dorsal excretory vessels carry fluid
the scolex by the nephridial plexus. The
towards the scolex and the ventral vessels
away from it. The ventral excretory vessels
of unequal diameter and are joined by
ve
The four e
retory
canal
P
in
the
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A modification of the excretory system in insects that live in dry habitats. The distal ends of the Malpighian tubules are in direct contact with the rectum and remove water and salts before they are excreted.
Diuretic hormones
Several hormones that increase Malpighian tubule activity.
Filter chamber
A feature of the hemipteran digestive tract in which the anterior and posterior regions of the midgut are closely associated to bypass most of the midgut, in order to facilitate the excretion of excess fluid.
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