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.
Anatomical terms of muscle. [edit on Wikidata] The external oblique muscle (of the abdomen) (also external abdominal oblique muscle) is the largest and the most superficial (outermost) of the three flat muscles of the lateral anterior abdomen.