Video: The Endocrine System

Biology 1, The Human Body, Video Lectures
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Internal control of the body is directed by two systems: 1, The Nervous System and 2, The Endocrine System. In this lecture, I discuss the endocrine system and how endocrine glands control functions in the body through the release of hormones. The pituitary gland is known as the Master Endocrine Gland and plays a major role in controlling the other glands of the endocrine system.

I illustrate HOW the endocrine system by giving specific examples such as insulin and Human Growth Hormone’s role in regulating blood sugar, and adrenaline’s role in preparing the body for stressful situations. Enjoy!

This is section 35.1 in the textbook Biology: The Dynamics of Life and is part of the chapter on The Digestive and Endocrine Systems.

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adrenal gland, adrenaline, Aldosterone, endocrine system, epinephrine, hormones, human growth hormone, hypothalamus, negative feedback systems, norepinephrine, parathyroid gland, parathyroid hormone, pituitary gland, thyroid gland

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  5. Hahaaa, I WISH!!! I've always wanted to visit Australia, so anytime you wanna send for me to fly over there and tutor you, I'm there. LOL. Anyways, glad you found this info valuable. All the best!

  8. I thought the Human Growth Hormone was mainly released into the bones & muscles??? & when we have low blood sugar glucagon is released by the pancreas to increase glucose in the blood???

  9. @purpleleach1 What you will notice with the different hormones is that they have multiple effects. Yes, they do affect bone and muscle growth. However, it also affects blood sugar levels, stimulates the immune system, causes protein synthesis and a number of other things. And yes, glucagon has the opposite affect of insulin. It causes an increase in blood glucose levels.

  10. What you will notice with the different hormones is that they have multiple effects. Yes, they do affect bone and muscle growth. However, it also affects blood sugar levels, stimulates the immune system, causes protein synthesis and a number of other things. And yes, glucagon has the opposite affect of insulin. It causes an increase in blood glucose levels.

  11. I thought the Human Growth Hormone was mainly released into the bones & muscles??? & when we have low blood sugar glucagon is released by the pancreas to increase glucose in the blood???

  12. What you will notice with the different hormones is that they have multiple effects. Yes, they do affect bone and muscle growth. However, it also affects blood sugar levels, stimulates the immune system, causes protein synthesis and a number of other things. And yes, glucagon has the opposite affect of insulin. It causes an increase in blood glucose levels.

  13. I wanted to thank you for having these videos on youtube. I’m taking a college course in Human Anatomy and Physiology and my instructor does not really “teach” it at all. She just writes out very vaguely what we need to know on the test, then we have to research it to really know the ins and outs about everything. Your videos have saved me! Nothing else explains biology in the way I can understand it like you do. Thank you, thank you, thank you!!!!!

  14. @jouwhoo You are very much welcome. I’m glad you are finding value in it and that it’s helping you to understand it better. Stay tuned, because there’s much more to come 🙂

  15. You are very much welcome. I’m glad you are finding value in it and that it’s helping you to understand it better. Stay tuned, because there’s much more to come 🙂

  16. I wanted to thank you for having these videos on youtube. I’m taking a college course in Human Anatomy and Physiology and my instructor does not really “teach” it at all. She just writes out very vaguely what we need to know on the test, then we have to research it to really know the ins and outs about everything. Your videos have saved me! Nothing else explains biology in the way I can understand it like you do. Thank you, thank you, thank you!!!!!

  17. You are very much welcome. I’m glad you are finding value in it and that it’s helping you to understand it better. Stay tuned, because there’s much more to come 🙂

  21. thank you so much for posting this video of the lecture, it really helped me out in understanding more about the endocrine system. thanks God Bless You

  26. thank you…very useful! but i thought the parathyroid glands released calcitonin and the thyroid released T3 and T4…

  27. @raheeg2008 Calcitonin is released by the thyroid gland (specifically the C cells). It was initially thought to be released by the parathyroid glands, but from what I understand, that was shown to be false. The thyroid does release t3 and t4. That’s correct!

  28. Calcitonin is released by the thyroid gland (specifically the C cells). It was initially thought to be released by the parathyroid glands, but from what I understand, that was shown to be false. The thyroid does release t3 and t4. That’s correct!

  29. Calcitonin is released by the thyroid gland (specifically the C cells). It was initially thought to be released by the parathyroid glands, but from what I understand, that was shown to be false. The thyroid does release t3 and t4. That’s correct!

  30. I was never happy with my Animal Phys lecturer. You have helped me with a lot of the basic steps for digestion. Now to remember all the hormones secreted by the Stomach G cells and Midgut!
    Thankyou very much. Will be looking to your videos as i continue my study to the final exam in a few days!

  31. I was never happy with my Animal Phys lecturer. You have helped me with a lot of the basic steps for digestion. Now to remember all the hormones secreted by the Stomach G cells and Midgut!
    Thankyou very much. Will be looking to your videos as i continue my study to the final exam in a few days!

  32. I was never happy with my Animal Phys lecturer. You have helped me with a lot of the basic steps for digestion. Now to remember all the hormones secreted by the Stomach G cells and Midgut!
    Thankyou very much. Will be looking to your videos as i continue my study to the final exam in a few days!

  35. Glad to know the videos are helping. All the best on your exam. Be sure to come back and let me know how it goes.

  39. I love your style of teaching, I understand more of everything now. You are awesome, you have God’s gift of explaining things to people! Will you please make a video about T3 and T4 thyroid hormones please.
    Thank you!

  40. Thanks for the feedback Inna,

    Glad you are finding value in the videos. I can’t take special requests at the moment because my schedule won’t allow for it, but stay tuned because more videos are coming.

    All the best!

  51. Hi, wonderful video. However, I believe near the end of the video, you switched the functions of Calcitonin and PTH. Can you please check it?

  52. I don’t remember what I said at the end of the video, but you can do some research to find out which is correct. Just do a google search!

  53. Thank you for this, was a great help for my revision. Have you ever thought of teaching in the UK? The university of Lincoln would benefit from a lecturer with your approach!

  54. Thank you for this, was a great help for my revision. Have you ever thought of teaching in the UK? The university of Lincoln would benefit from a lecturer with your approach!

  58. This video helped me pass my Anatomy and Physiology course for my Pre Hospital EMT-A Course as a premed, thank you so much!

  60. Thank you over and over and over and over. I wish you were my real teacher. I love your humour

  65. I wish that you went into more detail information. Like the names of the adrenal glands, and different disease that occur when hypo/hyper. Over all good video.

  66. Well done Leslie, your videos makes learning fun and interactive, I find myself joining in with your class frequently. It’s your one liners that I will remember during the test.

    Thanks for offering quality education, thats free

  68. thank you very much, you explain things very clearly, i am looking forward to more videos 😀

  70. Like others said, I wish you were my teacher! I learned action potentials from you and now the endocrine system. I think I’m going to watch these videos more often.

  72. Thank you! You’re endocrine lecture made it all click!! You are a great teacher!

  73. OMG this video REALLLLY HELPED ME OUT ALOT …this teacher is AWESOME Im so blessed to have come across this instructor and his teaching…THANK YOU SOOOOO MUCH FOR SHARING THIS VIDEO WITH THE WORLD YOU HAVE NO CLUE HOW YOUR VIDEO HELPS STUDENTS …THANK YOU …

  74. atlast understud d endocrine glands!!!…thnxxx a lott for suchh an amazing video..!!!…helped a lott..:):)..!!…lukin forward for more videos!!!…

  77. Thankyou very much for your very informative videos on youtube.you are a very good teacher.God bless you

  79. Hello,, i am i just checking, i can’t find ch 36 on the
    Nervous system… can you please help me. Thanks.

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