Question

Which of the following structures of Pheretima are not correctly matched with their location
(A) Anterior loops - 10th, 11th segments
(B) Lateral oesophageal hearts – 12th, 13th segments
(C) Accessory glands - 17th, 19th segments
(D) Seminal vesicles - 9th, 10th segments​

Answer 1

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.Anterior loops are two pairs of loops like vessels, one pair in 10th and 11th segments. They connect the lateral-oesophageal blood vessels with the supra-oesophageal blood vessel. Anterior loops are non-muscular, non-valvular and non-pulsatile.

So, the correct option is '10th and 11th segment'.

Answer 2

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