Review 3

What is the function of the diaphragm during inhalation?

• Filters air

• Contracts to expand the lungs

• Produces mucus

• • Warms the air

Which word means “the process of moving air in and out of the lungs”?

• Diffusion

• Ventilation

• Respiration

• Circulation

1. What is the role of cilia in the nasal passage?

• • Absorb oxygen

• Filter and trap particles

• • Produce sound

• • Expand the lungs

1. “Alveoli” are best described as:

• Muscles in the chest

• Air sacs for gas exchange

• • Tubes carrying blood

• Cells fighting infection

Which term refers to the movement of particles from high to low concentration?

• • Filtration

• Diffusion

• Circulation

• Contraction

What is the by-product of aerobic respiration?

• Oxygen

• Carbon dioxide

• Glucose

• Water vapor

1. The trachea is also known as:

• voice box

• windpipe

• diaphragm

• bronchioles

Which muscle group helps expand the chest during breathing?

• Intercostal muscles

• Abdominal muscles

• Cardiac muscles

• Smooth muscles

1. What does “moisten” mean in the context of the respiratory system?

• • To dry the air

• To warm the air

• To add humidity

• To clean the air

Which structure branches off into bronchioles?

• Trachea

• Bronchi

• alveoli

• diaphragm