Functions of the Digestive System

The video explains the digestive system, starting with the role of food and bio macromolecules. It details the structure of the alimentary canal, including the mouth, esophagus, stomach, and intestines. The oral cavity and teeth types are described, followed by the pathway from the pharynx to the stomach. The small and large intestines' structure and function are covered, along with the tissue layers of the alimentary canal. Finally, the video discusses the digestive glands, including saliva glands, liver, and pancreas, and their roles in digestion.

What is the primary role of the digestive system in relation to bio macromolecules?

• To store them for future use

• To break them down into smaller, absorbable molecules

• To eliminate them from the body

• To convert them into energy directly

Which part of the alimentary canal is responsible for preventing food from entering the windpipe?

• Epiglottis

• Esophagus

• Pharynx

• Stomach

What is the function of the pyloric sphincter?

• To secrete digestive enzymes

• To absorb nutrients

• To regulate the flow of food from the stomach to the duodenum

• To store bile

Which layer of the alimentary canal contains goblet cells that secrete mucus?

• Serosa

• Muscularis

• Submucosa

• Mucosa

What is the primary function of villi in the small intestine?

• To produce bile

• To secrete digestive enzymes

• To increase the surface area for absorption

• To store nutrients

Which gland is the largest in the human body and plays a crucial role in digestion?

• Thyroid gland

• Liver

• Salivary gland

• Pancreas

What is the main function of the common bile duct?

• To absorb nutrients

• To store bile

• To transport bile to the duodenum

• To produce bile

Which part of the pancreas is responsible for secreting insulin?

• Gastric portion

• Hepatic portion

• Endocrine portion

• Exocrine portion

What is the role of the sphincter of Oddi?

• To absorb nutrients

• To produce insulin

• To store digestive enzymes

• To regulate bile flow into the duodenum

What is the overall function of the digestive system?

• To eliminate waste

• To break down food and absorb nutrients

• To store food

• To produce energy directly