Respiratory System Review

What are the characteristics of the lungs?

• Thin

• Hard

• Rigid

• Soft, stretchy, all of the above

How many lungs do humans have?

• 1

• 2

• 3

• 4

What is the gas that we breathe out?

• Oxygen

• Nitrogen

• Carbon dioxide

• Hydrogen

What is the process of breathing out called?

• Inhale

• Exhale

• Respiration

• Ventilation

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

• Bronchus

• Trachea

• Esophagus

• Larynx

What is the importance of oxygen for our body?

• It is essential for producing energy in our cells.

• It helps in the digestion of food.

• It is necessary for the formation of blood cells.

• It aids in the absorption of nutrients.

What is the main function of the respiratory system?

• To supply the body with oxygen and remove carbon dioxide.

• To digest food and absorb nutrients.

• To circulate blood throughout the body.

• To regulate body temperature and maintain homeostasis.

What do we call the action of breathing in?

• Exhale

• Inhale

• Breathe out

• Hold breath

What are the tiny air sacs in the lungs called?

• Bronchi

• Alveoli

• Trachea

• Larynx

What is the role of the nose in the respiratory system?

• To filter, warm, and moisten the air we breathe.

• To produce sound for speech.

• To regulate body temperature.

• To absorb oxygen directly into the bloodstream.