By definition, pi is the ratio of the circumference of a circle to its diameter. Pi is always the same number, no matter which circle you use to compute it. Unlike some responses on this forum, PI does not equal 22/7 there is a slight difference.
Rectum. The rectum is the concluding part of the large intestine that terminates in the anus. The average length of the human rectum may range between 10 and 15 cm.Its diameter can be compared to that of the sigmoid colon (the part of the large intestine nearest the rectum) at its onset.However, it becomes larger near the anus, where it forms the rectal ampulla.The key role of the rectal ampulla is to act as a temporary storehouse for feces.ts diameter can be compared to that of the sigmoid colon (the part of the large intestine nearest the rectum) at its onset. However, it becomes larger near the anus, where it forms the rectal ampulla. The key role of the rectal ampulla is to act as a temporary storehouse for feces.
In Depth: Deep muscles. The abdominal muscles provide postural support, protect internal organs, and perform other important functions. The lower abdominal muscles help protect the pelvic cavity. The rectus abdominis is the large muscle in the middle portion of the abdomen.It facilitates the tilt of the pelvis and the curvature of the lower spine. Next to it on both sides of the body is the internal oblique.he deep muscles of the abdominal and pelvic region protect internal organs and perform the many complex movements of the spine, thighs, and hips. Read More.