episode29

029 A General Overview of How Senses Work

Leslie Samuel IBTV, Physiology, Sense Organs, The Nervous System 29 Comments

In this video, Leslie explains the general mechanism of how senses work.

Enjoy!

Transcript of Today’s Episode

Hello and welcome to another episode on Interactive Biology TV, where we’re making biology fun! My name is Leslie Samuel. In this episode, Episode 29, I’m going to be giving a general overview of how senses work. So let’s get right into it.

We all know about the 5 senses. We have the sense of taste, smell, touch, hearing, and sight. I’m going to get into some more details, specifically with hearing and sight in future episodes, but for today, I just want to give a framework on which we’re going to base what we’re going to be talking about in the future episodes. So this is how senses work.

We’re going to start with receptors, and these receptors are going to get stimulated. When they are stimulated, they’re going to send signals to the brain. When the brain receives those signals, the brain is going to interpret the signals, and it’s basically going to tell you what the senses are. So if you smell a perfume, it’s because the receptors are stimulated, sending signals to the brain, and the brain interprets that as a beautiful scent or an aromatic scent or however you want to call that. So once again, the receptors get stimulated, signals get sent to the brain, and then the brain interprets those signals.

Let’s look specifically at how this happens in the eye. In the eye, we have the retina. In the retina, we have receptors that we call rods and cones. You can see these receptors right here. When those receptors get stimulated, they’re going to cause a signal that goes via a number of different types of cells, and then it goes via a nerve to the brain. Then the brain is going to interpret that, and you’re going to see the person that’s standing in front of you or whatever it is you’re looking at. You’re going to see that as a result of receptors getting stimulated over here, and then you have a nerve that sends a signal to the brain, and then the brain interprets that signal.

This is the same process for touch. This is the same process for smell and the other senses. Receptors get stimulated, and then that sends signals to the brain, and the brain interprets that signal. That’s really all I want to talk about in this video. It’s not a lot of detail, but trust me, we’re going to start filling in those details in later episodes. We’re going to talk specifically about vision and hearing. That’s it for this video, and I’ll see you in the next one.

Comments 29

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  1. Soglg

    I just want to thank you for all your wonderful videos. I am taking a University neuroscience class and your videos have helped me to understand the “whole picture” of different systems amazingly well. You are a life-saver and just want to say keep on doing what you’re doing – you are a fantastic resource.
    Sally

  2. Soglg

    I just want to thank you for all your wonderful videos. I am taking a University neuroscience class and your videos have helped me to understand the “whole picture” of different systems amazingly well. You are a life-saver and just want to say keep on doing what you’re doing – you are a fantastic resource.
    Sally

  3. InteractiveBiology

    Thank you very much. I’m so glad to know that the videos are helping you out as much as they are. That gives me encouragement to keep on making them :)

  4. leklekpsych

    Your videos are very helpful. I’m teaching Psychology and your videos help me understand the lessons better and are of big help to my students as well. Thank you so much!

  5. InteractiveBiology

    You are very welcome! :) Glad that we are able to help. Please stay tuned.We have more Biology videos to be uploaded soon!

  6. Pingback: 7 senses and An Introduction to Sensory Receptors | Interactive Biology, by Leslie Samuel

  7. dinesh veera

    i donnot know how you get so deep imagination of human body bbut these grest. i say its give me a great sense about myself

  8. Emma N

    Thank you so much for these videos! They are so helpful!

    I’m studying for my first biology and psychology university exams at the moment- and watching these videos has given me so much more confidence :) Thank you thank you thank you

  9. Simaisan

    It would be cool to add subtitles for these videos. It would help people who struggle with english and allow deaf persons to access to the content.

  10. pankaj

    hello sir ur videos are of immense use and helpful for our studies.dats why i want know that can we download it and how can.

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