ETX 10 Lecture Notes - Lecture 16: Box Jellyfish, Respiratory Failure, Cone Snail
27 Nov 2017
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From their diet; usually cannot be delivered i: active animals that deliver venoms by . Thinning or thickening stingers, spines, etc: basic actions of venoms. Ex. snakes can deliver, spiders, scorpions, bees: hemo toxic destroy tissues by digesting proteins; either i. i. i. Paraly e the heart , causing heart failure i. venomous: marine cnidarians, jellyfish, sea anemones, portuguese men-or-war, etc, stinging nematocysts within cnidoblast cells used for defense, predation, locomotion i. The nematocyst springs out and gets injected into skin: responsible for sticky feeling of anemones, box jellyfish . Has a cardiotoxic and necrotoxic venom i. ii. Can actually consume cnidarians and then they can have the venom: molluscs. Looks like a tongue neurotoxic ii. i. ii. i. Venom kills in minutes via respiratory paralysis: conotoxins cause nerve paralysis, nausea, speech difficulties, blue-ringed octopus . Doesn"t flash blue rings until it is spooked/scared - signals stay away from me, i"m toxic.
