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Question
In Ascaris, the lumen of pharynx is
In Ascaris, the lumen of pharynx is
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Solution
The correct option is C Triradiate
Ascaris belongs to the group of nematodes. They have a cylindrical and thick-walled pharynx. The pharynx is muscular. The muscular wall have radial muscle fibers which help in the dilation of the lumen. The lumen of the pharynx is triradiate. There are three rays or branches of the muscles which are present. Thus, the correct answer is option C.
Ascaris belongs to the group of nematodes. They have a cylindrical and thick-walled pharynx. The pharynx is muscular. The muscular wall have radial muscle fibers which help in the dilation of the lumen. The lumen of the pharynx is triradiate. There are three rays or branches of the muscles which are present.
Thus, the correct answer is option C.
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