Large Intestine Functions and Structure

The video explains the structure and function of the large intestine, also known as the colon. It highlights the three main sections: ascending, transverse, and descending colon. Unlike the small intestine, the large intestine is wider and lacks villi. Its primary functions include reabsorbing water, eliminating feces, and producing vitamins with the help of bacteria. Issues like diarrhea can occur if water reabsorption is impaired. The video concludes with a summary of these key points.

What is the first section of the large intestine called?

• Sigmoid colon

• Ascending colon

• Transverse colon

• Descending colon

What is the primary role of the transverse colon?

• Transports waste across the abdomen

• Stores waste

• Connects to the small intestine

• Absorbs nutrients

How does the size of the large intestine compare to the small intestine?

• It is both shorter and narrower

• It is both longer and wider

• It is shorter but wider

• It is longer but narrower

What structural feature is absent in the large intestine that is present in the small intestine?

• Microvilli

• Crypts

• Villi

• Glands

Which of the following is NOT a function of the large intestine?

• Reabsorption of water

• Absorption of nutrients

• Elimination of feces

• Production of vitamins

What condition might occur if the large intestine fails to reabsorb water?

• Constipation

• Diarrhea

• Heartburn

• Indigestion

What is the consequence of having harmful bacteria in the large intestine?

• Increased vitamin production

• Enhanced nutrient absorption

• Inability to reabsorb water

• Improved digestion

Which type of bacteria in the large intestine helps produce vitamins?

• Streptococcus

• E. coli

• Lactobacillus

• Bifidobacterium

Which vitamin is NOT produced by bacteria in the large intestine?

• Folic acid

• Vitamin C

• Vitamin K

• Vitamin B

What is the process of eliminating solid waste from the body called?

• Ingestion

• Digestion

• Absorption

• Egestion