The spleen plays an important role in the immune system, therefore when the spleen is no longer present the immune system weakens and can cause the affected to become more susceptible to illness/infection. Furthermore, the affects individual will have a harder time fighting the illness/infection than someone with a full immune system.
Answer:
Air first enters the body through the mouth or nose, quickly moves to the pharynx (throat), passes through the larynx (voice box), enters the trachea, which branches into a left and right bronchus within the lungs and further divides into smaller and smaller branches called bronchioles.
Explanation:
I hope this helps :)
Sorry im late, wish i could have gotten to it sooner :)
Bad hygiene, puberty, physical activity or just normal teenage bodily changes.