes and a stable attachment point for the soft ocular tissues. The eye's external protective mechanisms include the eyelids, which are edged with lashes that act as a barrier against foreign...
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...
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...
Deformation in a Circular Shaft01:10

Deformation in a Circular Shaft

One of the distinctive characteristics of circular shafts is their ability to maintain their cross-sectional integrity under torsion. In other words, each cross-section continues to exist as a flat, unaltered entity, simply rotating like a solid, rigid slab. To understand the distribution of shearing stress within such a shaft, consider a cylindrical section inside this circular shaft. This section has a length of L and a radius of R, with one end fixed. The radius of the cylindrical section is...
Ovaries01:26

Ovaries

The ovaries are roughly the size of almonds and measure approximately 2 to 3 centimeters in length. These paired structures are situated within the pelvic region and are anchored by the mesovarium—a peritoneal extension that also connects them to the wider structure of the broad ligament. The support system extends to the suspensory ligament, housing blood and lymphatic vessels. In addition, the ovarian ligament tethers the ovaries to the uterus.
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Three-Dimensional Reconstruction of Orbital Fractures
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Three-Dimensional Reconstruction of Orbital Fractures

Published on: May 16, 2025

[Orbita - anatomy, development and deformities].

K M Hartmann1, M Golinski, A C Schröder

  • 1Klinik für Diagnostische und Interventionelle Neuroradiologie, Universitätsklinikum des Saarlandes, 66421 Homburg/Saar. kirsten@hartmann-online.net

Der Radiologe
|November 13, 2008
PubMed
Summary
This summary is machine-generated.

Understanding human orbital development is key to recognizing normal anatomy and common deformities. This article details embryonic eye development and radiological anatomy, aiding in diagnosing orbital dysplasia.

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Last Updated: Jun 28, 2026

Three-Dimensional Reconstruction of Orbital Fractures
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Published on: December 5, 2025

Area of Science:

  • Ophthalmology
  • Embryology
  • Radiology

Context:

  • The human orbit's development is intricate, influencing both normal anatomy and potential dysplasias.
  • Understanding developmental processes is crucial for accurate anatomical assessment.

Purpose:

  • To elucidate the embryonic development of human eye structures.
  • To present normal radiological anatomy of the orbit using various investigation techniques.
  • To outline common orbital deformities.

Summary:

  • The article explores the embryonic origins of orbital structures.
  • It details the "normal" radiological anatomy of the orbit.
  • Common congenital and developmental deformities of the orbit are discussed.

Impact:

  • Enhances understanding of normal orbital anatomy and its developmental basis.
  • Provides a foundation for diagnosing and managing orbital dysplasias.
  • Aids clinicians in interpreting orbital imaging and identifying abnormalities.