What is the axillary region?
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 axillary fossa?
ax·il·lar·y fos·sa. [TA] depression between the anterior and posterior axillary folds forming the floor of the axilla; after puberty, this is a site of hair growth and an abundance of sweat glands. Synonym(s): fossa axillaris [TA], armpit.
What happens if the axillary artery is damaged?
Damage to the axillary artery and brachial plexus can present with a variety of neurovascular signs and symptoms—coldness, pallor, pulseless extremity, delayed or absent capillary refill and others. Impaired upper extremity function may occur with paresthesias or complete paralysis.
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 muscles are near the armpit?
Muscles: The teres major, latissimus dorsi, pectoralis major, and coracobrachialis muscles all make up this region. The deltoid, long head of the triceps, and biceps are close. Bones: The upper ribs and the head of the humerus (upper bone of the arm) both border the axilla.
What is the brachial?
The brachial plexus is a network of nerves in the shoulder that carries movement and sensory signals from the spinal cord to the arms and hands. Brachial plexus injuries typically stem from trauma to the neck, and can cause pain, weakness and numbness in the arm and hand.
Do you have arteries in 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.
Where is the axillary pulse?
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….
What artery is under your armpit?
Axillary Artery: This is a continuation of the subclavian artery. This artery travels deep in the arm pit, feeding muscles and bones around the shoulder with its branches. It eventually turns into the brachial artery.
Are there two axillary arteries?
Hence, the arterial blood supply to the upper limb, and the axillary region in particular, was shared on both sides by two major arteries instead of one. These two arteries emanated from the first part of the axillary artery and may represent persisting branches of the capillary plexus of the developing limb buds.