The Respiratory system - Review

What is the process of breathing called?

• Respiration

• Circulation

• Digestion

• Ingestion

Why is it important to breathe through our nose rather than our mouth?

• The nose has tiny hairs and mucus

  that help filter out dust.

• The nose doesn't need oxygen.

• The nose is where the gas exchange is produced.

• The nose has three nostrils that allow you to breathe.

Which part of the respiratory system filters, warms, and moistens the air we breathe?

• Lungs

• Bronchi

• Nose

• Diaphragm

What are the small tubes that carry air into the lungs called?

• Alveoli

• Bronchi

• Trachea

• Diaphragm

What happen during inhalation?

• the diaphragm and the intercostal muscles expands

• The thorax decreases its volume

• Only the thorax contracts

• the diaphragm and the intercostal muscles contracts

What protects the lungs and helps them expand and contract?

• spine

• ribs

• skull

• pelvis

Where does the gas exchange occur?

• Alveoli

• Bronchi

• Trachea

• Cilia

How does oxygen get from the lungs to the rest of the body?

• Through the stomach

• Through the blood

• Through the muscles

• Through the nerves

What are the tiny air sacs in the lungs called?

• Bronchioles

• Alveoli

• Capillaries

• Diaphragm

What gas do we exhale as a waste product?

• Oxygen

• Nitrogen

• Carbon dioxide

• Helium