Human Anatomy: Trivia Quiz On Ileum, Appendix And Large Bowel!

The colon is responsible for absorbing water and electrolytes from the indigestible portion of the chyme. This is an important function as it helps in maintaining proper hydration levels in the body and also ensures that essential electrolytes are retained.

Megacolon • Abnormal dilation of colon • Peristalsis ceases • Extreme cases – may require surgical removal • Symptoms: constipation, abnormal bloating and/or pain • Treatment: laxatives, dietary changes, anti-inflammatory medication if toxic, surgery (all or part)

The patient's complaint of pain near the anus along with the presence of varicose veins near the pectinate line suggests that the patient has hemorrhoids. Hemorrhoids are swollen blood vessels located in the rectum or anus, which can cause pain, itching, and discomfort. The presence of these varicose veins is a characteristic feature of hemorrhoids, making it the correct answer in this case. Meckel's Diverticulum, Megacolon, and Polyps are unrelated conditions and do not present with the same symptoms described by the patient.

The infection will spread via portal circulation.

Meckel’s Diverticulum • 2-4% of the population – more common in males • Remnant of the Vitelline duct (yolk stalk that normally disintegrates) extending from ileum as a blind-ended sac • May be connected to umbilicus • Material can become trapped, creating infection & pain that is easily confused w/ appendicitis

Marginal a of Drummond
 Anastomoses the SMA & IMA

McBurney's Point is a reference point to help find Appendicitis.

The Internal Anal Sphincter is controlled by the ANS, where the internal anal sphincter is contracted by sympathetic innervation and inhibited by parasympathetic innervation. Since the Lumber Splanchnics control the sympathetic innervation of the anus, we would expect problems with contraction if there is a lesion. The external anal sphincter is voluntary skeletal muscle innervated by the inferior rectal nerve which is a branch of the pudendal nerve.

It does contain bacteria.

The termination of Teniae Coli refers to the junction between the sigmoid colon and rectum. The Teniae Coli are three bands of longitudinal smooth muscle that run along the length of the large intestine. They start at the base of the appendix and converge at the sigmoid colon. The termination point of the Teniae Coli is important anatomically as it marks the transition from the sigmoid colon to the rectum.

Since this is a sympathetic response, the answer would have to be Thoracic Splanchnics T8-T10. Lumbar Splanchnics also give a sympathetic response, but to the kidney, bladder, sexual organs and the last part of the colon.

The Ileum is a part of the small intestine located between the jejunum and the large intestine. It is smaller in diameter than the jejunum, which means it has a narrower lumen. The walls of the ileum are thinner than the jejunum, making it more flexible. The ileum has a greater amount of fatty mesentery compared to the jejunum, which helps to support and protect it. However, the ileum has shorter vaso rectae, which are straight arteries that supply blood to the intestine, compared to the jejunum. Lastly, the ileum has fewer arcades, which are the series of arches formed by the branches of the superior mesenteric artery, compared to the jejunum.

o Superior portion - intraperitoneal o Middle portion - retroperitoneal o Inferior portion - subperitoneal