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Related Concept Videos

Pleura of the Lungs01:13

Pleura of the Lungs

The lungs are nestled in a cavity, shielded by the pleura. The pleura, a form of serous membrane, wraps around each lung. This membrane arrangement consists of two layers: the visceral and parietal pleurae. The visceral pleura lines the surface of the lungIn contrast, the parietal pleura is the outer layer and contacts to the thoracic wall, the mediastinum, and the diaphragm. The hilum is the point of connection between the visceral and parietal layers. The space between the parietal and...
Peritoneum01:21

Peritoneum

The peritoneum is a vital membrane that lines the abdominal cavity and covers most of the organs within it. It plays a crucial role in protecting the organs, providing a smooth surface for their movement, and facilitating various physiological processes. Understanding the anatomy and function of the peritoneum is essential for comprehending the complexities of the abdominal region.
Anatomy of the Peritoneum
The peritoneum is divided into two layers: the parietal peritoneum and the visceral...
Gross Anatomy of the Liver01:17

Gross Anatomy of the Liver

The liver, the largest gland within the human body, is a firm and reddish-brown organ. This wedge-shaped structure weighs approximately 1.5 kg and occupies a significant portion of the right hypochondriac and epigastric regions. It extends more to the right of the body's midline than to the left.
Located under the diaphragm, the liver is almost entirely ensconced within the rib cage, providing it with substantial protection. Except for the superior most bare area, the liver's surface is covered...
Pneumothorax-I01:26

Pneumothorax-I

A pneumothorax is a condition where air builds up in the space between the lung and the chest wall, causing the lung to collapse. This condition arises when air enters the space between the parietal and visceral pleura, disrupting the negative pressure essential for lung inflation. This can lead to a partial or complete collapse of the lung.
Pneumothorax can be even further classified as spontaneous, traumatic, and tension pneumothorax.
Pneumothorax II: Pathophysiology01:08

Pneumothorax II: Pathophysiology

Pneumothorax means the presence of air in the pleural space — the thin potential gap between the visceral and parietal pleura. This condition disrupts the normal pressure balance that keeps the lungs inflated, leading to partial or complete collapse of the affected lung.Normal physiologyUnder normal conditions, the pleural space maintains a slightly negative intrapleural pressure, which keeps the lungs expanded against the chest wall. This negative pressure creates a delicate balance between...
Appendicitis01:19

Appendicitis

Appendicitis is an acute inflammatory condition of the vermiform appendix, most commonly caused by obstruction of its lumen. The appendix is a narrow, blind-ended pouch that extends from the cecum, making it particularly prone to obstruction. Causes include fecaliths, lymphoid hyperplasia (often after viral infections), parasites, tumors, or foreign bodies. This obstruction initiates a cascade of pathological changes.Luminal Obstruction and Early InflammationAfter obstruction, normal mucosal...

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Related Experiment Video

Updated: Jul 24, 2026

Laparoscopic Common Bile Duct Exploration in Patients with a Previous History of Biliary Tract Surgery
07:36

Laparoscopic Common Bile Duct Exploration in Patients with a Previous History of Biliary Tract Surgery

Published on: February 10, 2023

Variation in falciform ligament with pheumoperitoneum

S Y Han

    Journal of the Canadian Association of Radiologists
    |September 1, 1980
    PubMed
    Summary

    The falciform ligament shows significant length and thickness variations in adults, but is uniformly thin in children. Understanding these anatomical differences is key for recognizing pneumoperitoneum in critically ill patients.

    Area of Science:

    • Radiology
    • Anatomy

    Background:

    • The falciform ligament is a peritoneal fold that can be visualized on abdominal radiographs.
    • Variations in its appearance can mimic or obscure pathological findings.

    Purpose of the Study:

    • To investigate the anatomical variations in the falciform ligament.
    • To correlate these variations with patient age.
    • To assess the diagnostic utility of the falciform ligament in identifying pneumoperitoneum.

    Main Methods:

    • Retrospective analysis of abdominal radiographs from 21 patients.
    • Measurement of falciform ligament length and thickness.
    • Comparison of findings between adult and pediatric populations.

    Main Results:

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  • Adult falciform ligaments exhibited significant variation in length (6-14 cm, mean 9.9 cm) and thickness (1-11 mm, mean 6 mm).
  • Pediatric falciform ligaments were consistently thin.
  • Familiarity with these variations aids in the prompt recognition of pneumoperitoneum.

    • Conclusions:

    • Anatomical variations of the falciform ligament are common in adults but not in children.
    • Knowledge of these variations is crucial for accurate interpretation of abdominal radiographs, particularly in diagnosing pneumoperitoneum in critically ill patients.