explain the human respiratory system
Answers
Answer:
The human respiratory system is a series of organs responsible for taking in oxygen and expelling carbon dioxide. The primary organs of the respiratory system are lungs, which carry out this exchange of gases as we breathe.
Explanation:
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Answer:
The respiratory tract in humans is made up of the following parts:
External nostrils – For the intake of air.
Nasal chamber – which is lined with hair and mucus to filter the air and remove dust and dirt.
Pharynx – It is a passage behind the nasal chamber and serves as the common passageway for both air and food.
Larynx – Also known as the soundbox as it helps in the generation of sound and thus helps us in communicating.
Epiglottis – It is a flap-like structure that covers the glottis and prevents the entry of food into the windpipe.
Trachea – It is a long tube passing through the mid-thoracic cavity.
Bronchi – The trachea divides into left and right bronchi.
Bronchioles – Each bronchus is further divided into finer channels known as bronchioles
Alveoli – The bronchioles end up into the balloon-like structures known as the alveoli
Lungs – We have a pair of lungs, which are sac-like structures and covered by a double-layered membrane known as pleura.
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