Constipation can last from days to months, with interludes of diarrhea or normal bowel function. Stools are often hard and may be described as pellet shaped in at least 25% of bowel movements, or Bristol Stool Form Scale 1-2 (separate hard lumps like nuts that are difficult to pass, or sausage shaped but lumpy).
The external abdominal oblique muscle is the largest and most superficial of the 3 paired, flat abdominal muscles. It arises from the lower 8 ribs and interdigitations of the serratus anterior muscle.
Choosing from the three layered muscles of the lateral abdominal wall, the external abdominal oblique remains the most superficial yet ironically the strongest. The fibers of the muscle are directed medially and inferiorly to amplify its contraction.he deepest of the muscles of the abdomen is the transversus abdominis. The long fibers of this muscle are put to use across the abdominal wall, laterally. A large sheath encases the long rectus abdominis in its entirety.