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The main structures of the respiratory system are:
- mouth
- nose
- pharynx (throat)
- larynx (vocal cords)
- trachea (windpipe)
- bronchi (singular is bronchus; these are the two smaller tubes that are branches of the trachea)
- bronchioles (even smaller tubes off of the bronchi)
- lungs
- alveoli (singular is alveolus; these are tiny sacs on the bronchioles that are surrounded by blood vessels that allow oxygen into the blood)
Wiki User
∙ 7y ago
Wiki User
∙ 8y agoThe respiratory system consists of the nose, pharynx, (throat), larynx, (voice box) trachea (windpipe), bronchi, and lungs.
Structurally the respiratory system consists of two regions.
- The upper respiratory system which includes the nose pharynx, and associated structures
- The lower respiratory system which includes the larynx, trachea, bronchi, and lungs.
It has three main functions
- Provides gas exchange for intake of O2 and elimination of CO2
- helps regulate blood pH
- contains receptors for the sense of smell, filters air and produces sounds for vocalization. well there are more than 2 parts but id say that the main 2 are lungs and nose.
Wiki User
∙ 11y agoTheres more than just 3 structures, theres the Nose, Pharynx, Larynx, Trachea, Bronchi, and the Lungs...Thanx for reading.. And these are the right right answers because I got it from my science textbook...
---Jane.
Wiki User
∙ 9y agoThe respiratory system is made up of the trachea, bronchi, bronchioles, lungs, and the diaphragm. This system is what allows humans to take in oxygen.
Wiki User
∙ 9y agoThe three main structures are the trachea, bronchi and the lungs.
Wiki User
∙ 11y agonose, pharynx, trachea, bronchi, and lungs
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