timeous Exchange
diffusion mammals
-
& of
is a
relatively slow process however the smaller gaseous exchange in consists
-
diffusion
,
the surface -
volume ratio the less effective i.
specialised •
Lungs
-
large surface area
surfaces which air moves
become neccecary .
• tubes through
muscles that bring ventilation
•
the breathing
A specialized PATHWAY OF AIR TO LUNGS
-
surface increases the need for an effective transport :
as a ventilation mechanism
system as well that can
bring the
the medium
-
surface into contact with containing oxygen air enters through nasal openings & flow up nasal passages
-
in Nose air is : filtered
moistened
- brought to
body temp
Characteristics for effective surface area :
turbinate bones increase surface area a direct flow to pharynx
Large surface absorb Oz
-
• -
Thin diffusion nasal passages lined with columnar epithelium ( traps dust)
easy
-
• -
moist facilitate diffusion d health of surface nasal have blood cappilaries that
walls of passages many
-
•
-
•
Transport system warm / cool the air
mechanism into contact with surface
•
ventilation -
bring Oz of nasal passage very sensitive
lining
=
-
desicdtion ( ) mechanical
suffice nt against drying 4
•
protection out
injury
-
air moves from nasal tracheal
passage to pharynx to
DEFINITIONS : -
the pharynx leads to the oesophagus
-
opening of trachea =
glottis
breathing mechanical
↳ glottis
-
process that brings source of Oz into
,
can be
with surface for gaseous exchange
contact - the olfactory region
closed by epiglottis
is in the upper nasal
has hairs chemical stimuli
cavity .
sensory that experience
-
Gaseous exchange , exchange of Oz & coz between lungs & blood -
Aromatic substances dissolve in moisture & are detected by
& blood and tissues olfactory region
impulses are detected by olfactory lobe of the brain where
-
smell is interpreted
Respiration ,
-
Release of from energy rich fuel in the
energy
-
,
presence of Oz and with water and coz as waste .
sinus
ÉÉ
E-.¥÷¥÷t:*
nasal .
¥ ¥ ÷i ¥÷
cavity olfactory region
turbinate bones
.
go,
nasal can
pharynx
mouth -
soft plate
:* ¥: ÷¥
" "
"" " " " -
muscles 0
.
"
Plate
" "" "" " " " ""
)
"
" " • n.ae
e. µ . . .
| .
mouth
|
Ribs -
/
larynx
glottis oesophagus
diaphragm
trachea
pleural
cavity position of heart
diffusion mammals
-
& of
is a
relatively slow process however the smaller gaseous exchange in consists
-
diffusion
,
the surface -
volume ratio the less effective i.
specialised •
Lungs
-
large surface area
surfaces which air moves
become neccecary .
• tubes through
muscles that bring ventilation
•
the breathing
A specialized PATHWAY OF AIR TO LUNGS
-
surface increases the need for an effective transport :
as a ventilation mechanism
system as well that can
bring the
the medium
-
surface into contact with containing oxygen air enters through nasal openings & flow up nasal passages
-
in Nose air is : filtered
moistened
- brought to
body temp
Characteristics for effective surface area :
turbinate bones increase surface area a direct flow to pharynx
Large surface absorb Oz
-
• -
Thin diffusion nasal passages lined with columnar epithelium ( traps dust)
easy
-
• -
moist facilitate diffusion d health of surface nasal have blood cappilaries that
walls of passages many
-
•
-
•
Transport system warm / cool the air
mechanism into contact with surface
•
ventilation -
bring Oz of nasal passage very sensitive
lining
=
-
desicdtion ( ) mechanical
suffice nt against drying 4
•
protection out
injury
-
air moves from nasal tracheal
passage to pharynx to
DEFINITIONS : -
the pharynx leads to the oesophagus
-
opening of trachea =
glottis
breathing mechanical
↳ glottis
-
process that brings source of Oz into
,
can be
with surface for gaseous exchange
contact - the olfactory region
closed by epiglottis
is in the upper nasal
has hairs chemical stimuli
cavity .
sensory that experience
-
Gaseous exchange , exchange of Oz & coz between lungs & blood -
Aromatic substances dissolve in moisture & are detected by
& blood and tissues olfactory region
impulses are detected by olfactory lobe of the brain where
-
smell is interpreted
Respiration ,
-
Release of from energy rich fuel in the
energy
-
,
presence of Oz and with water and coz as waste .
sinus
ÉÉ
E-.¥÷¥÷t:*
nasal .
¥ ¥ ÷i ¥÷
cavity olfactory region
turbinate bones
.
go,
nasal can
pharynx
mouth -
soft plate
:* ¥: ÷¥
" "
"" " " " -
muscles 0
.
"
Plate
" "" "" " " " ""
)
"
" " • n.ae
e. µ . . .
| .
mouth
|
Ribs -
/
larynx
glottis oesophagus
diaphragm
trachea
pleural
cavity position of heart
