We always say that arteries have more muscular walls than veins, but what does that really mean? Let's have a look down the microscope. Music: Disco 93 by Gregory David www.epidemicsound.com/track/Y...
Hello Dr. Sam At the start I want to thank you very much for all of your efforts I remember finding your channel around five years ago before starting my med school , I remember being clueless about anatomy but after finding your channel and using books I learned little by little , I was always interested in anatomy since I was a kid but I think after studying it with you I became passionate about mastering it , you made way too many anatomy videos which was not an easy task to do and I can say that I almost watched most of them also sometimes I repeat some funny great videos (e.g peritoneum) , a point I should mention is the quality of your videos every time it gets better and better , you covered gross anatomy in such a great way and now it is the histology's turn and I will be watching it to understand it more because you are already showing such a great quality and showing slides while commenting , finally I want to say that you have great ideas and an enjoyable way of teaching . Sorry if I forgot to mention something but I improvised this message Again I want to thank you for everything you taught me and wish you good luck As you always say "Anatomy is fun" , till another time see ya . By :Mohammed Awad Elkarim Elsiddig
Dear Dr. Webster, thank you for the extraordinary teaching you share with us in all of your videos. I am always alert for when you have a new anatomy video or a new vlog. Since you are teaching us about histology here, I wonder whether you would include some information at bruises: contusions, hematomas, blood clots, and related events. Thank you very much!
Page Title Histology of arteries and veins Source URL ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-0euerYn2-04.html Summary - 00:20 Observing a thin section of an artery and vein under a microscope - 00:48 Blood vessels composed of various tissue types - 01:51 Examining the structure of endothelial cells lining the blood vessel - 03:04 Muscular walls of arteries and veins and their functions - 03:47 Importance of endothelial cells in preventing blood clotting - 04:20 Role of smooth muscle cells in regulating blood flow - 05:06 Smooth muscle cells responsible for vasodilation and vasoconstriction - 06:53 Layers of blood vessels: Tunica intima, Tunica media, and Tunica adventitia - 08:39 Veins receive blood after passing through capillary beds with lower pressure. - 08:51 Vasoconstriction and vasodilation are less common in veins. - 09:24 Arteries have multiple layers of tunica media compared to veins. - 09:38 Both arteries and veins have tunica externa for structural support. - 10:02 Tunica externa in arteries and veins provides connective tissue support. - 10:33 Histologically, blood vessels show cells in the lumen. - 11:05 Identifying arteries and veins in small intestine sections. - 12:05 Large blood vessels have vasa vasorum for nutrient supply. - 12:33 Arteries and veins often run together, distinguished by shape and layers. - 14:03 Histological features of blood vessels include endothelium and smooth muscle. - 15:42 Observing lymphatic vessels with valves and missing tunica media. - 16:16 Lymphatic vessels play a role in fat transport and have valves for flow control. - 16:53 Arteries and veins exhibit differences compared to nearby lymphatic vessels. - 17:00 Distinct features like valves differentiate arteries and veins from lymphatic vessels. - 17:31 Lymphatic flow operates at a very low pressure. - 17:40 Muscular walls and peristaltic movements aid in lymphatic fluid circulation. - 17:56 Lymphatic fluid gradually returns to the venous system through pressure changes. - 18:25 Histologically, arteries and venules display unique characteristics. - 18:37 Arteries are known for muscular walls, while veins have less muscle in their structure. - 18:43 Microscopic examination reveals the structural differences between arteries and veins. - 18:50 Understanding the layers of arteries and veins under the microscope can enhance comprehension. - 18:55 The discussion concludes, offering insights into arterial and venous structures. - 18:59 [Music Context Blood vessels, the intricate network responsible for transporting blood and lymph throughout the body, are a cornerstone of human anatomy and physiology. Understanding their structure is crucial for grasping their functions within the cardiovascular system. Arteries, veins, and lymphatic vessels each possess distinct histological features that contribute to their specialized roles. Endothelial cells, lining the interior of blood vessels, are pivotal in maintaining vascular health by regulating permeability and signaling processes. Smooth muscle cells within vessel walls play a key role in controlling blood flow and vessel tone through vasoconstriction or vasodilation. The layers of tissue comprising the walls of blood vessels-tunica intima, tunica media, and tunica adventitia-provide structural support essential for proper function. Advancements in microscopy have revolutionized our ability to study these vital structures at a microscopic level. Recent research continues to shed light on how aging, disease processes, and lifestyle factors impact blood vessel integrity. By delving into histological details of blood vessels, researchers aim to identify potential therapeutic targets for various vascular conditions. Looking ahead, further technological innovations hold promise for even deeper insights into vascular biology at molecular levels. Integrating histological data with other omics technologies may offer a more comprehensive understanding of how these intricate systems operate in health and disease contexts-a step towards developing targeted therapies that could revolutionize treatment approaches in the future. Learn More - www.kenhub.com/en/library/anatomy/histology-of-the-vascular-network Blood vessels: Histology and clinical aspects | Kenhub Venule (histological slide) Additionally, veins have wider lumen, which translate to them accommodating lower blood pressure than arteries.There are more veins in the circulatory system than there are arteries; and are loosely classified as small, medium and large veins. Another distinct feature of most veins (except the venae cavae, visceral organs and the central nervous system) is that they ... - my.clevelandclinic.org/health/body/21640-blood-vessels Blood Vessels: Types, Anatomy, Function & Conditions - Cleveland Clinic The blood supplies them with the oxygen and nutrients they need to function. Blood vessels also carry waste products and carbon dioxide away from your organs and tissues. Each type of blood vessel serves a different function: Arteries: These strong, muscular blood vessels carry oxygen-rich blood from your heart to your body. They handle a large ... - www.ncbi.nlm.nih.gov/books/NBK470401/ Anatomy, Blood Vessels - StatPearls - NCBI Bookshelf Structure and Function. Vessels transport nutrients to organs/tissues and to transport wastes away from organs/tissues in the blood. A primary purpose and significant role of the vasculature is its participation in oxygenating the body. Deoxygenated blood from the peripheral veins is transported back to the heart from capillaries, to venules, to veins, to the right side of the heart, and then ... Counterarguments In examining the discourse on blood vessel anatomy and histology, it becomes apparent that while the detailed descriptions of arterial, venous, and lymphatic structures are informative, there is a notable absence of broader contextualization. The narrative could be enriched by linking these structural nuances to their functional implications within the human body. By exploring how these anatomical variances influence physiological processes like blood flow regulation, nutrient exchange, or immune response, a more comprehensive understanding could be achieved. Moreover, delving deeper into the dynamic nature of blood vessels and their responses to various stimuli or pathologies would provide a more holistic perspective on vascular biology. Furthermore, while the discussion briefly touches upon key concepts such as smooth muscle cell regulation of vasodilation and vasoconstriction or endothelial cell functions in preventing clotting, there remains an opportunity for greater depth in elucidating these mechanisms. Expanding on the intricate regulatory pathways involved in vascular tone modulation or detailing how endothelial cells interact with coagulation factors could enhance comprehension significantly. Additionally, incorporating comparative analyses between different vessel types and exploring evolutionary perspectives on vascular adaptations would offer valuable insights into the complexities of blood vessel biology. Embracing these suggestions could elevate discussions on blood vessel anatomy from mere description to a more nuanced exploration of their physiological significance.
SRP inhibits inflammation and oxidative stress through the endothelium MCP-1. We concluded that SRP has the ability to modulate vascular inflammation. Further studies will be required to explore the detailed mechanisms of the cardio-protective effects produced by SRP.Mar 8, 2023 5. Conclusions In conclusion, our work demonstrates that SRP can attenuate the elevated inflammatory biomarkers (MCP-1, IL-2, IL-4, IL-6, and TNF-α), the production of MDA, ROS intensity, CATx, and GSH impact in the setting of LPS-induced vascular inflammation. SRP inhibits inflammation and oxidative stress through the endothelium MCP-1. We concluded that SRP has the ability to modulate vascular inflammation. Further studies will be required to explore the detailed mechanisms of the cardio-protective effects produced by SRP. These results suggest that serratiopeptidase may be a therapeutic agent for vascular inflammation in cardiovascular diseases.
