A 62-year-old man came to the surgeon with complaints of passing blood stained stools and altered bowel habits for the last two months. His other complaints were pain radiating down the back of both thighs and weakness of hamstring muscles. On per rectum examination a growth was palpable on the posterior rectal wall. 1. What is the extent and dimensions of the rectum? 2. Mention the characteristic features of rectosigmoid junction. 3. What is ampulla of rectum? 4. Name the posterior relations of the rectum. 5. Which nerves are invaded by the growth? 6. Describe with the help of diagram the lymphatic drainage of rectum. 7. Describe the peritoneal relations of the rectum in male and female. 8. Write briefly on the development of rectum.