Unit page, primary language: EN, subsidiary: LA, interface: EN, work in progress

anterior spinal artery

Official Latin term arteria spinalis anterior
Official term anterior spinal artery
Unit identifier TAH:U4065
Unit type single
Materiality material
Link to the unit anterior spinal artery
Links of entity generic: anterior spinal artery
Entity-oriented links Universal page Definition page
External links TA98 FMA PubMed
Partonomic links Level 2: cerebrospinal arterial system Short Extended
Level 3: spinal arterial system
Taxonomic links Level 2: segment of organ Short Extended
Level 3: artery
Level 4: spinal arterial system
Subsidiary language with Latin
Non Latin primary language
Taxonomic definition
Taxonomic definition The anterior spinal artery is a spinal arterial system [systema arteriosum spinale ] which is formed by the confluence of two branches issued from the left vertebral artery [] and the right vertebral artery [] and descends anteriorly to the spinal cord [medulla spinalis ].

The situation of the arteria spinalis anterior.

This unpaired structure is particular amongst the cerebral arteries, for the reason that it is a quite rare unpaired artery, together with the arteria basilaris and the arteria communicans anterior. Indeed, the system of cerebral arteries is predominantly a double system with a few important anastomoses insuring a beneficial redundancy.

The arteria spinalis anterior is formed by the junction of two branches of the left and right vertebral arteries at the level of the cranium, then the artery descends on the anterior face of the spinal cord, having a number of anastomoses with lateral arteries. It terminates with the spinal cord at the level of L2.

An unpaired artery cannot be a branch of two distinct arteries. Therefore, the arteria spinalis anterior is considered to be part of the systema vertebrobasilare.

human body
TAH:U4065 anterior spinal artery
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Date: 28.06.2023