Underarm Anatomy

The body has about 20 to 40 bean shaped axillary lymph nodes located in the underarm area. 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.

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The armpit is the underside of the shoulder joint and is among the warmest.

Underarm anatomy. The second part of the axillary artery gets occluded by the overlying pectoralis minor muscle when the arm was hyperabducted and brought overhead this was described by wright in 1945. It is commonly referred as having three parts. One medial to the pectoralis minor one posterior to pectoralis minor and one lateral to pectoralis minor.

Axillary artery and branches the main artery supplying the upper limb. The axillary artery is the 3 rd most common site for arterial cannulation and can also be used for hemodialysis access. In humans the formation of body odor happens mostly in the armpit.

There are many possible causes of armpit or underarm pain referred to medically as axillary pain that can range from mostly a nuisance to serious. It also contains many sweat glands. Clinical anatomy for dummies by david terfera shereen jegtvig the axilla or underarm or less delicately put the armpit is that indentation formed under the area where your arm attaches to your shoulder.

These lymph nodes are responsible for draining lymph a clear or white fluid made up of white blood cells. Blood lymph vessels and nerves going to and from the arm pass through the axilla. These odorant substances serve as pheromones which play a role related to mating.

Its origin is at the lower margin of the teres major muscle and a continuation of the brachial vein. There is one axillary vein on each side of the body. 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.

The arrangement of the chest wall shoulder bones and muscles and the upper arm create a small hollow called the armpit. The medial and posterior parts travel in the axilla. Irritation from deodorant infections in the sweat glands injuries nerve compression or even cancer are only a few of the possibilities.

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