WorksheetsRespiratory System Quiz
Total questions: 10
Worksheet time: 5mins
What is the main external opening for the respiratory system?
Mouth
Nose
Trachea
Lungs
What is the trachea also known as?
Wind pipe
Air sac
Voice box
Diaphragm
What are the tiny sacs in the lungs that allow gas exchange called?
Bronchi
Alveoli
Trachea
Diaphragm
Which muscle is the most important in the respiratory system?
Heart
Diaphragm
Trachea
Larynx
What do the bronchi become inside the lungs?
Alveoli
Trachea
Bronchioles
Diaphragm
What do veins transport from various regions of the body back to the heart?
Oxygen-rich blood
Deoxygenated blood
Nutrients
Waste products
Which is the largest artery in the body?
Pulmonary artery
Carotid artery
Aorta
Femoral artery
What is the primary function of the heart?
To store blood
To filter blood
To circulate blood
To oxygenate blood
How many chambers does the heart have?
Two
Three
Four
Five
What type of blood vessels are capillaries?
Large and thick
Small and thin
Medium and flexible
Rigid and narrow
