Context: The cecum or caecum (/ sikm /, plural ceca / sik /; from the Latin caecus meaning blind) is an intraperitoneal pouch that is considered to be the beginning of the large intestine. It is typically located on the right side of the body (the same side of the body as the appendix, to which it is joined).

Question: the blind-ended sac that is part of the large intestine is the?
Steam of consciousness below:
To answer the question, consider the following: The cecum or caecum (/ sikm /, plural ceca / sik /; from the Latin caecus meaning blind) is an intraperitoneal pouch that is considered to be the beginning of the large intestine.
So, the answer is The cecum or caecum.