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WorksheetsMechanism of Breathing
Total questions: 18
Worksheet time: 9mins
In the last part of the terminal bronchioles are tiny bubble-like bunch of structures called _____.
Lungs
Alveoli
Bronchi
Trachea
What part of the Respiratory System is seen on the picture
Lungs
Alveolus
Trachea
Bronchioles
Which two muscles are responsible for BREATHING?
The Diaphragm
The Lungs
The Heart
The Intercostal Muscles
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
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
The diagram below show the relative positions of the human respiratory system and its associated structures in two different breathing stages:
which of the following statements correctly describes the change that takes place form stage P to stage Q?
Pressure inside the lungs is increasing.
Diaphragm muscle is contracting.
Volume of the lungs is increasing.
Rib cage is moving upward.
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
Air rushes into the lungs when
Atmospheric air is greater than the pressure in the lungs and there is a pressure gradient
Atmospheric air is less than the pressure in the lungs and there is a pressure gradient
Air is forced out of the lungs on exhalation when:
Atmospheric air is less than the pressure in the lungs and there is a pressure gradient which creates exhalation
Atmospheric air is more than the pressure in the lungs and there is a pressure gradient which creates exhalation
For inhalation to occur the pressure in the lungs must be lower than that of
the classroom
the air
the atmospheric air
For exhalation for to occur there must be a pressure gradient which is higher in the lungs than..
Atmospheric Air
Lungs
Classroom
Air
