Quiz on the Digestive System

What is the primary function of the digestive system?

• To regulate body temperature

• To transport oxygen

• To circulate blood

• To break down food

Which organ is responsible for the absorption of water and alcohol?

• Mouth

• Small intestine

• Large intestine

• Stomach

What is the term for the study of disorders of the digestive tract?

• Proctology

• Endocrinology

• Hepatology

• Gastroenterology

Which layer of the gastrointestinal tract is responsible for secreting enzymes and absorbing nutrients?

• Submucosa

• Mucosa

• Muscularis

• Serosa

What type of muscle is found in the upper third of the esophagus?

• Smooth muscle

• Cardiac muscle

• Skeletal muscle

• Striated muscle

What is the role of salivary amylase?

• To lubricate food

• To digest proteins

• To absorb nutrients

• To begin starch digestion

Which of the following is NOT a function of saliva?

• Killing bacteria

• Absorbing nutrients

• Activating salivary amylase

• Dissolving food

What is the primary function of the tongue in the digestive process?

• To manipulate food for chewing and swallowing

• To taste food

• To secrete enzymes

• To absorb nutrients

What is the main purpose of the esophagus?

• To digest food

• To secrete digestive enzymes

• To transport food to the stomach

• To absorb nutrients

Which type of muscle controls the voluntary phase of swallowing?

• Smooth muscle

• Striated muscle

• Skeletal muscle

• Cardiac muscle