episode28

028 The Thalamus and Hypothalamus

Leslie Samuel Human Anatomy, IBTV, Nervous System, Physiology, The Nervous System 40 Comments

In this video, Leslie explains about the thalamus and the hypothalamus, and the specific functions that they are responsible for.

Enjoy!

Transcript of Today’s Episode

Hello and welcome to another episode of Interactive Biology TV, where we’re making biology fun! My name is Leslie Samuel. In this episode, Episode 28, I’m going to talk about the thalamus and hypothalamus. Let’s get right into it.

Here we have the human brain, and before, we looked at this and we saw that we have the spinal cord that enters the cranium, and as soon as it enters the cranium, we have the brain, which is all of this here. We spoke about the brain stem already, we spoke about the cerebellum, we spoke about the cerebrum. What we’re going to talk about today is the hypothalamus and the thalamus. How I’m going to do that, I’m going to take this area here and show it on a different picture that we can look at in little more detail. So I’m taking that area, and that is what we’re looking at right now.

Here, as you can see, we have this region here that’s called the thalamus, and then right beneath that, we have the hypothalamus. So these are the 2 areas that we’re going to talk about today. What we’re going to do is we’re just going to look at the functions of those 2 areas.

First we have the thalamus, and the thalamus is kind of like a regulatory gateway. The reason I say that is almost all of the sensory input that comes into the brain goes through the thalamus, and the motor output goes via the thalamus to the rest of your body. So it brings stuff into the brain, and this is the gateway that kind of regulates what comes in and what goes out. That’s the function of the thalamus.

The hypothalamus, and if you look at what this really means, “hypo” means under, and “thalamus”, of course that’s the thalamus, so this is right beneath the thalamus. This is involved in functions including homeostasis, emotion, thirst, hunger, circadian rhythms, and control of the autonomic nervous system. The autonomic nervous system involves those processes that you don’t have to think about. Regulating your heart rate and your breathing rate and so on, those are autonomic processes. This is, in some ways, controlled by the hypothalamus.

So there we have it, the thalamus and the hypothalamus. As we go into some of the other things that we’re going to talk about in later episodes, you’re going to see how some of this comes together and we’re going to paint a bigger picture of how the brain and the nervous system works. That’s it for this video, and I’ll see you in the next one.

Comments 40

    1. Post
      Author
      Leslie

      Hi Shannon,

      Thanks so much for your feedback. I’ve actually finished the Nervous System series for now because I’m trying to get to many other topics. It’s possible that I will revisit the topic in the future, but for right now, the entire nervous system series is 40 Videos. Hope you still continue to find value in all the content though.

      Thanks for checking out the videos and All the best!

  1. Keyla

    i love the way you make your videos so interesting and FUN! it just makes me want to keep learning. Its my second semester in college, persuing a associates in nursing, and your videos really help me out a lot.

    Thank you for the time you dedicate to us…
    Your new friend Keyla :)

    1. Post
      Author
      Lrsamuel

      Glad to know you are finding the videos interesting and FUN. You are very much welcome. Hope you continue to find a massive amount of value in the videos to come.

  2. rotobracca

    I thank you soooo much for the brain series of videos, khan videos is lacking these BADLY and i’ve only found your set of videos which are actually usable to revise for my test on! :D

  3. rotobracca

    I thank you soooo much for the brain series of videos, khan videos is lacking these BADLY and i’ve only found your set of videos which are actually usable to revise for my test on! :D

  4. rotobracca

    I thank you soooo much for the brain series of videos, khan videos is lacking these BADLY and i’ve only found your set of videos which are actually usable to revise for my test on! :D

  5. Mindstomper187

    dude, i noticed you missed the brain stem in the first picture (called it spinal cord), i might be wrong but, that’s the exact place of where the brain stem is.. (just somethin i noticed)

  6. Mindstomper187

    dude, i noticed you missed the brain stem in the first picture (called it spinal cord), i might be wrong but, that’s the exact place of where the brain stem is.. (just somethin i noticed)

  7. Kev80ification

    You’re videos are really really helping me get a solid grasp on the various parts of the brain and there influence on behaviour. THANK YOU! ! Kevin, from Ireland. : )

  8. Asaimma

    Man, you are not just good but actually have the gift of a real teacher – one who imparts knowledge for the pleasure it brings oneself!
    It’s a real pity you don’t do some serious teaching in neuroanatomy. I’m in mid 50’s, a doctor and trying to catch up with all the stuff I learned in my late adolescence and have now forgotten.
    In keeping up with the various branches of the neurosciences, a good clean explanation of the basics helps, especially by someone with your natural abilities.
    In the meantime, thank you sir, for your generous and excellent contributions to the learners out there!

    1. Post
      Author
      Leslie Samuel

      Thanks Asaimma,

      Glad to know you are enjoying the videos. I do plan on getting seriously into some neuroanatomy videos, but that will be later on – Once I get through regular human anatomy.

      All the best!

  9. Naomi

    Absolutely amazing stuff, it’s a shame I did not notice your website a long time ago, but I will be constantly using your lectures for my revision in the future.

    I shall be forwarding your site to all my peers so they also can benefit from these short but very informative material.

    Many thanks

  10. gangsta gaza

    gangsta gaza wrote on this never, gangstagaza only know your brain peace to hoes don’t go off Madd gaza know your intermuscular forebrain system never your tha man never don

  11. Hudson Matz

    it is, but he said the hypothalamus is responsible for the Rythm of the heart beat and the breathing rate. The medulla controls thing that you would do unconciously, like breathing, beating your heart, walking and other things. (anyone can revise what i just said because im not 100% sure)

  12. Ray

    Great vids, just wish the brain videos contained a little more information because the way you explain things are amazing! Thank you!!!

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