Brachiocephalic Trunk (also known as Brachiocephalic Trunks, Trunk, Brachiocephalic): The first and largest artery branching from the aortic arch. It distributes blood to the right side of the head and neck and to the right arm.

NIH MeSH · D016122Anatomy

Brachiocephalic Trunk

Also known asBrachiocephalic Trunks · Trunk, Brachiocephalic · Trunks, Brachiocephalic · Innominate Artery · Arteries, Innominate · Artery, Innominate · Innominate Arteries

Definition

The first and largest artery branching from the aortic arch. It distributes blood to the right side of the head and neck and to the right arm.

MeSH classification

  • A07.015.114.145

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Related concepts

Anterior Cerebral Artery

Artery formed by the bifurcation of the internal carotid artery (CAROTID ARTERY, INTERNAL). Branches of the anterior cerebral artery supply …

Aorta, Abdominal

The aorta from the DIAPHRAGM to the bifurcation into the right and left common iliac arteries.

Aorta, Thoracic

The portion of the descending aorta proceeding from the arch of the aorta and extending to the DIAPHRAGM, eventually connecting to the ABDOM…

Arterioles

The smallest divisions of the arteries located between the muscular arteries and the capillaries.

Axillary Artery

The continuation of the subclavian artery; it distributes over the upper limb, axilla, chest and shoulder.

Basilar Artery

The artery formed by the union of the right and left vertebral arteries; it runs from the lower to the upper border of the pons, where it bi…

Brachial Artery

The continuation of the axillary artery; it branches into the radial and ulnar arteries.

Bronchial Arteries

Left bronchial arteries arise from the thoracic aorta, the right from the first aortic intercostal or the upper left bronchial artery; they …

Common questions about Brachiocephalic Trunk

What does Brachiocephalic Trunk mean in medicine?
The first and largest artery branching from the aortic arch. It distributes blood to the right side of the head and neck and to the right arm. This definition is taken from the National Library of Medicine's MeSH (Medical Subject Headings) 2026 release, which is the standard vocabulary used to index PubMed and most medical literature.
Is Brachiocephalic Trunk known by any other names?
Yes. Brachiocephalic Trunk is also referred to as Brachiocephalic Trunks, Trunk, Brachiocephalic, Trunks, Brachiocephalic, Innominate Artery in different clinical, research and patient-facing contexts. The MeSH descriptor groups all of these synonyms under a single canonical concept so research and records stay consistent.
Where does Brachiocephalic Trunk sit in the medical classification?
Brachiocephalic Trunk falls under the broader medical category "Anatomy" in the MeSH hierarchy (tree numbers: A07.015.114.145). Browsing the related concepts on this page takes you to neighbouring topics in the same branch of medicine.
Where can I get a plain-language explanation of Brachiocephalic Trunk?
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Source: NIH MeSH 2026 (D016122) — National Library of Medicine, public domain. View official MeSH record ↗