Human Respiratory and Digestive System Anatomy Quiz

Test your knowledge of human anatomy with questions on gas exchange, digestion, enzymes, organs, and functions.

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Which organ is responsible for gas exchange in the human body?

Liver

Kidneys

Lungs

Stomach

2 answered

Which part of the digestive system absorbs most of the nutrients from food?

Esophagus

Stomach

Large intestine

Small intestine

2 answered

Which structure connects the throat to the stomach?

Trachea

Bronchi

Esophagus

Pharynx

2 answered

Which of the following is NOT a function of the liver?

Detoxifying harmful substances

Producing bile

Storing glucose as glycogen

Producing insulin

2 answered

Which of the following organs is responsible for storing and concentrating bile?

Gallbladder

Liver

Pancreas

Spleen

2 answered

What is the function of the epiglottis?

To filter air before it enters the lungs

To produce saliva for digestion

To prevent food from entering the trachea

To absorb nutrients from food

2 answered

Which enzyme is responsible for breaking down carbohydrates in the mouth?

Amylase

Lipase

Pepsin

Trypsin

2 answered

What is the primary function of the diaphragm in the respiratory system?

To control the flow of air into the lungs

To protect the lungs from infection

To produce surfactant to reduce surface tension in the alveoli

To facilitate breathing by contracting and relaxing

2 answered

What is the name of the enzyme responsible for breaking down proteins in the stomach?

Lipase

Pepsin

Amylase

Trypsin

2 answered

#10

Which of the following is NOT a component of the respiratory system?

Trachea

Bronchioles

Appendix

Alveoli

2 answered

#11

What is the function of the alveoli in the respiratory system?

To produce mucus to trap dust particles

To warm and humidify incoming air

To exchange oxygen and carbon dioxide with the blood

To regulate blood pressure

3 answered

#12

Which organ secretes bile to aid in digestion?

Pancreas

Gallbladder

Small intestine

Liver

2 answered

#13

What is the role of mucus in the respiratory system?

To trap and remove dust particles from the air

To regulate the pH of the blood

To transport oxygen to cells

To break down food particles in the stomach

2 answered

#14

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

Absorption of nutrients

Production of digestive enzymes

Breaking down food mechanically

Storing waste products

2 answered

#15

Which structure produces hydrochloric acid in the stomach?

Gallbladder

Pancreas

Pyloric sphincter

Gastric glands

2 answered

Human Respiratory and Digestive System Anatomy Quiz

Which organ is responsible for gas exchange in the human body?

Which part of the digestive system absorbs most of the nutrients from food?

Which structure connects the throat to the stomach?

Which of the following is NOT a function of the liver?

Which of the following organs is responsible for storing and concentrating bile?

What is the function of the epiglottis?

Which enzyme is responsible for breaking down carbohydrates in the mouth?

What is the primary function of the diaphragm in the respiratory system?

What is the name of the enzyme responsible for breaking down proteins in the stomach?

Which of the following is NOT a component of the respiratory system?

What is the function of the alveoli in the respiratory system?

Which organ secretes bile to aid in digestion?

What is the role of mucus in the respiratory system?

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

Which structure produces hydrochloric acid in the stomach?

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