Harlandale Independent School District Superintendent Rey Madrigal addresses the crowd during a ribbon cutting ceremony held for Bexar County's first school-based health center at Collier Elementary School, ...
Charcoal is known to effectively absorb and trap odors, but you will want to control the potential mess it can make. Place charcoal in a container with several holes poked in it, and leave it in an area that smells bad. Throw the entire assembly away when the scent is gone.
Olfaction or the sense of smell involves chemicals. The receptors for smell are the olfactory hair cells located on the roof of each nasal cavity in a path of cells called the olfactory epithelium or membrane. Odors or scents chemical vapors. Chemoreceptor cells (neurons) perceive the chemicals as they vaporize.he nervous system responds to external signals through nerve cells or nerve fibers (neurons). Surface and external. Receptors also feed signals into the system from the environment.