Related Experiment Video
Updated: Jun 4, 2025
00:08
Murine Appendectomy Model of Chronic Colitis Associated Colorectal Cancer by Precise Localization of Caecal Patch
Published on: August 24, 2019
9.9K
Anatomical Variations of the Vermiform Appendix.
Athanasios Sakellariadis1, Foteini Sofou2, Dimosthenis Chrysikos2
1Department of Anatomy, Medical School, National and Kapodistrian University of Athens, Greece. sakellariadist@gmail.com.
Acta Medica Academica
|December 25, 2024
Summary
Anatomical variations of the appendix are common, affecting its location and form. Understanding these appendix variations is crucial for surgeons to prevent complications.
Area of Science:
- Anatomy
- Surgical Anatomy
Background:
- The vermiform appendix, a small pouch attached to the large intestine, exhibits significant anatomical variability.
- These variations can impact surgical procedures and diagnosis.
Purpose of the Study:
- To systematically review and present the existing literature on anatomical variations of the appendix.
- To highlight the clinical significance of these variations for medical professionals.
Main Methods:
- A comprehensive literature search was performed in the PubMed database.
- Keywords used were "Appendix" AND "Anatomical variations", resulting in the selection of 40 relevant articles after applying inclusion and exclusion criteria.
Main Results:
- The appendix demonstrates considerable variation in both location and form.
- Common locations include retrocecal and pelvic, while less frequent variations involve intracecal, intramural, or left-sided positions.
- Variations in length, diameter, shape, and even the presence of duplicate or triplicate appendices were noted.
Conclusions:
- The vermiform appendix displays a wide spectrum of anatomical variations.
- Awareness of these appendix variations is clinically important, particularly for surgeons, to avoid potential complications during procedures.
Related Concept Videos
01:22Appendicitis-I: Introduction
88
The appendix, a small, narrow, blind tube extending from the inferior part of the cecum, is widely regarded as a vestigial organ, having lost much of its original function through evolution. Despite its diminished role, the appendix can become inflamed, a condition known as appendicitis.
Etiology: Appendicitis can arise from various causes, primarily rooted in the obstruction of the appendix lumen. Factors contributing to this obstruction include fecal accumulation, lymphoid hyperplasia and, in...
Etiology: Appendicitis can arise from various causes, primarily rooted in the obstruction of the appendix lumen. Factors contributing to this obstruction include fecal accumulation, lymphoid hyperplasia and, in...
88
01:09Large Intestine
454
The large intestine is divided into three main regions: the cecum, colon, and rectum. Extending from the ileocecal valve to the anus, it frames the small intestine on three sides.
The ileocecal sphincter, a mucous membrane fold, guards the opening from the ileum to the large intestine. This valve permits material from the small intestine to pass into the large intestine. Attached to the ileocecal valve is the cecum. This small pouch, approximately 6 cm long, has a twisted, coiled tube known as...
The ileocecal sphincter, a mucous membrane fold, guards the opening from the ileum to the large intestine. This valve permits material from the small intestine to pass into the large intestine. Attached to the ileocecal valve is the cecum. This small pouch, approximately 6 cm long, has a twisted, coiled tube known as...
454
01:21Muscles of the Abdomen
1.0K
The abdominal wall encircles the abdominal cavity, providing flexible protection and shielding the internal organs from harm. It is bordered at the top by the xiphoid process and costal margins, at the back by the vertebral column, and at the bottom by the pelvic bones and inguinal ligament. The abdominal wall is divided into two regions — the anterolateral and posterior regions.
Anterolateral Region
The anterolateral region comprises five paired muscles classified into the lateral and...
Anterolateral Region
The anterolateral region comprises five paired muscles classified into the lateral and...
1.0K
01:12Regional Terms
9.3K
Regional terms describe anatomy by dividing the body parts into different regions that contain structures involved in contributing similar functions. Using these terms helps increase the accurate description and identification of the particular region of interest or region affected by the disease.
Primarily, the human body has two major regions, the axial and appendicular regions. The axial region comprises regions from the head to the abdomen and makes up the central body axis. In contrast,...
Primarily, the human body has two major regions, the axial and appendicular regions. The axial region comprises regions from the head to the abdomen and makes up the central body axis. In contrast,...
9.3K
01:19Abdominal Regions and Quadrants
7.3K
To promote clear communication, for instance, about the location of a patient's abdominal pain or a suspicious mass, anatomists and clinicians typically use imaginary lines to categorize the abdominopelvic cavity into either four quadrants or nine regions to identify organs in the cavity.
The simpler quadrants approach, which is more commonly used in medicine, subdivides the cavity with one horizontal and one vertical line that intersects at the patient's umbilicus (navel). The four...
The simpler quadrants approach, which is more commonly used in medicine, subdivides the cavity with one horizontal and one vertical line that intersects at the patient's umbilicus (navel). The four...
7.3K
01:23Anatomy of the Intestines
71.3K
Although digestion of proteins, carbohydrates, and lipids may begin in the stomach, it is completed in the intestine. The absorption of nutrients, water, and electrolytes from food and drink also occurs in the intestine. The intestines can be divided into two structurally distinct organs—the small and large intestines.
Small Intestines
The small intestine is an ~7 meter-long tube with an inner diameter of just 2.5 cm. Since most nutrients are absorbed here, the inner lining of the...
Small Intestines
The small intestine is an ~7 meter-long tube with an inner diameter of just 2.5 cm. Since most nutrients are absorbed here, the inner lining of the...
71.3K