Related Experiment Video
Updated: Jun 21, 2026

Three-Dimensional Cephalometric Landmark Annotation Demonstration on Human Cone Beam Computed Tomography Scans
Published on: September 8, 2023
Anatomical considerations on the corona mortis
Mugurel Constantin Rusu1, Romica Cergan, Andrei Gheorghe Marius Motoc
1Department of Anatomy and Embryology, Faculty of Dental Medicine, University of Medicine and Pharmacy Carol Davila, 8 Bd. Eroilor Sanitari, Bucharest, Romania. anatomon@gmail.com
The corona mortis (CMOR), a vascular link between obturator and iliac systems, shows diverse arterial and venous patterns. Understanding these variations is crucial for surgical safety in pelvic procedures.
Area of Science:
- Anatomy
- Vascular Surgery
- Human Morphology
Background:
- The corona mortis (CMOR) is a significant vascular connection between the obturator and external iliac systems.
- Variations in CMOR anatomy can pose risks during pelvic surgeries.
Purpose of the Study:
- To investigate the morphological variations of the corona mortis through cadaveric dissections.
- To classify the different arterial and venous patterns of the CMOR and their combinations.
Main Methods:
- Bilateral dissection of 20 adult human cadavers (40 hemipelvises).
- Identification and classification of arterial and venous elements of the CMOR at the superior pubic branch.
Main Results:
- Vascular elements of the CMOR were present in 80% of hemipelvises.
- Identified three main types of CMOR: arterial (Type I), venous (Type II), and combined arterial-venous (Type III).
- Nine subtypes of combined CMOR were classified, highlighting complex vascular arrangements.
Conclusions:
- The corona mortis exhibits significant morphological variability, including arterial, venous, and combined patterns.
- Detailed knowledge of CMOR variations is essential for surgeons to mitigate risks in trauma, orthopedic, and hernia repair procedures.
- Individual assessment of this risky anatomical structure is recommended for surgical planning.
Related Concept Videos
Cranial Bones: Lateral View
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...
Tooth Anatomy
The Crown, Neck, and Root
The visible part of the tooth is referred to as the crown. It's covered by enamel, the hardest substance in the human body. The crown is uniquely shaped for each type of tooth, allowing for different functions such as cutting, tearing, or grinding food.
Cranial Bones: Superior and Posterior View
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,...
Sutures of the Skull
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 Skull
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...
Gross Anatomy of Bone
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 adults, it...
