sakshi roll no. 13 activity 1

ACTIVITY NUMBER  1 

1) To study the peristaltic movement in our food pipe (Oesophagus ) by using a Tyre tube .
 

OBJECTIVE : To study the Peristaltic Movement in food pipe .

MATERIAL REQUIRED  : 1)Tyre tube 
                                         2)Some wet soil 

PROCEDURE  : 
                         a)First take the Tyre tube and cut it from a point to make it a circular pipe   
                         b)Put the soil into the pipe from end of the Tyre
                         c)Then try to move the soil downward by the method of contraction and expansion  
                         d)Do the same method ,to move the soil downwards 

OBSERVATION  - We have observed that mud came out from the pipe  by the method of    contraction  and expansion is the same process by which the food that we take reaches to our stomach from the Buccal cavity and this process of contraction and expansion called peristaltic movement .