The Appendix & Basics of Tonsils and Peyer's Patches

The video explores the appendix, once thought to be vestigial, revealing its roles in storing commensal bacteria and supporting immune functions. It discusses appendicitis, a common appendix pathology, and its potential dangers. The video also covers secondary lymphoid tissues like tonsils and Peyer's patches, highlighting their roles in immune response.

What was the appendix previously thought to be?

• A digestive enzyme

• A vital organ

• A primary lymphoid organ

• A vestigial organ

What is one of the main functions of the appendix?

• To store commensal bacteria

• To absorb nutrients

• To produce digestive enzymes

• To filter blood

How does the appendix help after antibiotic treatments?

• By producing new bacteria

• By releasing stored commensal bacteria

• By increasing blood flow

• By absorbing excess nutrients

What is the role of B cells in the appendix?

• To generate antibodies

• To produce digestive enzymes

• To absorb nutrients

• To filter blood

What is a common cause of appendicitis?

• Nutrient deficiency

• Excessive mucus production

• Lymphatic obstruction

• Bacterial infection

What happens if the appendix ruptures?

• It causes increased digestion

• It leads to peritonitis and sepsis

• It improves immune function

• It enhances nutrient absorption

What is the primary role of tonsils?

• To monitor inhaled and ingested substances

• To produce hormones

• To filter blood

• To absorb nutrients

What is a tonsillectomy?

• Removal of the appendix

• Removal of the tonsils

• Removal of Peyer's patches

• Removal of the spleen

Where are Peyer's patches located?

• In the stomach

• In the esophagus

• In the ileum of the small intestine

• In the large intestine

What do Peyer's patches monitor?

• Oxygen levels

• Intestinal contents for pathogens

• Blood sugar levels

• Nutrient absorption