Armpit (Axilla, Pl. Axillae)

The armpit (lat. axilla) is the armpit located between the upper limb and the chest.

Anatomy of the armpit:

1. The axillary fossa is bounded laterally by the pectoral muscles, superiorly by the shoulder, and inferiorly by the chest wall.

2. The axillary cavity contains large vessels and nerves of the upper limb - the axillary artery and vein, lymph nodes, and the neurovascular bundle.

3. The skin of the armpit contains a large number of sweat and sebaceous glands.

4. Hair in the armpit area is called axillary hair.

Thus, the armpit is an important anatomical zone through which the main neurovascular structures of the upper limb pass. The axillary region plays an important role in thermoregulation of the body.

Armpit (lat. Axilla, plural Axillae) is the armpit located between the shoulder and the chest.

The axillary region is bounded above by the shoulder girdle, outside by the shoulder muscles, below by the chest, in front by the pectoralis major muscle, and behind by the latissimus dorsi muscle.

The brachial artery and vein, lymph nodes, and brachial plexus nerves pass through the armpit. The axillary glands secrete sweat that has a specific odor.

The adjective “axillary” in anatomical terminology is denoted as axillary (for example, axillary artery - axillary artery).

Armpit (Axilla, Pl. Axillae): Anatomical study of the armpit

In human anatomy, the armpit, also known as axilla or plural axillae, is the area of ​​the armpit that is located between the top of the upper limb and the side wall of the chest. The axilla is an important and complex structure that plays an important role in the anatomy and function of the human body.

The armpit is an area where many anatomical structures intersect, including muscles, nerves, blood vessels, lymph nodes and sweat glands. It is surrounded by various muscles such as the pectoralis major, pectoralis minor and axillary muscles. These muscles provide mobility and support to the upper limb and are also involved in the movement of the shoulder and arm.

The axilla also contains important nerves, including the brachial nerve, which supplies the muscles of the upper limb, and the radial nerve, which controls movement and sensation in the arm. It is also home to major blood vessels, including the axillary artery and vein, which provide blood supply and drainage to the upper extremity.

One of the important functions of the armpit is its role in the lymphatic system. The axillary region contains many lymph nodes, which play a key role in protecting the body from infections and tumors. Lymph nodes in the armpit are connected to other nodes throughout the body and help filter lymph and remove microorganisms and other harmful substances.

The armpit also contains sweat glands, which produce sweat and help regulate body temperature. Sweat glands in the underarm area can become irritated or active during physical activity or emotional stress, resulting in sweat odor.

In clinical practice, the axilla plays an important role in the diagnosis and treatment of various diseases. Health care professionals may examine the underarm area to look for enlarged lymph nodes, signs of infection, tumors, or other abnormalities. The armpit can also be used to administer medications or administer local anesthesia.

In conclusion, the armpit (Axilla, Pl. Axillae) is an important anatomical region of the human body. It contains many structures, including muscles, nerves, blood vessels, lymph nodes and sweat glands. The axilla plays an important role in upper limb movement and support, lymphatic drainage, thermoregulation and disease diagnosis. Understanding the anatomy and function of the armpit is of great importance for medical practice and overall human health.