Brown Recluse Spider Venom Characteristics

The brown recluse spider's venom is cytotoxic, which is a fancy way of saying it is "toxic to cells." To clear up any confusion, here is a simplified breakdown:

Q17

Think of the word in two parts: Cyto (cell) and Toxic (poison). The venom acts like a localized poison that kills the cells right where the spider bit you. This causes the skin and muscle to die, which is called necrosis.

Why the other options are wrong:

1. Destroys red blood cells: While some venoms travel through the blood to pop red blood cells (hemolysis), the brown recluse venom stays mostly in the tissue around the bite. It doesn't hunt down your blood cells.

2. Suppresses the respiratory drive: This would be a neurotoxin, like the venom from a Black Widow. Those attack the nerves that control your breathing. A brown recluse doesn't affect your lungs or brain.

3. Weakens bone structure: Venom is designed to work on soft tissues like skin and fat. It has no effect on the hard structure of your bones.

Mnemonic to Remember: B-R-O-W-N

Use the letters in the word BROWN to remember