{{:general_pathology:infectious_diseases:metazoan_longitudinal_section.png|}}

<quiz>
<quiz-item choice question="Choose the correct answer" text="Structures 1,4,7,8 and 12 are:" options="Uterus with eggs, Excretory duct, Intestinal duct, Testes, Vitellarium (Yolk gland)|Uterus with eggs, Coelom, Ovaries, Testes, Eggs|Intestines, Coelom, Ventral sucker, Intestines, Eggs|Uterus with eggs, Excretory duct, Intestinal duct, Ventral suckers, Eggs" 
answer="Uterus with eggs, Excretory duct, Intestinal duct, Testes, Vitellarium (Yolk gland)">
</quiz>