The Endocrine System, Overview, Animation
HTML-код
- Опубликовано: 4 ноя 2018
- (USMLE topics) Function of the endocrine system, mechanism of action of steroid and nonsteroid hormones, major endocrine organs, functions and negative feedback control. Purchase PDF (script of this video + images) here: www.alilamedicalmedia.com/-/g...
This video and other related videos (in HD) are available for instant download licensing here: www.alilamedicalmedia.com/-/g...
©Alila Medical Media. All rights reserved.
Voice by Ashley Fleming
Support us on Patreon and get FREE downloads and other great rewards: patreon.com/AlilaMedicalMedia/posts
All images/videos by Alila Medical Media are for information purposes ONLY and are NOT intended to replace professional medical advice, diagnosis or treatment. Always seek the advice of a qualified healthcare provider with any questions you may have regarding a medical condition.
The endocrine system is one of the two systems that are responsible for communication and integration between various body tissues, the other being the nervous system. Endocrine communication is achieved by means of chemical messengers called hormones. Hormones are produced in endocrine glands and secreted into the bloodstream to reach body tissues. A hormone can travel wherever the blood goes, but it can only affect cells that have receptors for it. These are called target cells. There are 2 major types of hormones: steroid hormones derived from cholesterol and are lipid-soluble; and non-steroid hormones derived from peptides or amino-acids and are water-soluble. Lipid-soluble steroid hormones can cross the cell membrane to bind to their receptors inside the cell, either in the cytoplasm or nucleus. Steroid hormone receptors are typically transcription factors. Upon forming, the hormone/receptor complex binds to specific DNA sequences to regulate gene expression, and thus mediating cellular response. On the other hand, water-soluble non-steroid hormones are unable to cross the lipid membrane and therefore must bind to receptors located on the surface of the cell. The binding triggers a cascade of events that leads to production of cAMP, a second messenger that is responsible for cellular response to hormone. It does so by changing enzyme activity or ion channel permeability.
Major endocrine glands include: the hypothalamus, pituitary gland, pineal gland, thyroid and parathyroid glands, thymus, adrenal gland, islets of the pancreas, and testes in men or ovaries in women. The endocrine system also includes hormone-secreting cells from other organs such as kidneys and intestine.
Except for the hypothalamus and the pituitary, different endocrine glands are involved in different, more or less independent, processes. For example, the pancreas produces insulin and glucagon that keep blood sugar levels in check; the parathyroid glands produce hormones that regulate calcium and phosphorus; thyroid hormones control metabolic rates; while the ovaries and testes are involved in reproductive functions. On the other hand, the hypothalamus and pituitary gland play a more central, integrative role. The hypothalamus is also part of the brain. It secretes several hormones, called neuro-hormones, which control the production of other hormones by the pituitary. Thus, the hypothalamus links the nervous system to the endocrine system. The pituitary is known as the master gland because it controls the functions of many other endocrine glands.
A major role of the endocrine system is to maintain the body’s stable internal conditions, or homeostasis, such as blood sugar levels or serum calcium levels. To do this, it utilizes negative feedback mechanisms, which work very much like a thermostat: the heater is on when the temperature is low, off when it’s high. For example, when blood glucose level is high, such as after a meal, glucose induces insulin release from the pancreas. Insulin helps body cells consume glucose, clearing it from the blood. Low blood glucose can no longer act on the pancreas, which now stops releasing insulin. Another example is the regulation of thyroid hormones levels which are induced by a pituitary hormone called thyroid-stimulating hormone, TSH. TSH, in turn, is under control of thyrotropin-releasing hormone, TRH, from the hypothalamus. When thyroid hormone levels are too high, they suppress the secretion of TSH and TRH, consequently inhibiting their own production.
Love this video? Check out our new A&P course, with more than 80 videos like this (no watermark), over 40 PDFs and hundreds of images:
For student: www.alilaacademy.com/courses/anatomy-and-physiology-for-students
For teachers: www.alilaacademy.com/courses/anatomy-and-physiology-for-teachers
Learning about Huma body mean I think 🤔 ..........imagine how God is great.
Human body is really interesting...
Yup the more we look the more we get.... Kind of thing.
.
Makes me erect
U'll probably also like other creatures
SubhanAllah
Thank you for making this video, this video really helped me understand the anatomy and physiology of the endocrine system, starting from the internal structures of the endocrine system, and the main role of the endocrine system.
This video is very helpful for us to learn, especially since there are interesting and easy-to-understand explanatory pictures about the endocrine system.
Thank you...
In this video, the explanation is quite clear and the way it is described is quite interesting so that can make it easier for the viewer to know about the endocrine system
thank you, this video really helped me learn about the endocrine system and the function of the organs contained in the endocrine system
You are completely smart to put something like this on youtube.thank you
Thank you for making this video, helping summarize the big picture of how it happened the endocrine system
Very grateful. This video really helped me to learn about the Endocrine System. especially the basics of the anatomy of the Endocrine System.
this video about the endocrine system is very thorough and very good with the pictures in it, thank you
Thank you for this video, this video really helped me in understanding how the endocrine system functions, and how the endocrine system works.
this video is short and very clear, this material is so much easier to understand
from the video it is very easy to understand and very detailed when explained from the video
Thank you for making me know more about the endocrine system!
thanks for the makinh video. explains the hormones in the endocrine system, the main role, the main endocrine glands
thank you for this video, the explanation is quite clear and interesting and easy to understand about the endocrine system
I've watched this video, it's very easy to understand, and I can know about the endocrine system, and I will continue to watch to understand this, thank you very much
This video really helps me to understand the endocrine system thank you
Thank you, the explanation in this video is quite clear and I can know more about the endocrine system.
I've watched materials on endocrine, this video is very good and helfpul, thank you
Thank you for the explanation about the Endocrine System, this video is very helpful.
The endocrine system is one of two systems responsible for communication and integration between various body tissues, in addition to the nervous system. Endocrine communication is achieved through chemical messengers called hormones. Hormones are produced in the endocrine glands and secreted into the bloodstream to reach body tissues. A hormone can move wherever the blood flows, but can only affect cells that have receptors for it are called target cells.
thanks for the knowledge🙏
I sort remember this but watching videos like this for my exam I will take soon, makes a great review.
thank you,, the video is clear,, short and easy to understand
Thank you this adds to my knowledge
thank you for video, the video is very good and understandable. i watched materials on endocrine sistem
Very informative. Thanks.
thank you this video helped me to understand the material easier
Thank you for making this video
This is extremely easy whit subtitles. tank you
With this video I get new knowloedget that is very useful gir understanding the endocrine system more easily
I was given the task by my lecturer to watch this, the video is very useful and can add insight. thanks
with this video I get new knowledge that is very useful
Thank you for uploading it.
This video makes it easier for me to learn about the endocrine system
I have watched this video and I can also know about the endocrine system, and I will continue to watch to understand this, thank you very much
this video is very useful explaining the parts of the endocrine system and is very good to understand, thank you very much
This is really great
Thank you this video has added to my inslight
thank you for the video, you can understand enough about how the endocrine system works
very nice and helpful to make understand
thank you the video is very useful and can add inslight
thank you for making this video. this is very helpful!
thank you this video really helped me to better understand what the endocrine system is, the video is very short and clear and easy to understand..
I was given the task by my lecturer to watch this video. This video is very useful and educational for me
I’m so grateful
Thanks, this video really helped me learn abt the endocrine system
thank you for making this video, very helpful to learn about the endocrine system...
I was given the task by my lecturer to watch this video, the video is very useful and can add insight
Thank you so helpful 💯
best videos for learning, thank you so much!
best videos for learning thanks you
This Vidio makes it easy for me to learn the endocrine system
thank you for the video, now I understand what the endocrine system is and what cells are in the endocrine system
this vidio really helps to me understand the endocrine system, THANK YOU!
I watched this on command, and its turn out the video very helpful. Thank u
Thank you for making this video , very helful to learn about the endocrine system
thank you with this video I can understand what the endocrine system is
thank you for the learning media through this video it is very useful for me to understand what is the anatomy and physiology of the endocrine system and it is very easy to understand
I love her voice I wish she did more and full lectures on this topic & other science topics
thanks for the educational video🙏
this video can help me to know how the endocrine system works and what glands are in the endocrine system , thank you
thanks for the video very helpful
Thank you for making this video, the explanation is quite clear and easy to understand and can be used as a learning medium for me about the endocrine system
thank you for making this video, because of this video I can see the shape, size and color of hormones and other living things in the human body
thank you this video is very helpful
thanks for make this video, endocrine subjects are very difficult but i can understand a little of what they're talking
Thank you, the video is very useful and can add insight into anatomy
thank you this video is so helpful to understand about endocrine system
This video is very useful and explains the parts of the endocrine system so well that they can be understood
Ouu waoo
I have done it
I've looked at the endocrine system material, and I'm still a bit clueless. but the videos and photos in it are interesting so it helps to understand
I've watched this video, this video really helps us to know about the endocrine system
Thank you
It is very helpful thank you
Thank you this video is verry good, cool and really adds to my insight in the endocrine system
Thank you so much for the video, it was really helpful for me
Army💜
thank you so much short yet very informative
I've watched materials on endocrine, this video is very good and helpful, thank you
Awesome content
From then video it very easy to undenrst and very detarled when explainned from the video 🙏👍
Thank you! 🫶🌺
I have watched this video and thank you this video has helped me to explain about the system.
thank you, this video is very good to know, in this video I can understand the types of hormones and how they work, and in this video there is also an explanation of the main endocrine in men and women ,,
this video is very very useful, in this video the explanation is very clear and can be used as a learning medium for me🙏🏻
thank you this video is very helpful to understand about the endocrine system
thank u for making this video
thanks this video is very useful
Thank you!!
beautiful. thank u
wow !! thankyou this video has helped me
Very helpful.thank u very much
thank you for making this video because it is easy to understand for students who are studying this material
with this learning content video it makes me understand the material of the endocrine system
Terimakssih video ini telah membantu saya
thanks for the video, very useful knowledge 🙏
Thank u after i look video i can now about endocrinsystem
Love this! thanks sm
Thank you very much, the content is very useful. Can be used as a medium of learning for me🥰
Plz make detail video about endocrine system and how to regulate (tips) of major glands hormone
Wow, the video is very good to watch, you explain the video very easily to understand, thank you very much for the video explanation, I really like this video!
Thank you for making this video! this video is very good and helpful for studying, thank you!