Phylum: Annelida. “ringed”, commonly called segmented worms Examples: earthworms, marine worms, leeches. Traits. Segmented, round, wormlike bodies. Traits. Bilateral symmetry. Traits. cephalized. Traits. Ventral nerve cord. Traits.
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Up to 15 feet stretched out!
Blood worm long
Bristle worm long
Venomous Setae long
If touched, the setae will detach and lodge in the skin causing burning, itching, and numbness from the toxins they contain
Leeches are longEctoparasites
Irritating them can cause them to regurgitate their stomach contents in the wound, risking infection or disease
Summary: clotting and dilate blood vessels A 45-year-old, white male patient who suffered a complete avulsion of the upper two-thirds of his right ear. The ear was reattached by doing a microvascularanastomosis of a small artery anteriorly. No veins were available for anastomosis. Soon after anastomosis, there was obvious venous congestion. Medicinal leeches were used for treating venous congestion
48 Hours:3 leeches have been applied every 8 hours. Following the initial application, obvious improvement was noted