The aortic wall, with its high elastic content supported by muscle and collagen, allows for transmission of a more or less steady blood pressure within the circulation by providing a tensile strength that can be adjusted to conform to the pumping strength of the heart muscle
|histologic section of the wall of the aorta shows the thin intima, the thick elastic media characterised by the white wavy bands, and the media which consists of strong collagenous fibres.
|47678.800 artery aorta histology character normal endothelium media adventitia tunica elastica tunica muscularis Davidoff art Davidof|
The annulus is strong and fibrous
The sines have the same character as the aortic wall in general but it is their pocket like shape that characterises them.
The tubular portion is elastic and strong with smooth glistning endothelial surface in the young with progressive roughening of the surface with age and wear.
|01575b06 aorta endothelium ductus arteriosus brachiocephalic arteries intercostal arteries neonate normal smooth normal anatomy gross pathology Courtesy Ashley Davidoff MD|
The arch retains the characteristics of the aorta as described above for the tubular portion. ie it is strong, elastic with a smooth endothelial lining
Thoracic and Abdominal Aorta
The same characteristics of strong pliable elastic wit smooth glistening surface pertain.
|01900.800 adrenal aorta IVC kidney liver lung small bowel ureter diaphragm normal fetal lobation neonate growth time grossanatomy Davidoff MD|
Infiltration of Fat and Fibrous Tissue
Courtesy Ashley Davidoff MD. code heart artery atherosclerosis Davidoff art
|48363 descending thoracic aorta fx aortic ulcer fx atherosclerosis atheroma fx penetrating ulcer CTscan Courtesy Ashley Davidoff MD|
Laying Down of Dystrophic Calcification
|13316 13314 13313 aorta aortic wall elastic layer intima plaque complex lesion atherosclerosis atheroma complex lesion histopathlogy Courtesy Dr Isabelle Joris|
|22014b spleen + fx irregular scar wedge defect calcification + dx chronic splenic infarction + imaging radiology CTscan splenic artery calcified calcification serpigenous atherosclerosis abdomen aorta AAA|