Final answer:
The intraperitoneal organs found in the lower abdomen are the appendix, cecum, ileum, and sigmoid colon.
Step-by-step explanation:
The intraperitoneal organs found in the lower abdomen are the appendix, cecum, ileum, and sigmoid colon. The appendix is a winding tube that attaches to the cecum, while the ileum is the last part of the small intestine that connects to the cecum. The sigmoid colon is the S-shaped segment of the colon that extends medially to the midline.