(normal tissue) | A vestigial hollow tube that is closed at one end and is attached at the other end to the cecum, a pouchlike beginning of the large intestine into which the small intestine empties its contents. |
2. Suppurative appendicitis
(inflammation tissue) | Appendicitis is a condition in which the appendix becomes swollen, inflamed, and filled with pus. Since the appendix is closed on both ends with an opening along the middle section, any blockage quickly prevents blood flow and causes death of the tissue. A blockage can result from impacted fecal matter or a condition called lymphoid hyperplasia. In lymphoid hyperplasia, the appendix produces an overabundance of normal cells. These cells create a blockage in the appendix, causing it to become inflamed, which then compromises blood flow to the area. The loss of blood flow causes the tissue in the appendix to die and eventually leads to the appendix bursting. |
(inflammation tissue) | The upper part of the stomach next to the cardia. The first 3 parts of the stomach (cardia, fundus, and body) are sometimes called the proximal stomach. Some cells in these parts of the stomach make acid and pepsin (a digestive enzyme), the parts of the gastric juice that help digest food. They also make a protein called intrinsic factor, which the body needs to absorb vitamin B12. |
4. Peptic ulcer (inflammation tissue) | The term peptic ulcer literally means tissue erosion in the digestive system. An ulcer is a sore or erosion that forms when the lining of the digestive system is corroded by acidic digestive juices. It is estimated that between 5% and 10% of adults globally are affected by peptic ulcers at least once in their lifetimes.
When the lining of these organs (duodenum, oesophagus, oesophageal) is corroded by acidic digestive juices secreted by stomach cells peptic ulcers can form. Peptic ulcers can also produce scar tissue that can block passage of...