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Anterior Longitudinal Ligament

The anterior longitudinal ligament is a strong band located anterior to the vertebral bodies and discs.

Interactive Anatomical Interface

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scapula
First Rib
second rib
third rib
fourth rib
fifth rib
sixth rib
seventh rib
eighth rib
ninth rib
tenth rib
eleventh rib
twelfth rib
Clavicle
Sternoclavicular ligament
Intervertebral disc
Thoracic vertebra
Linea alba
Coracoacromial ligament
Capsular ligament
Coracohumeral ligament
Intertransverse ligament
Anterior Longitudinal ligament
Manubrium
Sternum

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scapula
Clavicle
First Rib
second rib
third rib
fourth rib
fifth rib
sixth rib
seventh rib
eighth rib
ninth rib
tenth rib
eleventh rib

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twelfth rib
Manubrium
Sternum
Sternoclavicular ligament
Interactiventervertebral disc
Thoracic vertebra
Linea alba
Coracoacromial ligament
Capsular ligament
Coracohumeral ligament
Intertransverse ligament
Anterior Longitudinal ligament
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Highlight
Scapula
clavicle
capsular ligament
First Rib
Second Rib
third rib
fourth rib
fifth rib
sixth rib
seventh rib
eighth rib
Ninth rib
Tenth Rib
eleventh rib
Twelfth rib
Thoracic Vertebra
Intertransverse (thoracic) ligament
Lumbar Vertebra
Intertransverse ( lumbar ) ligament
Coraclavicular ligament

Highlight
Scapula
clavicle
capsular ligament
First Rib
Second Rib
third rib
fourth rib
fifth rib
sixth rib
seventh rib
eighth rib

Highlight
Ninth rib
Tenth Rib
eleventh rib
Twelfth rib
Thoracic Vertebra
Intertransverse (thoracic) ligament
Lumbar Vertebra
Intertransverse ( lumbar ) ligament
Coraclavicular ligament

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Structure

Along with bodies of remaining cervical vertebrae it expands anterior towards the anterior arch of atlas. It includes long and short fibres and is a strong ligament. The long fibres link over several vertebrae while short fibres are deep and link through a single pair of vertebrae and are superficial, and merge together with the annulus fibrous of the intervertebral disc.

Anterior Longitudinal Ligament

Anterior Longitudinal Ligament

Attachments

It is strongly connected to the discs and is inserted within the periosteal sheath of the vertebral bodies. Inferiorly the anterior longitudinal ligament is constant with the anteromedial part of the sacroiliac joint capsule. Both crura of the diaphragm connect over the anterior longitudinal ligament within the upper lumbar spine, and some fibres expand in the ligament inside the lower lumbar area. Its longitudinal fibres have numerous layers – the deeper, shorter fibres connecting adjacent vertebrae, and the more superficial layers crossing 2-4 vertebrae.

Age-related changes develop within the anterior longitudinal ligament so that it loses its elastic traits and energy dissipation characteristics. The density of the bone in which the ligament connects also reduces. As the mineral content of the bone lowers with age there is also a lack of strength of the ligament.

Functions

The main role of the ligament is to avoid anterior separation of the vertebral bodies at the time of extension. It also helps to balance the lumbar lordosis. Forward and backward gliding of the vertebrae is avoided mainly by the annulus fibrosus, while the anterior longitudinal ligament also inhibits movement. The anterior longitudinal ligament is highly susceptible towards injury during rotation.


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By | 2018-02-01T08:31:01+00:00 September 22nd, 2017|Abdomen, Anatomy, Joints and Ligaments|0 Comments