Respiratory System Quiz

What is the main organ of the respiratory system?

• stomach

• heart

• liver

• lungs

What are the two main airways that lead into the lungs?

• Bronchus and bronchioles

• Pharynx and larynx

• Trachea and esophagus

• Alveoli and diaphragm

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

• It helps in digestion

• It contracts and relaxes to help in the process of breathing.

• It regulates body temperature

• It supports the circulatory system

What are the tiny air sacs in the lungs where gas exchange occurs?

• bronchioles

• alveoli

• alveolus

• trachea

What is the name of the tube that carries air to the lungs?

• trachea

• esophagus

• bronchi

• pharynx

What is the purpose of the cilia in the respiratory system?

• To regulate blood flow in the body

• To produce sound for speech

• To provide oxygen to the lungs

• To sweep mucus and foreign particles out of the airways

What is the role of the bronchial tubes in the respiratory system?

• Carrying air into the lungs and distributing it to the smaller airways within the lungs

• Producing digestive enzymes

• Pumping blood to the heart

• Filtering waste from the blood

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

• Gas exchange

• Storing nutrients

• Regulating blood pressure

• Producing mucus

What is the name of the muscle that helps with breathing and is located below the lungs?

• abdomen

• trapezius

• biceps

• diaphragm