ODONTOID LIGAMENT Meaning and
Definition
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The odontoid ligament is a strong, fibrous band of connective tissue that spans the gap between the second cervical vertebra (axis) and the first cervical vertebra (atlas) in the human spine. It is also known as the transverse ligament of the atlas.
Functionally, the odontoid ligament acts as a stabilizing force by holding the axis and atlas vertebrae together. It prevents excessive anterior and posterior translation, or movement, between the two vertebrae. Its primary purpose is to secure the odontoid process, a bony projection from the axis vertebra, in place within a specific groove on the atlas vertebra. This alignment is crucial for maintaining the stability and functionality of the upper cervical spine.
The odontoid ligament is composed of dense collagen fibers that form a strong and flexible structure. It is conveniently placed in the center of the spinal canal, surrounded by spinal nerves and blood vessels. The ligament's integrity and strength are essential for optimal neck function and preventing potential damage to the spinal cord from excessive movement or trauma.
In summary, the odontoid ligament is a fibrous connective tissue that connects the axis and atlas vertebrae. Its primary role is to maintain the stability and alignment of the upper cervical spine, preventing excessive movement and protecting the spinal cord from potential injuries.
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• Ligamentum alare, ligamentum apicis dentis.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for ODONTOID LIGAMENT
Etymology of ODONTOID LIGAMENT
The word "odontoid ligament" is derived from two main components: "odontoid" and "ligament".
The term "odontoid" refers to the dens or the tooth-like process of the second cervical vertebra, called the axis. It derived from the Greek word "odontoeides" which means "resembling a tooth". This is because the dens projects superiorly from the body of the axis and resembles a tooth.
The word "ligament" comes from the Latin word "ligamentum", which means a band or tie. A ligament is a fibrous connective tissue that connects bones or cartilages, stabilizing and supporting joints.
Therefore, the term "odontoid ligament" refers to the ligament that connects the odontoid process (dens) of the axis to the bony ring of the atlas (first cervical vertebra).
