Degree of normal intestinal loop rotation is:
Abnormal rotation of the intestinal loop may result in twisting of the intestine (volvulus) and a compromise of the blood supply. Normally, the primary intestinal loop rotates 270deg counterclockwise. Ref: Langman's embryology 11th edition Chapter 14.
180deg counterclockwise
180deg clockwise
270deg counterclockwise
270deg clockwise