Swelling can occur in infants due to the fluid overload. It can occur throughout the body or a specific body part. -Hope this helps.
The best answer i can find are Protozoa Ricketts
Although Ricketts are a disease, ever source i can find claims it's the answer.
Explanation:
sure cool it will be nice to actually write on such a beautiful topic
Answer:
The organ of the respiratory system are Nose, Trachea,Bronchus,Larynx,Paranasal sinuses,Lung,Pulmonary,alveolus,Pharynx,Bronchiole,Nasal cavity,Epiglottis,diaphragm