There is a good how-to article in the February 2009 issue of Light Plane Maintenance.
You need to have your veterinarian express your ferret's bladder and show you how. It's not something the average person should do, refer to link below for instructions
The bladder stores urine before it is urinated out of the body.
The bladder.
the bladder
A calculus in the bladder is a bladder stone.
kidneys produce urine & its collected in the bladder for excecretion.
Is my bladder infected? Ahh, my bladder is infected! Crystal's bladder is infected. "Sit down!" Tony said "because your bladder is infected"
The bladder.
No the kidneys are proximal to the bladder. The urethra is distal to the bladder.
The bladder.
Stones...in...the...bladder Stones...in...the...bladder
The bladder.