SENSORY ORGANS ANATOMY. 1  Sensory organs are very highly developed and specialized organs that are an extension of the central nervous system, with a sole function to take in information and relate it to the brain. The sensory neurons are highly adapted to detect changes of both external and internal changes in the environment and report these changes to the brain.
If you break a mercury thermometer or light bulb, a small amount of liquid mercury may spill out. Liquid mercury can separate into small beads, which can roll some distance away. The mercury may also evaporate into vapour. However, this small amount of mercury is extremely unlikely to cause problems for your health.
Exposure to mercury can occur when people handle or play with the liquid metal, or when a measuring device breaks and mercury beads scatter onto floors or other surfaces. Spilled mercury is very hard to clean up, especially if it rolls into cracks and crevices, or if it is on fabric, upholstery or other porous material.n general, you can clean up a small mercury spill yourself, such as from a fever thermometer or thermostat. This fact sheet provides a step-by-step guide on pages 3-4 on how to do the cleanup.