list the features of gas
exchange surfaces in
humans
large surface area
thin
surface
good blood
supply
good ventilation with
air
name and identify
lungs
diaphragm
ribs
intercostal muscles
internal
external
larynx
trachea
bronchi
bronchioles
alveoli
Annotations:
and associated capillaries
state the functions
of the cartilage in
the trachea
Explain the role of......
in producing volume
and pressure changes
in the thorax leading
to the ventilation of
the lungs
ribs
internal intercostal muscles
external intercostal muscles
diaphragm
state and explain the
differences in
composition
between inspired
and expired air
oxygen
carbon dioxide
water vapour
investigate the
differences in
composition
between
inspired and
expired air
using
limewater
Annotations:
as a test for carbon dioxide
investigate and describe
the effects of physical
activity on rate and depth
of breathing
explain the link between physical activity and depth of breathing
Annotations:
in terms of increased carbon dioxide concentration in the blood, detected by the brain, causing an increased rate of breathing
Carbon dioxide lowers the pH of the blood
Carbon dioxide is a waste product that needs to be excreted
explain the role of ..... in
protecting the gas
exchange system from
pathogens and particles