Axillary lymph nodes

As axillary lymph nodes - lymph nodes (Lnn. ) or lymph nodes ( Nll. ) axillary - the lymph nodes in the armpit region are referred to. In humans, 20 to 30 lymph nodes in the deep and superficial axillary lymph nodes are divided, which are joined by other individual lymph nodes.

Axillary lymph nodes of man

The superficial axillary lymph nodes ( axillary Nll. superficial ) are divided into three groups:

  • The first group is located along the axillary vein and receives its inflow from the arm.
  • The second group is located at the lower border of the pectoralis minor and receives lymph from the mammary gland and the anterior and lateral wall of the trunk above the navel.
  • The third group is located on the subscapular artery and receives lymph from the posterior chest, the shoulder and the neck.

The deep axillary lymph nodes ( axillary Nll. profundi ) are the secondary filter station for the lymph from the superficial axillary lymph nodes. From the deep lymphatic drainage is via a lymphatic vessel (truncus subclavius ​​), which empties itself on the right side of the body into the right lymphatic duct on the left into the thoracic duct.

Apart from these two groups more axillary lymph nodes are counted to the axillary lymph nodes:

  • The lymph. axillary cubitales be due to the basilic vein above the flexor surface of the elbow joint, and receive the lymph from the forearm.
  • The lymph. axillary brachial be due to the cephalic vein between the pectoralis major and deltoid and received its tributaries from the arm.
  • The lymph. axillary interpectorales are localized between the pectoralis major and minor, and filter the lymph from the mammary gland.

Axillary lymph nodes of domestic animals

In animal anatomy, the axillary lymph nodes Achsellymphzentrum, Lymphocentrum axillary summarized. Again according to the situation, a distinction several groups:

  • The Lnn. axillary proprii lie at the origin of the subscapular artery. You are missing in pigs.
  • The Lnn. axillary primae costae are present at the first rib of the chest wall. In dogs and horses, they are not formed.
  • The Lnn. axillary accessorii come only in cats regularly and are at the level of the third rib at the thoracic vena lateralis. Occasionally, they are also formed in dogs or ruminants.
  • The Lnn. cubitales are formed only in horses. They are located on the inside of the elbow joint and are palpable through the skin in lean animals.
Trunk (anatomy) Nape Lateral thoracic vein
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