Anatomy & Physiology of the Oral Cavity & Pharynx

This video explores the digestive system, focusing on the oral cavity's role in digestion. It covers the mechanical and chemical processes in the mouth, emphasizing the importance of teeth, tongue, and salivary glands. The video also discusses the pharynx's role in swallowing and previews the next topic, the esophagus.

What is the primary focus of this video in the digestive system series?

• The stomach and its functions

• The oral cavity and pharynx

• The small intestine and nutrient absorption

• The liver and its role in digestion

Why is mechanical digestion in the mouth considered more significant than chemical digestion?

• Because it involves the breakdown of proteins

• Because it involves the absorption of nutrients

• Because it increases the surface area for enzyme action

• Because it starts the digestion of fats

What is the main function of the teeth in the digestive process?

• To detect taste

• To absorb nutrients

• To secrete digestive enzymes

• To increase the surface area of food

How does the tongue contribute to the digestive process?

• By mixing food with saliva and aiding in taste

• By absorbing fats

• By breaking down proteins

• By secreting digestive enzymes

What are gustatory receptors responsible for?

• Detecting the texture of food

• Absorbing nutrients

• Sensing the temperature of food

• Detecting the taste of food

What is the role of intrinsic salivary glands?

• To secrete digestive acids

• To produce saliva that contains antibodies and enzymes

• To break down proteins

• To absorb nutrients

Which enzyme is active in the oral cavity and what does it do?

• Pepsin, breaks down proteins

• Trypsin, breaks down proteins

• Salivary amylase, breaks down starch

• Lingual lipase, breaks down fats

What is the primary function of the pharynx in digestion?

• To act as a passageway for food

• To secrete digestive enzymes

• To absorb nutrients

• To digest proteins

What happens to the bolus of food after it passes through the pharynx?

• It is expelled from the body

• It is digested in the stomach

• It is broken down in the mouth

• It is absorbed in the small intestine

What is the state of starch digestion when the bolus reaches the stomach?

• Completely digested

• Partially digested

• Not digested at all

• Fully absorbed