Which muscle is irritated by inflamed retrocaecal appendix -: (A) Psoas major, (B) Gluteus maximus, (C) Quadratus femoris, (D) Obturator internus
Answer is A. Ans. is 'a' i.e., Psoas major Abdominal pain in appendicitis:* In children with abdominal pain, who hold their right hip in a flexed position to obtain relief from the pain, one should suspect retrocaecal appendicitis causing irritation of the psoas muscle.