What is axillary cavity?

What is axillary cavity?

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.

What is the common term for axillary?

The axilla (also, armpit, underarm or oxter) is the area on the human body directly under the joint where the arm connects to the shoulder.

What is the function of the axillary?

The axillary nerve’s primary purpose is to supply nerve function to the shoulder joint and three muscles in the arm, but it also innervates some skin in that region, as well.

Is axillary anterior or posterior?

The axillary apex is the interval between the superior border of the scapula, the posterior border of the clavicle, and the external border of the first rib. The pectoralis major and the latissimus dorsi form the major anterior and posterior folds, respectively, of the axilla.

Where are axillary glands?

The body has about 20 to 40 bean-shaped axillary lymph nodes located in the underarm area. These lymph nodes are responsible for draining lymph – a clear or white fluid made up of white blood cells – from the breasts and surrounding areas, including the neck, the upper arms, and the underarm area.

How is axillary fold formed?

Two ridges of skin-covered muscle along the sides of the chest where the under side of each arm meets the shoulder. The anterior axillary fold is formed by the lateral edge of the pectoralis major muscle; the posterior axillary fold is formed by the lateral edges of the latissimus dorsi and teres major muscles.

How many axillary nodes are there?

In total, there are between 20 to 30 axillary lymph nodes, though the exact number varies between individuals.

Where are axillary nodes located?

The subscapular axillary lymph nodes are located on the lower part of the armpit’s posterior (rear) wall. The apical and pectoral nodes are located respectively on the upper and lower parts of the pectoralis minor, a thin, flat muscle of the chest.

What is the difference between sentinel and axillary lymph nodes?

Breast cancer can spread to the nearby tissue in the underarms (axillary). This tissue is known as lymph nodes. The first node in the group is known as a sentinel node. If no cancer is found in the first node, the cancer has probably not spread to other nodes in the area.

How many axillary veins are there?

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. There is one axillary vein on each side of the body.

What is the axillary vein made of?

The axillary vein is a deep vein of the upper limb that is formed by the union of the brachial and basilic veins. It starts at the lower border of the teres major muscle and ascends medially through the axilla towards the 1st rib, where it is continued by the subclavian vein.

Where are the sentinel and axillary lymph nodes?

The identification of an axillary sentinel lymph node is typically in the axillary fat pad in the level I or level II lymph nodes of the axilla. These lymph nodes are referred to by anatomists as the pectoral nodes and clavicular nodes.

What are the branches of axillary vein?

Tributaries. The second and third parts of the axillary vein have tributaries that correspond with the branches of the axillary artery. These include the thoracoacromial vein, lateral thoracic vein, subscapular vein, anterior circumflex humeral vein and posterior circumflex humeral vein.

Where is the axillary artery located?

In human anatomy, the axillary artery is a large blood vessel that conveys oxygenated blood to the lateral aspect of the thorax, the axilla (armpit) and the upper limb. Its origin is at the lateral margin of the first rib, before which it is called the subclavian artery.