<prompt> Catgut suture is derived from which part of the sheep-StomachIntestineMuscleLigaments  <response>: Ans. is b i.e., Intestine o Catgut suture is prepared from the submucosa of the first one-third of the small intestine of sheep or cow.o Chromic catgut is made by treating catgut with chromic acid salt. This delays the hydrolysis of suture. 