Doctor 8. The approximate number of muscles in the human body is:
O A: 1000
OB: 500
O C: 600
OD: 900

I think (C):600
Explained: other sources say there is about 650 but if you count the muscles within a complex muscle then about 840

Air goes past the epiglottis and into the trachea when you breathe in. from there, it goes to your vocal cords in the larynx until it reaches the bronchi. from the bronchi, air passes into each lung.