Respiratory System Quiz 8th grade 2023

What are the protective mechanisms of the upper Airways?

• Nasal hair and nasal mucosa

• Bronchi and bronchioles

• Alveoli and alveolar sacs

• Trachea and larynx

What is the process called when small particles caught by nasal mucus are swallowed?

• Nucociliary clearance

• Diffusion

• Gas exchange

• Pleural cavity

What is the function of the epiglottis during swallowing?

• To close the larynx

• To warm and moisten inspired air

• To push nasal mucus towards the pharynx

• To stop large dirt particles or insects

Which part of the respiratory system is responsible for gas exchange?

• Bronchi

• Bronchioles

• Alveoli

• Trachea

How many lobes does the left lung have?

• One

• Two

• Three

• Four

What is the function of the alveoli?

• To warm and moisten inspired air

• To trap small particles

• To stop large dirt particles or insects

• To facilitate gas exchange

What is the size of alveoli?

• 10 micrometers

• 20 micrometers

• 30 micrometers

• 50 micrometers

What is the role of red blood cells in the respiratory system?

• To produce nasal mucus

• To facilitate gas exchange

• To warm and moisten inspired air

• To trap small particles

Which muscle is responsible for most of the work of breathing?

• Neck muscles

• Rib muscles

• Abdominal muscles

• Diaphragm

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

• To trap small particles

• To facilitate gas exchange

• To warm and moisten inspired air

• To allow for up and down motions of the lungs