The descending branch of the posterior artery is a term used in anatomy to refer to two different anatomical structures.
The first descending branch - the right coronary artery (ramus descendens posterior) - is a branch of the left coronary artery, which supplies blood to the heart. It runs along the anterior wall of the chest and ends at the right ventricle of the heart.
The second descending branch - the posterior pulmonary artery (posterior descending branch) - is a branch of the right pulmonary artery, which delivers blood to the lungs. The posterior pulmonary artery runs along the back wall of the chest, where it branches into smaller vessels that supply blood to the lungs.
Both descending branches play an important role in blood circulation and can be susceptible to various diseases and pathologies. For example, disruption of the blood supply to the heart or lungs can lead to various cardiovascular diseases, such as myocardial infarction or chronic obstructive pulmonary disease.
Overall, the descending branches of the posterior artery are important anatomical structures that must be considered during medical examinations and thoracic surgery.
Descending branches of the posterior artery: arteries that arise from the spine and supply blood to the muscles of the neck, head, upper chest and face. The descending cutaneous nerve is a small nerve located in the hypodermis just below the epidermis. It arises from the superficial cervical sympathetic nerve and innervates the subcutaneous tissue of the temporal region.