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.
In my clinical experience the ear thermometer often gives a false reading, especially if a child has a very bad ear infection, Walker tells WebMD. A lot of parents are uncomfortable taking rectal temperatures, but I still feel that they are the best way to get an accurate reading.. The American Academy of Pediatrics (AAP) recently advised parents to stop using glass mercury thermometers because of concerns about mercury exposure.