Encyclopedia entry

Subscapular Artery

Version 1

Abstract

Poynter considered this artery the most constant of the axillary branches. This artery may arise from the thoracoacromial (6% of Poynter's series of 200 cadavers). Occasionally, the subscapular arises from the second part of the axillary (15%), and it may also arise from the brachial. Quite often it arises from a common trunk with one or both circumflex humeral arteries (15%). It may arise as a branch from the lateral thoracic, posterior circumflex humeral, or profunda brachii. The posterior circumflex humeral artery may arise from, or form a common trunk (15%) with, the subscapular artery.

Poynter considered this artery the most constant of the axillary branches.

This artery may arise from the thoracoacromial (6% of Poynter's series of 200 cadavers).

Occasionally, the subscapular arises from the second part of the axillary (15%), and it may also arise from the brachial.

Quite often it arises from a common trunk with one or both circumflex humeral arteries (15%).

It may arise as a branch from the lateral thoracic, posterior circumflex humeral, or profunda brachii.

The posterior circumflex humeral artery may arise from, or form a common trunk (15%) with, the subscapular artery. The posterior circumflex humeral artery is a branch of the subscapular in 10% and the profunda brachii in 2% of individuals.

In one documented case, the subscapular arose as a branch of the inferior thyroid.

Usually, the circumflex scapular precedes the thoracodorsal in branching order but in 12% the latter appears first. In 4% of Poynter's cases the circumfex scapular was a separate branch of the axillary artery.

The subscapular artery has a variety of origins:

1. Directly from the subclavian artery 22%

2. Directly from the axillary artery 1%

3. From the stem f the inferior thyroid artery 60%

4. From a common trunk with the superficial cervical artery 8%

5. From a common trunk with the superficial cervical and posterior (dorsal) scapular arteries 2%

6. From a common trunk with the dorsal scapular artery 6%

from Dubreuil-Chambardel, 1926

Riferimenti dell’opera originale

Elenco riportato come compare nella fonte, senza normalizzazione dei formati bibliografici.

  • Bintot, -. (1827) Anomalie de l'sous-scapulaire. Bull. et Mém. de la Soc. Anatomique de Paris 1827:35.
  • Dubreuil-Chambardel, L. (1926) Variations des Artères du Membre Superieur. Masson et Cie, Paris.
  • Mauclaire, -. (1892) Anomalie de l'artère sus-scapulaire venant s'enrouler en 8 de chiffre dans le creux sous claviculaire. Bull. et Mém. de la Soc. Anatomique de Paris 1892:184.
  • See also references for the Supreme thoracic or Lateral thoracic arteries .

Anatomical classification

Systems:
Cardiovascular system

Content provenance

Adaptation

Adaptation of «Subscapular Artery — Illustrated Encyclopedia of Human Anatomic Variation: Opus I: Muscular System» by Ronald A. Bergman, Adel K. Afifi, Ryosuke Miyauchi. Source: https://www.anatomyatlases.org/AnatomicVariants/Cardiovascular/Text/Arteries/Subscapular.shtml Original work distributed under the CC BY-NC-SA 4.0 licence (https://creativecommons.org/licenses/by-nc-sa/4.0/deed.it). Adaptation by Redazione AIVA. Changes from the original: Testo originale inglese riprodotto integralmente e riorganizzato nel formato scheda del portale (sintesi, testo, riferimenti), senza modificarne le affermazioni. La traduzione italiana non è ancora stata eseguita, e la pagina lo dichiara. Le figure non sono state copiate: sono collegate alla pagina d’origine. This publication is not approved or endorsed by the authors of the original work.

Licence

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