7b- muscles, movement
and the heart
Breathing control & rest
-
CO2 level T : detested
by chemoreceptors in Medulla Oblongata ·· Send electrical
ventilation
impulses by sensory neurons to center in Medulla : act
by
breath in
impulse on intercostal muscles +
diaphragm : contract +
Branchi dilate , chemical
Breathing Stretch
signals
-
out receptors send to
vol taken in or out
per min
so inspiratory center : inhibit expiratory senter. : Greathe out) diaphragm
Ventilation = tidal volume x
freququency at inspiration + intersostal
raze , win
ventilation 1dm3 (min"( relax/
cam3min-1)
Breathing during excercise
LA falls detested chemoreseptors
CO2 + levels inc : ph by in
medilla carotid and acitic bodies , chemoreceptors send
+
impulses
Medulla
to veny . Center in
by sensory neurons ,
sausing parasympathetic US to ast : intercostal Muscle
2 +in. reserves
fast inc depth After
contract >
-
strong to
breathing + rate
frequency of
signals in SA node decrease .: Ventilation rate decreases
- intercostal muscles and rids relax .
and the heart
Breathing control & rest
-
CO2 level T : detested
by chemoreceptors in Medulla Oblongata ·· Send electrical
ventilation
impulses by sensory neurons to center in Medulla : act
by
breath in
impulse on intercostal muscles +
diaphragm : contract +
Branchi dilate , chemical
Breathing Stretch
signals
-
out receptors send to
vol taken in or out
per min
so inspiratory center : inhibit expiratory senter. : Greathe out) diaphragm
Ventilation = tidal volume x
freququency at inspiration + intersostal
raze , win
ventilation 1dm3 (min"( relax/
cam3min-1)
Breathing during excercise
LA falls detested chemoreseptors
CO2 + levels inc : ph by in
medilla carotid and acitic bodies , chemoreceptors send
+
impulses
Medulla
to veny . Center in
by sensory neurons ,
sausing parasympathetic US to ast : intercostal Muscle
2 +in. reserves
fast inc depth After
contract >
-
strong to
breathing + rate
frequency of
signals in SA node decrease .: Ventilation rate decreases
- intercostal muscles and rids relax .
