Path
It begins at the level of the diaphragm, crossing it via the aortic hiatus, technically behind the diaphragm, at the vertebral level of T12. It travels down the posterior wall of the abdomen, anterior to the vertebral column. It thus follows the curvature of the lumbar vertebrae, that is, convex anteriorly. The peak of this convexity is at the level of the third lumbar vertebra (L3).
It runs parallel to the inferior vena cava, which is located just to the right of the abdominal aorta, and becomes smaller in diameter as it gives off branches. This is thought to be due to the large size of its principal branches. At the 11th rib, the diameter is 122mm long and 55mm wide and this is because of the constant pressure
Read more about this topic: Abdominal Aorta
Famous quotes containing the word path:
“In the path of an action merely typical
To create the universal, originate a symbol
Out of the impact?”
—T.S. (Thomas Stearns)
“Today brings the sad, glad tidings that Mrs. Abraham Lincoln has passed from that darkness which had fallen upon her path through this life, out into the light and joy of that life toward which her vision has so long been strained.
Modern education is lethal to children.... We stuff them with mathematics, we pummel them with science, and we use them up before their time.”
—Honoré De Balzac (1799–1850)
“Examples are cited by soldiers, of men who have seen the cannon pointed, and the fire given to it, and who have stepped aside from he path of the ball. The terrors of the storm are chiefly confined to the parlour and the cabin.”
—Ralph Waldo Emerson (1803–1882)