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functions of respiratory system (non-respiratory functions of lungs…
functions of respiratory system
non-respiratory functions of lungs
protective function
3.pulmonary alveolar macrophages engulf foreign particles coming with air
1.air conditioning
4.secretion of immunoglobulin IgA provides immunity to the respiratory mucus membrane against the microbes coming with air
2.bronchial secretions help to trap dust & other particles present in the inspired air
metabolic functions
3.various lipids are componants of the pulmonary surfactant.eg dipalmitoylphosphatidylcholine
2.synthesis of collagen & elastic fibers
1.synthesis of protein,fat, carbohyrates
others
produces ACE
the angiotensin-converting enzyme(ACE
is a central component of the renin–angiotensin system (RAS), which controls blood pressure by regulating the volume of fluids in the body. It converts the hormone angiotensin I to the active vasoconstrictor angiotensin II.
fibrinolytic system
the lungs contain a fibrinolytic system that lyses clots in the pulmonary vessels
releases subs like histamine, bradykinin during anaphylaxis
general
2.filters inspired air
3.prod sound
.4.contains receptors for smell
5.gets rid of excess water & heat
obtain o2 from the external environment & supply it to the cells
and to remove from the body co2 produced by cellular respiration
6.helps regulate blood pH