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Types of Sensory Receptors – Sensory Processing (PSY, BIO)

by Tarry Ahuja, MD
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    Now I just kind of alluded to all these different types of receptors. These are all called sensory receptors and they’re all designed to detect one sensory modality. So in English, we’re saying one type of sense. And you know, you’ve all heard that we have so many different senses, five senses, ten senses. The reality is, there’s lots of senses. There are some that kind of bubble to the top that are quite common. So we’ll highlight some of those. One is a mechanoreceptor. So an example would be the auditory hair cells. We have little hair cells at our inner ear. The term mechano refers to the fact that mechanical stimulation or movement of these cells will activate them. So if you want to look at the chapter about the ear and auditory function, we’ll align this little bit more detail. But for now, these little hair cells are in your ear and this fluid-filled canal, the sound gets carried in. It causes a wave of movement which moves the auditory hair cells and that movement actually initiates an electrical signal. And that electrical signal then goes on and gets processed up by our brain which is how we actually hear. So chemoreception is another one. And two examples here are the olfactory receptors which detect molecules in air, airborne molecules and allow us to smell. We have the taste receptors and this detect chemicals on your tongue over the mucus membrane. This nociception refers to pain. There’s thermoreceptor which respond to temperature and that’s found in the dermal layer of your skin. Photoreceptors which are found in the rod and cone of your eye. We have a whole lecture on the eyes as well. So you can see, there’s a lot. There are a lot of senses...

    About the Lecture

    The lecture Types of Sensory Receptors – Sensory Processing (PSY, BIO) by Tarry Ahuja, MD is from the course Sensing the Environment.


    Included Quiz Questions

    1. Mechanical movement of auditory hair cells
    2. Vibratory movement of outer hair cells
    3. Action potential of hair cells
    4. Signal transduction via the auditory nerve
    5. Sound amplification by outer hair cells
    1. Gustatory Receptor
    2. Baroreceptor
    3. Osmoreceptor
    4. Visceroreceptor
    5. Golgi tendon receptor
    1. Nociceptors located in the dermal layer
    2. Olfactory chemoreceptors detecting caustic chemicals
    3. Thermoreceptors located in dermal layer detecting heat
    4. Cutaneous mechanoreceptor detecting deep touch
    5. Rods and cones

    Author of lecture Types of Sensory Receptors – Sensory Processing (PSY, BIO)

     Tarry Ahuja, MD

    Tarry Ahuja, MD


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