Respiratory System Quiz

What is the main function of the respiratory system?

• Delivers food to the stomach

• Transmits nerve signals to the brain

• Delivers air to the lungs

• Filters waste products from the blood

What does the nasal septum do?

• Divides the nose into two sections

• Filters the air you breathe

• Produces airflow for speech

• Delivers oxygen to the blood

Where are the paranasal sinuses located?

• In the knee joints

• Within the skull bones

• Inside the abdominal cavity

• On the surface of the skin

What is the function of the tonsils?

• Aid in digestion

• Protect the body from infections

• Help with vision

• Produce saliva

What is the structure known as the voice box?

• Trachea

• Larynx

• Epiglottis

• Bronchus

Which mechanism prevents food from entering the trachea and lungs?

• Epiglottis closing off the laryngopharynx

• Soft palate moving up to close the nasopharynx

• Tonsils filtering air

• Diaphragm contracting

What separates the thoracic cavity from the abdomen?

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How does respiration occur?

• 1 inhalation + 2 exhalations = 1 respiration

• Exchange of nutrients

• Exchange of oxygen for carbon dioxide

• Only during sleep

Where does internal respiration take place?

• In the lungs

• Within cells of blood and tissues

• In the stomach

• In the bones

What happens during exhalation?

• Diaphragm contracts

• Thoracic cavity expands

• Air is drawn into the lungs

• Diaphragm relaxes