In which two locations in the horse GIT are impactions commonly found?

Impactions in horses are often encountered at specific sites within the gastrointestinal tract due to the anatomical structure and function of the horse's digestive system. The pelvic flexure and transverse colon are particularly prone to impaction because of their unique shapes and the way they transition between different segments of the intestinal tract.

The pelvic flexure is a sharp bend in the colon where material can easily become lodged, particularly if the horse is not drinking enough water or is consuming dry feed such as hay. This area is a common site for impaction colic, as its design can trap feed material more easily compared to smoother sections of the gut.

The transverse colon also has a relatively narrow lumen compared to other segments of the intestine, making it susceptible to blockages. When fecal matter becomes dehydrated and hardens, it can obstruct these narrower sections, leading to impaction.

The other locations mentioned in the choices, such as the stomach and esophagus, or the duodenum and ileum, are generally not recognized as primary sites for impactions. Similarly, while the ascending colon and descending colon can have issues, they do not have the same risk factors associated with impactions as the pelvic flexure and transverse colon. Thus, understanding the anatomy of the horse's