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.
Abdominal sounds are the noises made by the intestines. Bowel sounds. Abdominal sounds (bowel sounds) are made by the movement of the intestines as they push food through. The intestines are hollow, so bowel sounds echo through the abdomen much like the sounds heard from water pipes. Most bowel sounds are harmless. They simply mean that the gastrointestinal tract is working. A health care provider can check abdominal sounds by listening to the abdomen with a stethoscope (auscultation).