Final answer:
The right 90-degree turn between the ascending and transverse colon is the right colic flexure or hepatic flexure. The cecum is the part of the large intestine that attaches to the appendix.
Step-by-step explanation:
The 90-degree turn between the ascending and transverse colon is the right colic flexure, which is also known as the hepatic flexure. This turn occurs at the inferior surface of the liver where the ascending colon bends abruptly to the left to become the transverse colon. The term 'hepatic' refers to the liver, and therefore, the correct answer to the question is option b) hepatic.
The part of the large intestine that attaches to the appendix is the cecum, which is the correct answer to the other question provided. The ascending colon, transverse colon, and descending colon, along with the cecum, are all integral parts of the large intestine. The ascending and descending colons, as well as the rectum, are retroperitoneal, meaning they are located posterior to the peritoneum.