The axillary vein is one of the major veins of the upper limb. It is formed by the union of the paired brachial veins and the basilic vein and contributes to the drainage of the axilla, arm and superolateral chest wall.
What are the 3 parts of the axillary artery?
It has three branches that are variable in their order: the subscapular trunk, the anterior humeral circumflex artery, and the posterior humeral circumflex artery. The subscapular trunk is typically the largest branch of the axillary artery.
What vein connects to the axillary?
In human anatomy, the axillary vein is a large blood vessel that conveys blood from the lateral aspect of the thorax, axilla (armpit) and upper limb toward the heart….
| Axillary vein | |
|---|---|
| Source | basilic vein, brachial veins, cephalic vein |
| Drains to | subclavian vein |
| Artery | axillary artery |
| Identifiers |
What are the boundaries of the axillary artery?
The axillary artery is a continuation of the subclavian artery that begins at the outer border of the first rib. It then courses through the axilla while being bordered by the lateral (superiorly), posterior (posteriorly), medial (inferiorly) cords of the brachial plexus and the ansa pectoralis (anteriorly).
What is axillary vein?
The axillary vein is a continuation of the brachial and basilic veins running from the lower margin of the teres major (one of the posterior scapulohumeral muscles) that forms the posterior wall of the axilla.
Is there vein in armpit?
A Large Vein of the Upper Limb, Chest, and Armpit The axillary vein is a major vein in the upper body that carries blood from the upper limb, armpit, and the upper side of the chest wall towards the heart.
What are the 6 branches of the axillary artery?
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- S: superior thoracic artery.
- T: thoracoacromial artery.
- L: lateral thoracic artery.
- S: subscapular artery.
- A: anterior humeral circumflex artery.
- P: posterior humeral circumflex artery.
Where is the axillary vein?
Location. The axillary vein arises at the lower border of the axilla, just beneath the teres major shoulder muscle, near where the underarm meets the body.
Where is the axillary vein formed?
Origin. The axillary vein is formed at the inferior border of the axilla by the union of the paired brachial veins (venae comitantes of the brachial artery) and the basilic vein 1,2.
What is axillary anatomy?
The axilla is an anatomical region under the shoulder joint where the arm connects to the shoulder. It contains a variety of neurovascular structures, including the axillary artery, axillary vein, brachial plexus, and lymph nodes.
Where does the axillary vein begin?
teres major muscle
The axillary vein originates at the lower border of the teres major muscle as a continuation of the basilic vein and becomes the subclavian vein at the lateral margin of the first rib.
What arteries are under your armpit?
In the upper extremity, there are two arteries that pass through the axilla, also known as the “armpit.” These arteries are:
- Subclavian Artery: This is the large vessel that begins the blood supply to the upper extremity.
- Axillary Artery: This is a continuation of the subclavian artery.
