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📌 𝐅𝐨𝐥𝐥𝐨𝐰 𝐨𝐧 𝐈𝐧𝐬𝐭𝐚𝐠𝐫𝐚𝐦:- 🤍 📌𝗝𝗼𝗶𝗻 𝗢𝘂𝗿 𝗧𝗲𝗹𝗲𝗴𝗿𝗮𝗺 𝗖𝗵𝗮𝗻𝗻𝗲𝗹 𝗛𝗲𝗿𝗲:- 🤍 📌𝗦𝘂𝗯𝘀𝗰𝗿𝗶𝗯𝗲 𝗧𝗼 𝗠𝘆 𝗠𝗮𝗶𝗹𝗶𝗻𝗴 𝗟𝗶𝘀𝘁:- 🤍 Histology of Bone ( Spongy bone): Shotgun Histology Types of the bone marrow - Bone marrow lacks the rigidity of the surrounding bone. Instead, it is a jelly-like substance that fills the cavity left by the trabecular network of bone. Bone marrow accounts for about 4 – 5% of the total body weight of an individual. Although it can be considered a “light-weight” system, the bone marrow does a lot of heavy lifting, as it is responsible for producing platelets, lymphocytes, erythrocytes, granulocytes, and monocytes. Marrow has two principal functions; one is to produce blood cells and the other is to store fat. As a result, there are two types of marrow found in the body: the highly vascular red marrow which is haematopoietically active, and the fat rich yellow marrow that has significantly less haematopoietic centres and more adipocytes. Red bone marrow Clusters of haematopoietic cells known as haematopoietic islands are widely distributed throughout the loose connective tissue network observed in red marrow. These islands are found next to relatively large, yet thin walled, sinusoids that also communicate with nutrient vessels of the bone. The sinusoids are situated at a central part of a roundabout circulation such that the nutrient arteries that leave the nutrient canals to supply the bones anastomose in the bone marrow and subsequently terminate in arterioles that coalesce to form the sinusoids. The sinusoids then drain to significantly larger veins that form nutrient veins, which then leave the bone via the same nutrient canals that the arteries enter by. Red marrow is most abundant in all skeletal structures from intrauterine life up until around the 5th year of life. As time progresses, red marrow is restricted to the central flat bones (i.e. cranial bones, clavicle, sternum, ribs, scapula, vertebrae, and pelvis) and the proximal ends of the proximal long bones of the upper and lower limbs. The supporting substance that supports the haematopoietic and adipocyte cells in the marrow is made up of reticulin. This is a fine type III collagen that is produced by mesenchyme derived reticular cells (fibroblast-like cells). Other housekeeping cells like macrophages exist in the stroma and facilitate haematopoiesis by phagocytosing cellular debris generated from the process. Yellow bone marrow = Depending on the age and haematological demand of an individual, the reticular cells become swollen as a result of increased lipid uptake. Subsequently, yellow marrow is formed. It contains mainly supportive connective tissue that provides scaffolding for the neurovascular structures that traverse the cavitation. There are also numerous adipocytes in addition to very few dormant haematopoietic clusters. These latent haematopoietic centres can be reactivated in the event of an increase demand for red blood cells. #histologyofspongybone #spongybone #bonehistology #spongybonehistology #histology #shotgunhistology
Spongy bone/Cancellous bone/Trabecular bone | In 3 minutes! 0:00 - Intro 0:03 - Cortical:Cancellous - 80:20 00:20 - Spaces house red marrow! 01:02 - Location of spongy bone - ends of long bone, vertebral body, skull 01:47 - Weight transmission 02:13 - High metabolic activity, turnover and remodelling Skull base foramina 👉 : 🤍 Cranial fossa 👉: 🤍 Medial Longitudinal Fasciculus simplified! 👉: 🤍 Inter-Nuclear Ophthalmoplegia and More! 👉: 🤍 Orientation of the heart chambers! 👉:🤍
✔ 🤍 ✔ 🤍 ✔ Ask questions here: 🤍 Follow us: ▶ Facebook: 🤍 ▶ Review Us: 🤍 Bone tissue types • There are two types of bone tissue: compact and spongy. • All the bones of the skeleton have both kinds of bone tissue. • Compact (dense) bone • Arranged in osteons (Haversian systems), units of lamellae laid down in adjoining series of concentric rings. • Protective and supportive along the horizontal axis. • Found in areas that need strength. • Spongy (cancellous) bone • Lamellae arranged in branching columns called trabeculae. • Spaces between trabeculae are filled with either red or yellow marrow. • Found in areas where stress is applied from many directions such as the epiphyses of long bones and the bones of the skull.
They fill the inner layer of most bones such as the vertebrae. ... 1.Compact and spongy bones are the two main types of osseous tissues. 2.Compact bone is also called cortical bone while spongy bone is also called cancellous bone. 3.Compact bones are made of osteons while spongy bones are made of trabeculae.On the basis of the nature of the matrix present, bones are classified into two types: They are spongy bone and compact bone. Compact bone or Dense bone or ... Compact bone and spongy bone are the two types of osseous tissue or bone tissue that make up bones. Although there may be different ...The compact and spongy bones are two different types of bone tissue that constitute our bones. While the compact ones refer to the hard, outer ...The main difference between compact and spongy bone is that compact bone is the firmer outer layer of bone tissue and spongy bone is the softer, more porous ...The two types which will be discussed in this space are compact bone and spongy bone. Both are always together, but the main difference between compact ...Many people are confused about differences between compact and spongy bone but the fact is that these are not different types of bones but ...The spongy bone matrix forms a meshwork called trabeculae, which supports and protects the various cells in the bone marrow. ... Compact bone is a harder, outer layer that surrounds the spongy core. The functional unit of compact bone is an osteon, or Haversian system.The difference between Compact Bone and Spongy Bone is that in the former the shaft of the long bone is compact bone whereas in the latter ...
Besides providing structure and support for the body, and allowing for mobility, bones also protect various organs, produce blood cells, and store minerals. These functions are possible thanks to the tissues that make up the bones. There are two types of bone tissue – cortical bone and cancellous bone. Bones also feature other tissue types, including periosteum, endosteum, bone marrow, cartilage, blood vessels, and nerves. Cortical bone, also called compact bone, makes up the hard outer layer of bones. It gives bones their smooth and white appearance and makes up 80% of the total bone mass of the skeleton. An osteon, also called a Haversian system, is the primary anatomical and functional unit of cortical bone. It is a microscopic column that tends to run parallel to a bone’s long axis. Osteons have an osteonic or Haversian canal running through their center, surrounded by concentric rings of matrix called lamellae. Haversian canals allow nerve fibers and blood vessels to pass through and supply the bone. Between the lamellae, you have bone cells called osteocytes in small, oblong spaces called lacunae. I’ll describe osteocytes further later in the video. Canaliculi are tiny passageways that radiate from the Haversian canal to the lacunae. Transverse vessels called Volkmann canals run perpendicular to the osteons and connect adjacent osteons. They also connect blood vessels within osteons to the periosteum. Osteons are densely packed, and spaces between adjacent osteons are filled with interstitial lamellae, which are layers of bone that are generally remnants of previous osteons. Why are there previous osteons? Well, this is due to bone remodeling, or bone metabolism, which is a process in which mature bone tissue is removed through resorption and new bone tissue is added through ossification. Bones are constantly remodelled, because this helps repair microdamages and allows bones to adjust their structure to meet changing mechanical needs. This remodelling is done by specialized cells. Osteoblasts secrete new bone, while osteoclasts break bone down. In addition, there are cells called osteocytes, which result when osteoblasts get trapped in the mineral matrix of bone they’ve created and develop specific features. The space each osteocyte occupies is called a lacuna. Osteocytes can send signals influencing the activity of osteoblasts and osteoclasts and have many other functions. Cortical bone is covered by periosteum on its outer surface, and endosteum on its inner surface. The endosteum forms the boundary between cortical bone and cancellous bone. Cancellous bone, also called trabecular or spongy bone, consists of a porous network. It’s weaker and less dense but more flexible than cortical bone. Cancellous bone accounts for 20% of total bone mass but has nearly 10x the surface area of compact bone. Cancellous bone is highly vascular and often contains red bone marrow where hematopoiesis, the production of blood cells, occurs. It also has a higher surface area to volume ratio compared to cortical bone, which means it’s better for metabolic activities such as the exchange of calcium ions. Anyway, let’s discuss the structure of cancellous bone. Cancellous bone is made up of a network of trabeculae, which are its primary anatomical and functional units. Openings on the trabeculae are called canaliculi and these connect to adjacent cavities, instead of to a haversian canal, for blood supply. Within cancellous bone spaces we find bone marrow and hematopoietic stem cells, which are stem cells that give rise to other blood cells, including platelets, red blood cells and white blood cells. Bone marrow is a nutrient-dense, spongy tissue located in the cavities of bones. It can be found in almost any bone with cancellous tissue and produces both red and white blood cells, as well as platelets. Bone marrow also contains stem cells. In newborns, all such bones are filled exclusively with red marrow or hematopoietic marrow. Red bone marrow produces blood cells. As children age, red bone marrow decreases in quantity and yellow bone marrow increases in quantity. By the age of 25, red bone marrow achieves the final adult distribution. In adults, red marrow is mostly found in the bone marrow of the femur, ribs, and pelvic bones. Yellow bone marrow is located in the hollow cavity of long bones. It is typically found at the center surrounded by red bone marrow. Yellow marrow stores fat and can be called on in life-threatening situations to produce more red blood cells, specifically if you experience rapid blood loss. During these kinds of situations, yellow bone marrow can transform into red bone marrow, producing more blood cells to keep you alive. 3D MODEL: Full Male And Female Anatomy Set Rigged 3D model by 3dMediSphere
We've got the skin covered, so now let's take a look at bones! These give structure to the body. Bone is a type of tissue, but an actual complete bone is an organ, because there is lots of stuff inside besides bone. What else is in there? Find out here! Watch the whole Anatomy & Physiology playlist: 🤍 General Chemistry Tutorials: 🤍 Organic Chemistry Tutorials: 🤍 Biochemistry Tutorials: 🤍 Biology/Genetics Tutorials: 🤍 Biopsychology Tutorials: 🤍 Microbiology/Infectious Diseases Tutorials: 🤍 Pharmacology Tutorials: 🤍 History of Drugs Videos: 🤍 Immunology Tutorials: 🤍 EMAIL► ProfessorDaveExplains🤍gmail.com PATREON► 🤍 Check out "Is This Wi-Fi Organic?", my book on disarming pseudoscience! Amazon: 🤍 Bookshop: 🤍 Barnes and Noble: 🤍 Book Depository: 🤍
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🤍Medical3DAnimationCompany.com Email us: solutions🤍Medical3DAnimationCompany.com Showing the spongy interior structure of trabecular bone. Produced for a bone based implant system (hip replacement, etc.) this animation showed the interior physical structure of bone. The implant from Zimmer also used a trabecular shaped titanium interface that would allow the bone to graft onto the implant very tightly. Have a Medical 3D Animation Project idea you'd like to discuss? Let's take your medical graphics project to the next level, Contact us today. For more work examples, visit our website - 🤍Medical3DAnimationCompany.com Email us: solutions🤍Medical3DAnimationCompany.com
A short lecture by Dr. Kathleen Alsup introducing students to the differences between compact and spongy bone within the human body. Check out our website (LINK BELOW) for additional anatomy resources. 🤍
This Video contains a full discussion of the Structure of the Spongy Bone tissue for Medical Neet and Nursing Students. Spongy bone, also known as cancellous bone or trabecular bone, is a very porous type of bone found in animals. It is highly vascularized and contains red bone marrow. Spongy bone is usually located at the ends of the long bones (the epiphyses), with the harder compact bone surrounding it. Spongy bone is composed of cells called osteocytes that sit in small cavities known as lacunae. The lacunae and their accompanying osteocytes are housed in the trabeculae matrix of the bone along with the bone marrow. Blood vessels travel through the harder compact bone to the spongy bone, supplying it with the materials necessary to create blood cells. Osteocytes positioned close to a blood vessel can take on nutrients and expel waste products through tiny interconnecting channels on the surface of the trabeculae called canaliculi. Spongy bone can be converted to the compact bone by the action of osteoblasts, bone cells that secrete the material that creates the compact bone matrix. It is through this process that the long bones in a human embryo develop. Bone marrow, also called myeloid tissue, is formed when the trabecular matrix crowds blood vessels together and they condense. While compact bone is denser and has fewer open spaces, spongy bone is ideal for making and storing bone marrow within the lattice-like trabeculae network. Compact bone stores yellow bone marrow, which is composed primarily of fat, in its medullary cavity. Spongy bone contains red bone marrow that is used in erythropoiesis. The lightweight and low density of spongy bone balance out the heavier and denser compact bone to reduce the overall weight of the skeleton. This makes it easier for muscles to move the limbs. #Spongybone #Neet #Nursing
Today Hank explains the skeletal system and why astronauts Scott Kelly and Mikhail Kornienko are out in space studying it. He talks about the anatomy of the skeletal system, including the flat, short, and irregular bones, and their individual arrangements of compact and spongy bone. He'll also cover the microanatomy of bones, particularly the osteons and their inner lamella. And finally, he will introduce the process of bone remodeling, which is carried out by crews of osteocytes, osteoblasts, and osteoclasts. Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App! Download it here for Apple Devices: 🤍 Download it here for Android Devices: 🤍 Chapters: Introduction: Astronaut Bones 00:00 Structure of the Skeletal System: Axial & Appendicular Bones 2:33 Bone Shapes: Long, Short, Flat, and Irregular 3:11 Internal Bone Structure 3:47 Osteons and Their Lamellae 5:05 Osteoblasts and Osteoclasts 5:54 Bone Remodeling: Resorption & Apoptosis 7:28 Review 9:28 Credits 10:13 * Thanks to the following Patrons for their generous monthly contributions that help keep Crash Course free for everyone forever: Mark Brouwer, Jan Schmid, Steve Marshall, Anna-Ester Volozh, Sandra Aft, Brad Wardell, Christian Ludvigsen, Robert Kunz, Jason, A Saslow, Jacob Ash, Jeffrey Thompson, Jessica Simmons, James Craver, Simun Niclasen, SR Foxley, Roger C. Rocha, Nevin, Spoljaric, Eric Knight, Elliot Beter, Jessica Wode, Julie Kaminski, Steven Ness, Hannah!!!!!, Pamela Genise, Mark B. Williams, Becky Kaplan, William Edwards, Rebecca Carlson, Matthew Tryba, Eric Birchfield Crash Course is on Patreon! You can support us directly by signing up at 🤍 Want to find Crash Course elsewhere on the internet? Facebook - 🤍 Twitter - 🤍 Instagram - 🤍 CC Kids: 🤍
In this video we discuss the structure of bone tissue and the components of bones. We also discuss what are osteons, what are canaliculi, what are trabeculae, and the components of bone matrix. Transcript/notes Structure of bone tissue The bones in your body are made up of an extraordinarily complex connective tissue that’s structure matches its function. It is comprised of cells, fibers and extracellular material or matrix. The bones in your body have 3 major types of bone cells. Let’s start by looking at a diagram of bone tissue. There are 2 main types of bone tissue, compact bone and cancellous bone or spongy bone. Compact bone surrounds the spongy bone tissue and it has a unique appearance. These cylinder shaped structures are called osteons or Haversian systems. In the middle of these osteons is a central Haversian canal that runs lengthwise through the bone and it houses nerves and blood vessels that supply the bone. The cylinder shaped layers of the osteons are called concentric lamellae. The lamellae are composed of calcified matrix. The matrix of the bones in your body is composed of inorganic salts and organic material. The inorganic matrix is made up of rocklike crystals of calcium and phosphate called hydroxyapatite crystals, calcium carbonate and magnesium, sodium, sulfate and fluoride are also found in bone material. The organic material is comprised of collagenous fibers and a gel like ground substance containing protein and polysaccharides. The ground substance is important in providing support and adhesion between cellular and fibrous elements. There is also circumferential lamellae that runs along the periosteum, which covers the outside of bones, and along the endosteum which lines the inner spongy bone tissue. Interstitial lamellae are located between osteons. Lacunae are the small spaces in bone tissue where mature bone cells called osteocytes are imprisoned. These cells are responsible for maintaining the bone matrix. Canaliculi are small canals that extend in many directions from the lacunae connecting to other lacunae and the central canal. They provide for intercellular communication and passageway for the delivery of nutrients to the osteocyte cells. There are also transverse canals which connect central canals to one another and these canals also house nerves and blood vessels. Now for spongy bone tissue. Spongy bone has no osteons as it has a lattice like appearance of crisscrossing branches called trabeculae. The trabeculae are comprised of endosteum surrounding parallel lamellae composed of bone matrix, and osteocytes in lacunae with canaliculi extending out from the lacunae. Some of the canaliculi open onto the surface of the trabeculae. Like in compact bone tissue, the canaliculi provide a passageway for nutrients to reach the osteocyte cells. The formation or lattice like look of spongy bone allows it to distribute any stress or pressure applied to it throughout the entire framework. Timestamps 0:00 Overview of the structure of bones 0:11 Structure of compact bone tissue 0:25 Osteons 1:22 Circumferential lamellae 2:10 Spongy bone tissue
What is bone remodeling and repair? Bone remodeling is when old, brittle bone tissue is removed or resorbed and gets replaced by new bone tissue. Remodeling also occurs when reshaping your bones after a fracture or when repairing micro-cracks which form during ordinary activities, especially when your bones are under stress, like after lifting heavy weights. Find our complete video library only on Osmosis Prime: 🤍 Hundreds of thousands of current & future clinicians learn by Osmosis. We have unparalleled tools and materials to prepare you to succeed in school, on board exams, and as a future clinician. Sign up for a free trial at 🤍 Subscribe to our Youtube channel at 🤍 Get early access to our upcoming video releases, practice questions, giveaways, and more when you follow us on social media: Facebook: 🤍 Twitter: 🤍 Instagram: 🤍 Our Vision: Everyone who cares for someone will learn by Osmosis. Our Mission: To empower the world’s clinicians and caregivers with the best learning experience possible. Learn more here: 🤍 Medical disclaimer: Knowledge Diffusion Inc (DBA Osmosis) does not provide medical advice. Osmosis and the content available on Osmosis's properties (Osmosis.org, YouTube, and other channels) do not provide a diagnosis or other recommendation for treatment and are not a substitute for the professional judgment of a healthcare professional in diagnosis and treatment of any person or animal. The determination of the need for medical services and the types of healthcare to be provided to a patient are decisions that should be made only by a physician or other licensed health care provider. Always seek the advice of a physician or other qualified healthcare provider with any questions you have regarding a medical condition.
This video gives an overview of few of the most important concepts from the chapter "Structural Organisation in Animals" from the unit "Structural Organisation in Plants and Animals", which is a very important chapter from NEET point of view #neet2024biology #neetbiologypreparation #onlinenbt.com #neelabakore #neelabakoretutorials #biologyforneet #biologyforcompetitiveexams #biologyforclass11 #structuralorganisationinanimals These concept videos are meant for those aiming for 11th CBSE Board exams, NEET, JIPMER and other Medical Entrance Examinations in India. For free and unlimited online test on this chapter, visit 🤍 For complete NEET preparation, comprising all chapters of Biology, Physics and Chemistry, visit, 🤍 🤍 🤍 🤍 The study notes for this unit i.e. Structural Organisation in Plants and Animals - 🤍 All the study notes for NEET Biology are available on Amazon Store front at 🤍 Links for the books are provided below: 1. Diversity in Living World - 🤍 2. Structural Organisation in Plants and Animals - 🤍 3. Cell: Structure and Functions - 🤍 4. Plant Physiology - 🤍 5. Human Physiology - 🤍 6. Reproduction - 🤍 7. Genetics and Evolution - 🤍 8. Biotechnology - 🤍 Free Delivery (On Selected Pin codes) !!! ....................................................... Course targeting NEET are available at 🤍 - Amazon Affiliate links to the products which we use for our videos: Canon 80D: 🤍 Canon 24mm STM Lens: 🤍 Canon 55-250mm Lens: 🤍 Wireless Microphone: 🤍 On-Camera Microphone: 🤍 Tripod: 🤍 _ For business inquiries : abhibakore🤍gmail.com _ Follow us on Instagram to get a more behind the scenes experience 🤍
More about compact and spongy bone at this blog post: 🤍 The video here is captured from Skeleton Premium, and app for the iPad/iPhone, PC, or Mac that provides an encyclopedic anatomical reference of skeletal anatomy. Check out the iPad app at 🤍 Check out the PC or Mac versions at 🤍
In this video we discuss the parts of a long bone and some of the functions of each of those bone parts. We cover the diaphysis, the epiphysis, spongy and compact bone, bone marrow, the periosteum and the medullary cavity. Transcript/notes Parts of a long bone. In this video we are going to go over a very basic overview of the parts of a long bone. The diaphysis is the shaft of a bone, and its function is to be rigid enough to tolerate strong forces and not bend or break. The diaphysis is comprised of compact bone tissue and spongy bone tissue. At each end of the diaphysis is a epiphysis, which is composed mainly of spongy bone tissue. The spaces of spongy bone tissue contain red marrow, which produces red blood cells, white blood cells and platelets. You can see at the epiphysis the bone widens out, this is so a joint can be formed with another bone. By the widening out of these bone ends, a larger surface area is created, providing for better joint stability. Where bones come together to form joints is a smooth tissue called articular cartilage. It provide shock absorption, cushioning and minimizes friction as the bones move. Because articular cartilage has a poor blood supply, it does not heal very well once it has been damaged. There is a thin fibrous membrane called periosteum that covers the entire bone surface except where the articular cartilage is. This membrane allows for attachment of ligaments and muscle tendons, and houses cells that are important in bone formation and repairing bone tissue. The periosteum has many nerve fibers, so it can be very painful when bruised. Inside the diaphysis is a tubelike area called the medullary cavity, which houses red marrow during childhood, which is replaced by yellow marrow as a person ages. There is a thin membrane that lines the medullary cavity called the endosteum, which contains cells that are important in bone growth and repair. Bones are also well supplied with arteries and veins. Timestamps 0:00 The diaphysis 0:17 The epiphysis 0:41 Articular cartilage 0:56 Periosteum 1:17 Medullary cavity 1:28 The endosteum
Get the full Human Histology course , Click on this link and grab the offer ! 🤍 Reference for this video : Inderbir Singh's textbook of human histology,8e Get a strong basics in your medical career ! Like, share and subscribe Med Madness for more Medical Lectures Follow Med Madness here ! instagram.com/med_madness facebook.com/medmadness medmadnessofficial🤍gmail.com Credits music credits : bensound.com Images : Wikipedia/public domain
Check out Brilliant and get 20% off!! 🤍 How Bone Marrow Keeps You Alive In this video, Jonathan from the Institute of Human Anatomy discusses the anatomy of bone tissue, bone marrow, as well as the production of blood cells. Cool Stuff Merchandise 🤍 Support Us on Patreon! 🤍 Codex Anatomicus 🤍 Coupon Code for 20% OFF: IOHA20 mUvmethod 🤍 Coupon Code for 30% OFF: IOHASPLITS30 Video Timeline 00:00 - 00:49 Intro 00:50 - 01:28 Sibling Rivalry - Real vs Fake Bone 01:29 - 03:00 How Thick is the Outside of Your Bone? 03:01 - 04:57 Broken Bones & Hollow Bones 04:58 - 06:24 Bones Have Fat Inside...? 06:25 - 07:40 Zooming to the Inside of Bone 07:41 - 08:34 The Little Beams of Spongy bone 08:35 - 11:15 What is Inside the Spongy Bone? 11:16 - 11:47 Which Bones Have Red Bone Marrow? 11:48 - 13:33 Lifelong Learning! Audio Credit: 🤍bensounds.com #Brilliant #Bones #BoneMarrow
Compact bone and Spongy bone 🦴 Differences | Bone and Cartilage #spongybone #compactbone