Take an Online Hearing Test here. With this online hearing test you can find out if you may have problems with your hearing. This online hearing test assesses how good you are at hearing numbers in noisy environments. The test is not a real hearing test which can determine whether you need hearing aids. The online hearing test can only determine whether you could possibly have problems with your hearing.
In vertebrates, the olfactory receptors are located in both the cilia and synapses of the olfactory sensory neurons and in the epithelium of the human airway.In insects, olfactory receptors are located on the antennae and other chemosensory organs.ctivated olfactory receptors are the initial player in a signal transduction cascade which ultimately produces a nerve impulse which is transmitted to the brain.
The olfactory (smell) receptors and the olfactory bulb are located deep in the nasal passages. The olfactory receptors lie in two small patches on the roof of each nasal passage. Figure 14 shows a cross section of the nose. The receptors are stimulated by specific molecules, which initiate impulses to the brain.