what is the size of this tube?
The ureters are between 1.5 - 6 mm in diameter, and surrounded by a layer of smooth muscle for 1 - 2 cm near their ends just before they enter the bladder.
Structure
The ureters are between 1.5 - 6 mm in diameter, and surrounded by a layer of smooth muscle for 1 - 2 cm near their ends just before they enter the bladder. 
what tissue types form the wall of the ureter urothelial cells what is ureter? The ureters are tubes made of smooth muscle that propel urine from the kidneys to the urinary bladder.
The ureters are between 1.5 - 6 mm in diameter, and surrounded by a layer of smooth muscle for 1 - 2 cm near their ends just before they enter the bladder. They are  between 1.5 - 6 mm in diameter, and surrounded by a layer of smooth muscle for 1 - 2 cm near their ends It is between 1.5 - 6 mm in diameter and surrounded by a layer of smooth muscle for 1 - 2 cm
Ureter Ureter Ureter
Structure Structure Structure
The ureters are between 1.5 - 6 mm in diameter, and surrounded by a layer of smooth muscle for 1 - 2 cm near their ends just before they enter the bladder.  The ureters are between 1.5 - 6 mm in diameter, and surrounded by a layer of smooth muscle for 1 - 2 cm near their ends just before they enter the bladder.  The ureters are between 1.5 - 6 mm in diameter, and surrounded by a layer of smooth muscle for 1 - 2 cm near their ends just before they enter the bladder. 

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Ureter [SEP] Structure
From here, in males they cross under the vas deferens and in front of the seminal vesicles to enter the bladder near the trigone. In females, the ureters pass behind the ovaries, and then travel in the lower midline section of the broad ligament of the uterus. For a short part, the uterine arteries travel on top for a short (2.5 cm) period. They then pass by the cervix, travelling inwards towards the bladder.