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Video: The Endocrine System

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.

Outline:

  • The Vital Nutrients
  • Calories and Metabolism
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Leslie Samuel is the creator of Interactive Biology. His mission is to use this site to Make Biology fun for people all over the world.

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82 Responses to “Video: The Endocrine System”

  1. slooolz April 28, 2010 at 10:17 am #

    this is a really helpful video thanks!

    • Leslie April 28, 2010 at 4:28 pm #

      You are very much welcome sloolz. Glad it can help.

  2. Leslie April 28, 2010 at 4:28 pm #

    You are very much welcome sloolz. Glad it can help.

  3. bio student May 26, 2010 at 7:04 am #

    omg wish u could tutor me here in Australia

  4. Leslie May 26, 2010 at 10:41 am #

    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!

  5. Mickaelle May 31, 2010 at 12:05 pm #

    I agree 1000 %, merci beaucoup Monsieur Samuel!

  6. Emily June 3, 2010 at 3:53 pm #

    Wow, I wish u could be my tutor in Australia too

  7. purpleleach1 February 13, 2011 at 11:48 am #

    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???

  8. InteractiveBiology February 13, 2011 at 1:16 pm #

    @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.

  9. InteractiveBiology February 13, 2011 at 1:16 pm #

    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. purpleleach1 February 13, 2011 at 4:48 pm #

    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???

  11. InteractiveBiology February 13, 2011 at 6:16 pm #

    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.

  12. jouwhoo February 14, 2011 at 3:45 pm #

    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!!!!!

  13. InteractiveBiology February 14, 2011 at 4:43 pm #

    @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 :)

  14. InteractiveBiology February 14, 2011 at 4:43 pm #

    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. jouwhoo February 14, 2011 at 8:45 pm #

    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!!!!!

  16. InteractiveBiology February 14, 2011 at 9:43 pm #

    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 :)

  17. francoise April 3, 2011 at 10:40 pm #

    Thxs

    • Leslie April 3, 2011 at 10:41 pm #

      You’re very much welcome Francoise :)

  18. PrincessaDeDios956 April 17, 2011 at 12:24 pm #

    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

  19. PrincessaDeDios956 April 17, 2011 at 4:24 pm #

    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

  20. InteractiveBiology April 17, 2011 at 8:09 pm #

    @PrincessaDeDios956 You are very much welcome. Glad it helped :)

  21. InteractiveBiology April 17, 2011 at 8:09 pm #

    You are very much welcome. Glad it helped :)

  22. InteractiveBiology April 18, 2011 at 12:09 am #

    You are very much welcome. Glad it helped :)

  23. raheeg2008 April 23, 2011 at 10:49 am #

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

  24. raheeg2008 April 23, 2011 at 2:49 pm #

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

  25. InteractiveBiology April 23, 2011 at 7:18 pm #

    @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!

  26. InteractiveBiology April 23, 2011 at 7:18 pm #

    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!

  27. InteractiveBiology April 23, 2011 at 11:18 pm #

    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. derbyaussie June 4, 2011 at 10:28 am #

    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!

  29. derbyaussie June 4, 2011 at 10:28 am #

    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!

  30. derbyaussie June 4, 2011 at 2:28 pm #

    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. InteractiveBiology June 4, 2011 at 9:19 pm #

    @derbyaussie 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.

  32. InteractiveBiology June 4, 2011 at 9:19 pm #

    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.

  33. InteractiveBiology June 5, 2011 at 1:19 am #

    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.

  34. cclayson84 January 10, 2012 at 2:35 pm #

    great video, thanks!

  35. cclayson84 January 10, 2012 at 2:35 pm #

    great video, thanks!

  36. cclayson84 January 10, 2012 at 7:35 pm #

    great video, thanks!

  37. Inna February 2, 2012 at 5:35 pm #

    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!

    • Leslie Samuel February 2, 2012 at 9:10 pm #

      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!

  38. Amberrluvssyouu February 16, 2012 at 10:01 pm #

    This video was so helpful! Thank you! you’re awesome!

  39. Amberrluvssyouu February 17, 2012 at 3:01 am #

    This video was so helpful! Thank you! you’re awesome!

  40. MyPiggy7 March 18, 2012 at 9:57 am #

    Babies

  41. MyPiggy7 March 18, 2012 at 1:57 pm #

    Babies

  42. Stroudy2512 April 9, 2012 at 11:44 pm #

    I LOVE YOUR VIDEOS :D

  43. Stroudy2512 April 10, 2012 at 3:44 am #

    I LOVE YOUR VIDEOS :D

  44. kozmy21 April 20, 2012 at 12:16 pm #

    page 960?!

  45. kozmy21 April 20, 2012 at 4:16 pm #

    page 960?!

  46. ArianHabibi458 April 26, 2012 at 1:34 am #

    Thanks for the video, you seem like a cool professor.

  47. ArianHabibi458 April 26, 2012 at 5:34 am #

    Thanks for the video, you seem like a cool professor.

  48. Bk May 5, 2012 at 6:52 pm #

    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?

    • Leslie Samuel May 7, 2012 at 5:03 pm #

      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!

  49. kangacub May 13, 2012 at 4:32 pm #

    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!

  50. kangacub May 13, 2012 at 4:32 pm #

    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!

  51. MizzEllingson May 22, 2012 at 8:34 pm #

    GREAT Video, Thank You for all the help!

  52. MizzEllingson May 22, 2012 at 8:34 pm #

    GREAT Video, Thank You for all the help!

  53. Tyler Donovan May 27, 2012 at 12:21 am #

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

  54. Tyler Donovan May 27, 2012 at 12:21 am #

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

  55. TheNightbeauty1 June 2, 2012 at 6:24 am #

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

  56. TheNightbeauty1 June 2, 2012 at 6:24 am #

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

  57. Riaz22B June 30, 2012 at 4:47 pm #

    is this O level videos posted by this channel?

  58. Riaz22B June 30, 2012 at 4:47 pm #

    is this O level videos posted by this channel?

  59. spyhunterx September 13, 2012 at 7:04 pm #

    OMG this prof is awesome !

  60. 16paramount September 20, 2012 at 3:28 am #

    Can you make a video for the Hormonal Stimulus? I really don’t understand it.

  61. Juliean October 11, 2012 at 5:48 pm #

    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.

  62. joshua heeraman November 7, 2012 at 2:29 pm #

    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

  63. Kade Pink January 10, 2013 at 10:30 pm #

    thank you so much . you are very very good teacher.

  64. KeysOfAmnesia January 24, 2013 at 9:29 pm #

    thank you very much, you explain things very clearly, i am looking forward to more videos :D

  65. mo jk January 26, 2013 at 2:47 am #

    i wish you were my teacher, i would be doing so better in bio.. haha

  66. DAHRealTrump February 6, 2013 at 6:23 am #

    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.

  67. hafsa hashmi February 26, 2013 at 10:15 pm #

    i wish you were ma teacher…….really great…..thanx alot.

  68. alexdustin88 March 1, 2013 at 1:24 am #

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

  69. SMILEYTV1000 March 4, 2013 at 12:35 pm #

    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 …

  70. anjana kumar March 12, 2013 at 1:01 am #

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

  71. Angelism98 April 3, 2013 at 8:38 pm #

    I wish you are my science teacher xD

  72. Heather Johnson April 17, 2013 at 1:51 pm #

    what a great video, I could listen to you all day!!

  73. Puja Duggal May 31, 2013 at 5:27 am #

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

  74. Mark Jones June 12, 2013 at 8:30 am #

    Love the way you explain things.. Not too fast not too slow..

  75. Gellis Jerome October 18, 2013 at 10:08 am #

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

  76. Alfred Mcallister October 21, 2013 at 1:02 pm #

    thanks so much for posting this for public viewing… helped out a lot

  77. hizhatt November 19, 2013 at 7:26 am #

    Thank you!

  78. Patricia Lyons March 6, 2014 at 12:36 am #

    Great presentation ,