You can use a picture of the appendix to see its location and shape in the human body. The appendix is located in the lower right area of the abdomen, and to this day, its purpose is still debated by medical researchers.
You can see from looking at a picture of the appendix that it is a narrow worm-like appendage that hangs from the lower right side of the abdominal quadrant. While the appendix is not considered an organ that is necessary for survival, and its purpose is largely unknown, it does contain large amounts of lymphoid tissue, which suggests that it may play a role in the immune system and the digestive system.
Some scientists suggest that the appendix stores helpful bacteria during times of illness, and its location prevents that good bacteria from being flushed out of the body during diarrhea. Another theory is that the appendix is no longer useful to humans, and that it is simply a remnant of the much larger cecum (the pouch located at the beginning of the large intestine) that previous humans had.
Occasionally, the appendix may become inflamed, resulting in a condition called appendicitis. A common symptom of appendicitis is severe pain and tenderness that spreads from the navel to the lower right abdomen. Other symptoms include nausea, fever and vomiting. This condition is treated by surgical removal of the appendix.