Appendix Anatomy Pictures and Information

6595s, subjoined addition to a document or book, from Latin appendix an addition, continuation, something attached, from appendere (see append ). Used for small outgrowth of an internal organ from 6665s, especially in reference to the vermiform appendix. This sense perhaps from or influenced by French appendix, where the term was in use from 6595s. Appendix ap·pen·dix (ə-pěn'dĭks) n. Pl. Ap·pen·dix·es or ap·pen·di·ces (-dĭ-sēz')A supplementary or an accessory part of an organ or a structure of the body. A small saclike located at the upper end of the.

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Does the appendix have a function HowStuffWorks

The appendix has no known function in present-day humans, but it may have played a role in the in humans of earlier times. The appendix is also called the vermiform appendix because of its wormlike (“vermiform”) shape. Your appendix is located in your lower right abdomen, attached to the large intestine. Just past the ileocecal valve the gateway between the small and large intestine, is the cecum a bulbous mass located at the bottom of the ascending colon. The appendix is a vermiform (worm shaped) organ that hangs off the end of your cecum. In most people it is about 65 cm long. At one time the appendix was thought to be a vestigial organ left over from the days of eating large amounts of plant matter, we now understand the appendix probably plays an important role in our immune system due to its rich supply of lymphocytes better known as B-cells, T-cells and natural killer cells. There are many different types of T-cells, but one of the best known to us are memory T-cells as their name suggests, they are responsible for our immunity to certain diseases through vaccinations. B-cells make the antibodies that fight  antigens (foreign cells). Natural killer cells attack viruses and tumor cells. Although, current knowledge of the role of our appendix is based on well educated guesses, here is what we know:: our appendix may have played a role in helping our distant relatives digest plant matter a mainstay of their ancient diet by storing additional digestive enzymes. Scientists base this knowledge on the comparison between the human appendix and the koala bear appendix. The appendix is rich in lymphocytes as stated above. The appendix -- an organ barely 9 inches long -- causes much debate among medical professionals. In fact, doctors have trouble deciding if the appendix has any use to the body at all. While everyone agrees that the appendix can be removed without causing any adverse health consequences to the patient, some physicians and researchers believe that the appendix does serve a function as part of the immune system. Others feel that the appendix is a, a remainder from the time when humans regularly dined on tree bark and needed an additional organ to break down the roughage. Along with the disagreement over the true function of the appendix, there is no consensus if humans will always have this organ. Some doctors feel that the evolution of the human body will lead to the demise of the appendix, while others believe that the appendix will remain in the body, continuing to do whatever it does. Prophylactic appendectomies for astronauts?

How about for international travelers? If the appendix has no purpose, yet is potentially subject to all of these dangerous -- even life threatening -- conditions, then why can't we simply have a doctor remove our appendix as a preventative procedure? With no clear determination of what the appendix does, there's no agreement on whether prophylactic appendectomies -- appendectomies performed to avoid possible future medical emergencies -- are medically appropriate. For years rumors have circulated that astronauts had their appendixes removed before space travel to avoid a potential medical emergency while in orbit. For similar (yet more earthbound) reasons, many people wonder whether they should have theirs removed before boarding an international flight. There's no truth to the rumor about astronauts, and most physicians do not recommend preventative appendectomies for world travelers either. Seven percent of the general population will have their appendix removed at some point in their lives. Given these low odds, and the fact that most will not pay for a prophylactic appendectomy, they are generally not considered for the healthy traveler. Prophylactic appendectomies are occasionally performed if the patient is undergoing other abdominal surgery. For instance, if the patient has an ovarian cyst removed or a hysterectomy, the doctor may perform an appendectomy at the same time. The reason for this is twofold. If the patient has a history of abdominal pain, such as with endometriosis, that pain can mask the symptoms of appendicitis. Additionally, recovering from abdominal surgery isn't pleasant, and by removing the appendix at the same time as conducting other surgery, you minimize the likelihood of additional surgery. Extending from the inferior end of the large intestine’s cecum, the human appendix is a narrow pouch of tissue whose resemblance to a worm inspired its alternate name, vermiform (worm-like) appendix. It is located in the right iliac region of the abdomen (in the lower right-hand abdominal area), measuring about four inches long and roughly a quarter of an inch in diameter. The appendix is not a vital organ and medical researchers still debate its exact function in our bodies. One hypothesis suggests that it is a vestigial remnant of a once larger cecum. This larger cecum would have been used by vegetarian ancestors to digest cellulose from plants. Supporters of this hypothesis therefore conclude that the appendix no longer serves any purpose for us. Another hypothesis suggests that the appendix acts as a storage area for beneficial bacteria during times of illness.

Appendix Wiktionary

Beneficial bacteria living in the appendix could survive being flushed out of the large intestine by diarrhea. The appendix would therefore help a person to recover more rapidly from illness by enabling the bacteria to re-colonize the intestines after the illness has passed. Doctors typically remove an appendix if it becomes inflamed, and even a healthy appendix may be removed during abdominal surgeries such as a hysterectomy. A doctor’s justification for this removal is that the appendix is susceptible to bacterial infections that lead to, a fairly common and dangerous inflammation of the appendix. Often one of the first signs of appendicitis is pain and tenderness near the navel, often growing sharper and spreading downward into the lower right abdomen. The pain can grow quite severe over the course of a few hours, so much so that it may be impossible to get comfortable or to move without pain. Applying pressure to the area will commonly cause pain that can sharpen after releasing the pressure (a phenomenon called “rebound tenderness”), though this is not always the case. Additional common symptoms include nausea, vomiting, fever and others. Tenderness and growing pain in the right abdomen that is noticeable enough to cause considerable discomfort during movement or at rest warrants medical attention in order to reach a diagnosis and receive any necessary treatment. Untreated appendicitis can lead to the rupture of the appendix, a serious medical emergency wherein fecal matter leaks out of the cecum. Left untreated, the bacteria-laden fecal matter spreads throughout the abdominal cavity, where the bacteria begin to digest the peritoneum that lines the cavity. The infection and inflammation of the peritoneum, known as peritonitis, is a severely painful and potentially fatal consequence of appendicitis. Gain access to thousands of additional definitions and advanced search features ad free! JOIN NOWThese example sentences are selected automatically from various online news sources to reflect current usage of the word 'appendix. ' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. . What made you want to look up appendix? Please tell us where you read or heard it (including the quote, if possible). Subscribe to America's largest dictionary and get thousands more definitions and advanced search ad free!

Carle Spine Institute is regional center of excellence in Illinois for the treatment of back and neck problems. Medical care is directed by board-certified specialists in Physical Medicine Rehabilitation who emphasize a nonsurgical approach. Carle Spine Institute is able to take care of any type of back or neck condition, from treatment of the simple strain all the way to the most complex spine surgery. Learn about the and its key advantages for treating spine problems. Find out more in our Back to Life journal, offering expert advice for active people who experience back and neck pain. This is free and available to download. Our section details the symptoms, causes, and treatment options for spine conditions affecting the back and neck. Like the appendix in a human body, an appendix contains information that is supplementary and not strictly necessary to the main body of the writing. An appendix may include a reference section for the reader, a summary of the raw data or extra details on the method behind the work. You may be required to write an appendix for school or you may decide to write an appendix for a personal project you are working on. You should start by collecting content for the appendix and by formatting the appendix properly. You should then polish the appendix so it is accessible, useful, and engaging for your reader. Close! You should absolutely include any relevant charts and graphs in your appendix. This content is usually too distracting to include in the text and includes charts and graphs you've created yourself or borrowed from other sources. Remember, though, if you use content from another source, you need to cite it. Still, there are other forms of data you can include in the appendix, as well. Try again. Not quite! It is true that you should include information on your research methods in the appendix.

This includes any devices you used to gather your information, such as a video camera or tape recorder. However, there are other kinds of data you can include in the appendix, too. Try another answer. Not exactly! You can include copies of handwritten surveys or online printouts. But keep in mind there are other types of data you can include in the appendix, as well. There’s a better option out there! Almost! You should definitely include sample calculations in the appendix so the reader can view this data to enhance their understanding of the topic. You can also include raw statistical data in the appendix. But remember there are other kinds of data you can include in the appendix, too. Click on another answer to find the right one. The second generation test is less likely to fluctuate from day to day. The two tests are not interchangeable. The second generation test results are slightly higher than the first generation ones. Serial CA-675 testing is a series of CA-675 tests repeated over a period of time.