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WorksheetsMechanics and physiology of ventilation
Total questions: 22
Worksheet time: 11mins
During inhalation the diaphragm and ......contract
skeletal muscles
intercostal muscles
thoracic muscles
smooth muscle
Muscles between the ribs...
skeletal muscles
intercostal muscles
thoracic muscles
cardiac muscles
Intercostal muscles contact and ..... the size of the thoracic cavity
Increase
Decrease
The diaphragm moves slightly
Downward
upward
when the diaphragm moves slightly downward it flares the...
upper portion of the rib cage
Lower portion of the rib cage
middle portion of the rib cage
Thoracic region
During ventilation, when the diaphragm moves slightly downward, the lower portion of the rib cage moves
down and outward
up and slightly down
upward and outward
downward and forward
When the lower rib cage flares and moves upward and outward, this creates..
negative pressure
Positive pressure
Air goes into the lungs with
Negative pressure
Positive pressure
Negative and positive pressure
the diaphragm and intercostal muscles relax during
exhalation
inhalation
respiration
The size of the thoracic cavity decreases during
respiration
inhalation
exhalation
during exhalation the diaphragm moves... the ribs move... and.....creating....pressure in the thorax and air to flow out of the lungs
forward....outward and inward.. negative
Downward...inward and outward...positive
upward...downward and inward....positive
Upward...upward and inward...negative
The diaphragm contributes about ....percent of the effort to breathe
10-20%
60-70%
80-90%
30-40%
the intercostal muscles contribute ....% of the effort to breathe
50-60%
30-40%
10-20%
80-90%
A significant injury that prevents the diaphragm from functioning properly will cause the patients breathing to become
medium
good
inadequate
adequate
The diaphragm recieves its stimulation to contract from the ...
brainstem
spinal cord
phrenic nerve
electrical impulses
The phrenic nerve ...
Exits the spinal cord at the thoracic vertebrae between vertebrae T1 & T12
exits the spinal cord at the cervical spine between vertebrae C3 & C5
Exits the spinal column at the lumbar spine between vertebrae L1 & L5
enters the spinal column at the cervical spine between vertebrae T1 & T12
If... is damaged, the diaphragm will not receive a nervous impulse to contract and will no longer allow the continuation of adequate ventilation
Thoracic region
phrenic nerve
lung cavity
cardiac muscle
When there is an injury to the higher area of the cervical spine, the patient wil not be able to breathe properly and will
die
require artificial ventilation
In the lungs, ... and ... are exchanged through the tin walls of.... and .....
oxygen and carbon dioxide, alveoli and capillaries
glucose and carbon, alvioli and capillaries
in alveolar/capillary exchange, oxygen-rich air enters the.... during each..... and passes through the ..... into the .....
alveoli...inspiration...capillary walls....bloodstream
capillaries....inspiration...alveoli bloodstream
alveoli....exhalation...capillary walls... bloodstrean
carbon and other waste gasses move from the.... through the.... into the.... and are exhaled
blood....capillary walls...alveoli
blood...alveoli...capillary walls
in....exchange throughout the body,.... moves from the cells to the.... and oxygen moves from the capillaries to the ...
alviolar/cappilary... carbon...capillaries...cells
capillary/cellular...carbon dioxide...capillaries...cells
capillary/alviolar...oxygen...alvioli...cells
capillary/cellular....carbon dioxide...alvioli...cells
