Upper Digestive System

What is the finger-like projections found in the digestive system called?

• Protozoa

• Villi

The ___ helps in mixing saliva with food.

• Heart

• Stomach

• Nose

• Tongue

The Digested food is absorbed by____.

• Small Intestine

• Large Intestine

• Lungs

• Brain

Which part of the upper digestive system is responsible for the initial breakdown of carbohydrates?

• Esophagus

• Stomach

• Mouth

• Pharynx

What is the primary function of the esophagus in the digestive system?

• Absorb nutrients

• Transport food to the stomach

• Break down proteins

• Produce digestive enzymes

Which enzyme found in saliva begins the digestion of starches?

• Pepsin

• Amylase

• Lipase

• Trypsin

The process of swallowing is also known as:

• Mastication

• Deglutition

• Peristalsis

• Absorption

What is the role of the epiglottis during swallowing?

• Secretes saliva

• Prevents food from entering the trachea

• Absorbs nutrients

• Breaks down proteins

Which structure connects the mouth to the esophagus?

• Trachea

• Larynx

• Pharynx

• Bronchi

What is the pH range of saliva in the mouth?

• 1-2

• 3-4

• 6-7

• 8-9