WHEN you put your bitten hands above your heart and CNS the venous drainage into the heart increases why this doesn't cause tranmission of the venom of insect that bit your hands?

Answer 1

When you put your bitten hands above your heart and central nervous system (CNS), the increased venous drainage into the heart refers to the increased blood flow from the hands towards the heart. This phenomenon is due to the effect of gravity, as putting the hands above the heart allows for easier blood flow in the venous system.

However, the transmission of venom from an insect bite primarily occurs through the injection of venom into the tissues rather than through the bloodstream. Insects inject venom using specialized structures such as stingers or fangs. The venom is usually injected directly into the skin or tissues, bypassing the bloodstream.

So, even if the venous drainage towards the heart increases, it does not significantly affect the transmission of venom from an insect bite. The venom is more likely to spread locally in the tissues around the bite site rather than entering the bloodstream and affecting the heart or CNS.