describe respiratory system
Answers
Answer:
The respiratory system is a biological system consisting of specific organs and structures used for gas exchange in animals and plants. The anatomy and physiology that make this happen varies greatly, depending on the size of the organism, the environment in which it lives and its evolutionary history.
Explanation:
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Answer :-
■ The "Respiratory system" is proven to be derived from "Endoderm".
■ Whether aquatic or terrestrial, all mammals use atmospheric air for the fulfilment of their respirational needs.
■ The human respiratory system consists of the the folloeing organs :-
- Nostrils
- Nasal cavity
- Nasopharynx
- Larynx
- Trachea
- Bronchii
- Bronchioles
- Alveoli
- Lungs
- Diaphragm
■ The nose is the first of the respiratory passages through which, the inspired air passes.
■ The nasal cavity consists of a large iirregular cavity, which is divided by a septum.
■ The nasopharynx lies behind the nasal cavity, above the level of the soft palate.
■ The "Glottis" is an opening in the floor of the pharynx leading to the larynx.
■ "Epiglottis" is the structure that prevents the entry of food into the respiratory tract during swallowing.