Defaecation

 

 
9.5 Defaecation
 

Faeces formed in the large intestine

 \(\downarrow\)

Undigested materials and excretory materials are moved by peristalsis

 \(\downarrow\)

In the colon, water is absorbed making the feces more solid

 \(\downarrow\)

Colon secretes mucus to bind the feces and lubricate the feces movement.

 \(\downarrow\)

Feces stored temporarily in the rectum

 \(\downarrow\)

Defecation reflex causes contraction of the rectal muscle and relaxes the internal anal sphincter.

 
 

 

Defaecation

 

 
9.5 Defaecation
 

Faeces formed in the large intestine

 \(\downarrow\)

Undigested materials and excretory materials are moved by peristalsis

 \(\downarrow\)

In the colon, water is absorbed making the feces more solid

 \(\downarrow\)

Colon secretes mucus to bind the feces and lubricate the feces movement.

 \(\downarrow\)

Feces stored temporarily in the rectum

 \(\downarrow\)

Defecation reflex causes contraction of the rectal muscle and relaxes the internal anal sphincter.