Anal itching is caused by

Itching due to insect bite is caused by

Haematuria and swimmers itch are caused by

Haematuria and swimmers itch are caused by

Dry, scaly lesions accompanied by intense itching is characteristic of

Dry, scaly lesions accompanied by intense itching is characteristic of

The egestion of feces through the anal opening is called .............

The egestion of faeces to the outside through the anal opening is called

What function is served by the following : (i) Gastric Sphincter ? (ii) Anal Sphincter ?

Identify the following parasites and the phylum to which they belong. It resides in the stomach of humans and causes itching anus and stomach ache.