Inflammation of the intestine or colitis may be the cause of:

In acute constipation,purgatives that are used to stimulate intestinal peristalsis and evacuation of fluid faeces contain salts of

Dark yellow urine,whitish stools,itching of skin,pale face,etc. are main symptoms of . . . . . . .

$A$ : Vomiting is the forcible expulsion of the contents of the upper gastrointestinal tract through the mouth.
$R$ : The strongest stimuli for vomiting are irritation and distension of the stomach.

Excessive stimulation of the vagus nerve in humans may lead to

Match the following columns:

Column-$I$	Column-$II$
$P$. Vomiting	$I$. Increased liquidity of faecal discharge
$Q$. Diarrhoea	$II$. Food is not properly digested
$R$. Constipation	$III$. Ejection of stomach contents through the mouth
$S$. Indigestion	$IV$. Faeces are retained within the colon