Arterial access from lower extremity. The common femoral artery is the only access site used in the lower extremity. Catheters used for performing coronary angiography via the femoral artery were developed by Melvin Judkins, MD; thus, the method often is referred to as the Judkins technique. This widely used method requires separate preformed catheters for the right and left coronary arteries (see the images below).
Urethral sounds/play, sometimes called sounding, is basically inserting objects (often steel sounds and catheters) into the urethra for erotic purposes. Sounds painful and unpleasant to most, but some people get a kick out of this.
You know the one: lub-dub, lub-dub, lub-dub. Most of us think it's the sound of our heart beating or contracting, but it's not. What we're hearing is the sound of two pairs of valves closing inside the chambers of our heart. Like turnstiles, these valves allow blood to move in one direction through the heart and keep it from backing up down a one-way street.