All About the Human Respiratory System Medically reviewed by Alana Biggers, M.D., MPH — Written by Eleesha Lockett, MS on March 23, 2020 Anatomy & function ...

For more Study on Respiratory System. 3. Human Circulatory System: The main transport system in the human beings is the ‘Blood Circulatory System’.

The distinctive human disease pool—and its array of respiratory viruses in particular—is a product of our distinctive history as a species.

Although regular human flu viruses bound easily with the receptors found in the nose and throat cells, H5N1 strains attached only to those receptors on cells found in the deepest regions of the lungs.