Respiratory System

1. What is the system that help us breathe?

• Respiratory System

• Excretion System

• Circulatory System

• Digestive System

2. The gas we breathe out is...

• H²O

• O²

• CO²

• He

3. What is the compound in red blood cell?

• Oxyhaemoglobin

• Haemoglobin

• Haemogoblin

• Heamoglobin

4. Where does diffusion happens?

• Bronchiole

• Nostrils

• Trachea

• Alveolus

Tiny hairs that move particles in the nose are called

• mucus

• vocal cords

• cilia

• flagella

Microscopic sacs are called:

• alveoli
• bronchi
• villi

The breathing muscle is called:

• Epiglottis
• Bronchiole
• Diaphragm

What is another name for the windpipe?

• Lungs
• Trachea
• Larynx
• Esophagus

NUMBER 6:

• Lungs

• Trachea

• Mouth

• Alveoli

NUMBER 3:

• Pharynx

• Trachea

• Bronchi

• Alveoli