8. Food does not pass through the digestive system by 'gravity. You can still digest food even if
you are lying down. Explain how food passes through our digestive system.
9. State the role of the following in human respiratory system.
a. (a) Nasal Hair (b) Diaphragm (c) Alveoli
10. Design any 1 posters (A-4 size sheets) on
a. awareness for disorders related to pancreas
b. awareness for circulatory disorders
c. reasons for indigestion and dental caries
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8.By peristalsis.
9.a)Nasal hair cleans the air entering our respiratory tract and helps condition it.
B) Diaphragm 's contraction and relaxation regulates pulmonary volume and hence,pulmonary pressure.
C)Alveoli serves as site of exchange of gases.
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