This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Gynaecology & Obstetrics
The ureter is identified at operation by: 
Select and explain. 
A. Rich arterial plexus, B. Peristaltic movement, C. Relation to lumber plexus, D. Accompanied by renal vein
B: Peristaltic movement
Answer: B: Peristaltic movement 
Explanation: At operation, the ureter is recognized by:

Its pale glistening appearance
By a fine longitudinal plexus of vessels on its surface
More particularly by its peristaltic movement
By palpation between finger and thumb as a firm cord which, when escapes, gives a characteristic 'snap'.

The absence of pulsation does not serve to identify a structure as ureter because veins and obliterated umbilical artery are also non-pulsatile.