The air travels through the respiratory system during inhalation in the next order:
<em><u>Nasal cavity:</u></em> You inhale air into your nose.
<u><em>Larynx:</em></u> The air travels down to this organ, a hollow, tubular structure that plays a key role in phonation, respiration, and deglutition.
<u><em>Trachea:</em></u> (Or <em>windpipe</em>) is a wide, hollow and cartilaginous tube that connects the larynx to the bronchi.
<em><u>Bronchi:</u></em> The trachea divides into two primary bronchi; they are the main passageway into the lungs.
<em><u>Bronchioles: </u></em>The bronchi develop smaller the closer they get to the lung tissue and are then consider bronchioles.
<em><u>Alveoli:</u></em> They are tiny air sacs located at the end of the bronchioles, which is the site of oxygen and carbon dioxide exchange in the respiratory system.
If the forces are unequal and acting in different directions, you subtract the smaller number from the bigger number. Forvexample, 5 newtons-3 newtons=2 newtons. The object moves in the direction the bigger number is pointing.
