The Lungs
-Brings oxygen into our body
-It allows us to exhale carbon dioxide from our body
The Respiratory System-
Breathing out is completely normal and instant.
Breathing through your mouth it reduce immunity.
The Cardiac Muscle (heart)
Pumps blood,
Veins help and and travel blood through your body
The blood takes away the waste
Pumping action creates what we know as our pulse
Veins don't have a muscular wall but have valve like structures which prevents blood flowing backwards.
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