In Depth: Muscles. The major muscle in the chest is the pectoralis major. This large fan-shaped muscle stretches from the armpit up to the collarbone and down across the lower chest region on both sides of the chest. The two sides connect at the sternum, or breastbone.
Listen for bowel sounds for atleast 1 min in each quadrant and you should hear anywhere from 5-30 bowel sounds in each quadrant. If you don't hear anything or (0-4 bowel sounds) in a quadrant after 1 minute listen for a full 5 min. 0 to 4 bowel sounds heard in 5 min are called hypoactive Bowel sounds, more than 30 bowel sounds in a minute are called hyperactive... Hope this helps you ;--) May 14, '09.
Normal Stomach Noises. Noises within the stomach and bowels are a normal part of gastrointestinal physiology. Most of the time these noises are inaudible to the human ear but when hungry or after eating, bowel sounds may be audible to the person or even others in the near vicinity. This is not abnormal.