2 - 2,5 cm
one
they are aortas
how do you measure diameter
It's a big blood vessel close to the heart.
aortas
Yes. My boyfriend has two aortas going to his lower body, its a mutation that causes him no problem at all. He didn't know he has it until he was in his late teen when he had a scan for an unrelated reason.
The Aorta channels the blood out of the heart and into the bloodstream after it has been oxygenated
35 cm
The diameter is twice as large as the radius.
The largest diameter airways are the mainstem bronchi. Smaller-diameter airways are the bronchioles.
3,800 miles in diameter.
The small planets are the ones smaller than 8000 miles in diameter. The large planets are the large ones larger than 30,000 miles in diameter.