Why is gas exchange very rapid at alveolar level?
Gas exchange occurs swiftly at the alveolar level due to the abundance of approximately 700 million alveoli in the lungs, creating a substantial surface area for efficient gaseous exchange.
Respiration and Circulation
All living organisms require energy to carry out various life processes. The energy that is stored in the body in the form of complex organic compounds (potential energy) is however not usable by the organisms unless it is converted into usable form. This conversion is achieved through the process of respiration
Why is respiration in insect called direct respiration?
Insects respire directly through tracheal tubes, facilitating the exchange of oxygen and carbon dioxide with the haemocoel. This haemocoel, in turn, directly transfers these gases to the tissues for metabolic processes. The process is aptly termed “direct respiration” in insects due to this efficient exchange pathway.
Why does trachea have ‘C’shaped rings of cartilage?
C-shaped cartilage rings in the trachea prevent collapse by accommodating the adjacent esophagus.