R subclavian a.
The “R subclavian a
The “R subclavian a.” stands for the right subclavian artery. It is an important blood vessel in the human body that supplies oxygenated blood to various parts of the upper limb and some structures in the thorax.
Originating from the brachiocephalic trunk on the right side of the body, the right subclavian artery branches off and passes underneath the clavicle (collarbone) before ascending towards the arm. It is the continuation of the subclavian artery, which is a major branch of the aorta.
Once it reaches the upper arm, the right subclavian artery further branches into smaller arteries that supply blood to different regions. These branches include the vertebral artery, which supplies blood to the brain and spinal cord, and the thyrocervical trunk, which provides blood to the thyroid gland, neck muscles, and other structures.
In addition to the upper limb, the right subclavian artery also gives rise to the internal mammary artery. This artery travels along the inside of the chest wall and supplies blood to the chest muscles and nearby structures.
The right subclavian artery plays a crucial role in maintaining proper blood flow to the upper extremities, ensuring that tissues receive oxygen and nutrients for their proper functioning. Any blockage or obstruction in this artery can lead to reduced blood flow and potential complications such as ischemia or tissue damage.
Overall, understanding the anatomy and function of the right subclavian artery is important as it helps in diagnosing and treating various medical conditions related to the upper limb and thoracic area.
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