COMPLETE SCIENCE CLASS FIVE NOTES
HUMAN BODY Parts of the breathing system Nose. Trachea(Windpipe). Bronchus. Bronchioles Lungs. Diaphragm Air sacs(alveoli) Functions of the parts of human breathing system Nose:- Cleaning,warming and moistening air. It has hairs and mucus to trap dust. Trachea(Wind pipe):- Cleaning,warming and moistening air,it also has tiny hairs and mucus to trap dust and germs, it has […]