Human respiratory system

             

This picture is screenshot of ncert book 

      

   

·       Air in enter in body through nasal passage 

·       The pass through the trachea, rings of cartilage.

·       Rings of cartilage insure the air passes don’t collapse

·       After that rings of cartilage divide into two parts each parts enter in each lungs called bronchi

·       Bronchi divide into multiple of branches called bronchioles.

·       Each bronchioles contain  balloon like structure called alveoli

·       Air coming by passing the pathway of nose, trachea, larynx, pharynx, bronchi, bronchioles come into alveoli which is balloon like structure which expand

·       The numbers of blood vessels are connected with alveoli which absorb the oxygen and diffuse co₂ in it.

·       Hemoglobin contain in blood which have higher affinity to oxygen.     

·       The bronchi, bronchioles, alveoli, are existing under the lungs which are protected by ribs.

Aerobic respiration- the respiration take place in presence of oxygen it produce co₂ and 38ATP of energy

Anaerobic respiration- the respiration takes place in lack of oxygen produce lactic acid and 2 ATP of energy

Facts about respiration for other living beings –

·       Fish intake their air through gills

·       Breathing rate of fish is much more then terrestrial animal because there are lack of o₂ in water

·       Plant takes oxygen in breathing and release co₂ at night plant release only carbon dioxide because there in process of photosynthesis is not take place at night.

·       Desert plant intake co₂ at night because stomata will release water

  

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