<prompt> In examination of the patient for a hernia, it is useful to realize that -An impulse if often much better seen than feltThe internal abdominal ring lies 1.25 cm. above the midpoint of poupas ligamentThe external abdominal ring lies 1.25 cm above and medial to ASISNone of the above  <response>: Ans. is b i.e., The internal abdominal ring lies 1.25 cm. above the midpoint of poupas ligament 