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Corpus: Brachial artery

from latin: arteria - artery; brachium - arm

1. Definition

The brachial artery is a large arterial blood vessel in the area of the upper arm. It is a continuation of the axillary artery, which changes its name at about the level of the lower edge of the tendon of the teres major muscle. It retains this name until it branches into its two end branches (radial artery and ulnar artery) in the cubital fossa.

The short section of the brachial artery that runs in the cubital fossa is also called the "cubital artery".

3D model of the arteries of the arm, the brachial artery is labeled no. 1

2. Division

  • Right brachial artery
  • Left brachial artery

3. Course

In its course within the medial bicipital sulcus, it comes to lie above the medial intermuscular brachial septum and runs along this on the medial side of the humerus almost unpadded on the bone to the cubital fossa. As it passes into the cubital fossa, it crosses under the aponeurosis of the biceps muscle to finally divide into its two terminal branches.

4. Main branches

  • Ulnar artery
  • Radial artery

5. Secondary branches

6. Variety

A second superficial brachial artery may exist as an anatomical variety. It branches off in the axilla and continues distally into the radial artery. The vessel runs superficially and can therefore be damaged during blood sampling and by intra-arterial injection of medication.

7. Clinic

Due to its narrow course along the humerus, the brachial artery is extremely vulnerable in humeral shaft fractures and can be affected. However, in addition to the aforementioned disadvantage, the proximity to the humerus has the advantage that the artery can be compressed very well as an initial measure in distal arm injuries, thus preventing major blood loss.

The pulse of the brachial artery can be easily felt at the ulnar edge of the biceps (in the medial bicipital groove).

8. Quiz

9. Image source

Stichworte: Artery, Corpus, Corpus-Quiz, Vessel

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Johannes Betz
DocCheck Team
Miriam Dodegge
DocCheck Team
Dr. Frank Antwerpes
Arzt | Ärztin
Dr. rer. nat. Fabienne Reh
DocCheck Team
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Letzter Edit:
04.07.2024, 09:45
46 Aufrufe
Nutzung: BY-NC-SA
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