FUNCTIONS OF RESPIRATORY SYSTEM
The main function of the respiratory system is to provide a site for gas exchange in the body. Other functions include:
The main function of the respiratory system is to provide a site for gas exchange in the body. Other functions include:
- Move air to and from exchange sites
- Protect respiratory surfaces form dehydration, environmental harms, and pathogens
- Allow speaking and singing
- Helps in detection of olfactory stimuli
RESPIRATORY SYSTEM DEFENSES
- Mucous secreted by glands trap particles
- Cilia sweep these particles to pharynx, are swallowed, and destroyed by stomach acid.
- Hairs in nose trap particles
- Particles that make it to alveoli are consumed by macrophages.