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WorksheetsThe Respiratory System
Total questions: 20
Worksheet time: 10mins
Contains little hairs that help filter the air you breathe in, blocking dirt and dust from getting into your lungs.
mouth
nasal cavity
trachea
bronchi
Opening, along with the nasal cavity, for breathing.
nasal cavity
mouth
larynx
alveoli
Back of the throat
esophagus
larynx
pharynx
bronchiole
Voice box; contains the vocal cords.
larynx
pharynx
esophagus
bronchi
Windpipe; takes air from your mouth to your lungs.
pharynx
larynx
esophagus
trachea
Elastic sacs with branching passages into which air is
drawn, so that oxygen can pass into the blood and carbon dioxide be removed.
trachea
bronchi
lungs
diaphragm
The branches of the trachea which take air into and
out of the lungs.
bronchi
bronchioles
trachea
larynx
Smaller branches of the bronchi.
aveoli
larynx
pharynx
bronchioles
Tiny air sacs in the lungs where gas exchange takes place. Oxygen in / carbon dioxide out.
bronchi
alveoli
bronchioles
lymph nodes
The muscle beneath the lungs which makes
breathing possible.
diaphragm
bronchi
bronchioles
alveoli
The respiratory zone consists of the
trachea and bronchi
nasal cavity, pharynx and larynx
bronchioles and alveoli
mouth and throat
Tube that carries food from the mouth to the stomach, not involved in breathing.
trachea
esophagus
larynx
bronchi
Which part of the respiratory system is responsible for producing sound?
pharynx
alveoli
larynx
bronchioles
What is the main function of the alveoli in the lungs?
producing mucus
moving air to the trachea
filtering dust
gas exchange
These apply to inhalation. Tick all that apply.
Diaphragm moves up
Ribs move in
Ribs move out
Diaphragm contracts
Creates larger pressure in thoracic cavity
These apply to exhalation. Tick all that apply.
Diaphragm relaxes
Pressure increases in thoracic cavity
Pressure is less outside the body
Diaphragm moves down
What causes change in pressure when we breathe?
Carbon dioxide levels
Oxygen levels
Diaphragm movement
Hypoxia
What happens to the epiglottis when you are breathing?
It closes the airway
It opens to allow air passage
It vibrates to produce sound
It contracts to aid in swallowing
1. larynx
2. nasal cavity
3. pharynx
4. trachea
Which of the following is the correct order that air would flow during inhalation.
What is the primary function of the nasal cavity in the respiratory system?
To aid in digestion
To produce sound
To protect the trachea
To filter and humidify the air
