TYPES OF RESPIRATION

Respiration is a process by which the food gets oxidised to produce energy .  
There are different organs involved in this process in different organisms such as lungs , skin ,gills ,trachea, etc . Hence there are different types of respiration in living organisms depending on the organs involved .
 
Branchial respiration: 

The respiration in which gills are used as organs of respiration is called branchial respiration. Ex. Fishes , they have special structures called gills for exchange of gases .





Tracheal respiration: 

The respiration in which trachea are used as organs of respiration is called tracheal respiration.Ex. Insects ,they have small holes on either side of their bodies called spiracles . These spiracles opens up in tubes called trachea where exchange of gases takes place.






Cutaneous respiration:

If the respiration takes place through the skin then it is called cutaneous respiration. Ex . Frogs and other amphibians undertake two organs for their respiration . The skin and the lungs. When they are in water ( also when they hibernate) they uses skin  to respire . But when they are on land they have lungs for respiration.






Pulmonary respiration:  

The respiration in which lungs are the organs of gaseous exchange ,it is called pulmonary respiration. Ex. Humans and animals.


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