NEW
Font size
Worksheets3.1 RESPIRATORY SYSTEM
Total questions: 20
Worksheet time: 16mins
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
Connects the mouth to the trachea.
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
Which of the following shows what happens to the chest cavity when air rushes into the lungs?
decrease in volume
deflates
expands
relaxes
Which of the following happens when you exhale?
chest cavity expands
your lumgs become smaller
your chest cavity becomes smaller
your lungs take in and give off oxygen
The pathway of air into the lungs is:
Which of the pairs of words below are the waste products of respiration?
oxygen and water
oxygen and carbon dioxide
carbon dioxide and water
oxygen, carbon dioxide and water
Why does your body need oxygen?
to produce energy
to expel carbon dioxide
to supply the food with oxygen
to fill the lungs with oxygen
How do you describe the condition of the diaphragm as one exhales?
the diaphragm contracts
the diaphragm relaxes
the diaphragm goes down
both a and c
What material in a lung model represents the diaphragm
Y plastic tubes
the plastic jar
the plastic sheet
2 small plastic bags
Which of the following is true for exhalation?
rib cage moves up and out
rib cage moves down and out
Diaphragm relax and domes upwards
Diaphragm relax and flattens
What are the main muscles of inhalation?
The diaphragm and intercostal muscles
The diaphragm and the abdominal muscles
The smooth muscles and abdominal muscles
The diaphragm and heart muscles
What happens when the intercostal muscles contract during inhalation?
The diaphragm relaxes
The ribs move out and up
Pressure in the lungs increases
The size of the thoracic cavity decreases
When air pressure inside the lungs is lower than air pressure in the atmosphere...
Air moves into the lungs
Air moves out of the lungs
