Related Experiment Video
Updated: Sep 18, 2025

A Murine Model of Hemodialysis Access-Related Hand Dysfunction
Published on: May 31, 2022
The omohyoid odyssey: navigating the vein maze
Anbarasan Arunkumar1, Jeyashanth Riju2, Natarajan Ramalingam1
1Head and Neck Surgery, Christian Medical College and Hospital Vellore, Vellore, Tamil Nadu, India.
Abstract:
Neck dissection is a routine surgical procedure performed by oncosurgeons. The omohyoid muscle acts as a safety landmark in the lower neck, wherein major neurovascular structures lie deep to it. Here we report a unique anatomical variation wherein the internal jugular vein was duplicated and had a special relation with the omohyoid muscle. If one is not aware of this variation, it can lead to a major vascular bleed and may compromise vascular procedures. This report underscores the importance of recognising anatomical variations in surgical practice to ensure safety during neck dissections.
Related Concept Videos
Veins of Head and Neck
On the other hand, the vertebral veins, unlike their arterial counterparts, are not primarily responsible for brain drainage. Instead, they drain the cervical vertebrae, spinal cord, and some small...
Veins of Upper Limbs
The deep venous system is primarily composed of the ulnar and radial veins. The ulnar vein, which drains the fingers through the superficial palmar venous arches, and the radial vein, which serves the palms via the deep palmar...
Veins of Thorax
The azygos vein, positioned just right of the midline and anterior to the vertebral column, begins at the junction of the right ascending lumbar and subcostal veins, terminating in the superior vena cava. This vein drains blood from the right side of the thoracic wall, thoracic viscera, and posterior abdominal wall.
The...
Veins of the Abdomen and Pelvis
The inferior vena cava is fed by numerous smaller veins. The lumbar veins, for instance, drain the posterior abdominal wall, emptying both directly into the inferior vena cava and into the...
Anatomy of Blood Vessels
Arteries
Arteries circulate oxygenated blood from the heart, except the pulmonary artery, which transports deoxygenated blood to the lungs. Large arteries, such as the aorta,...
The Hyoid Bone

