Like all compact bone tissue it is characterized by its circular arrangements of osteons, or haversian systems. This arrangement of cells, blood vessels, and extracellular matrix affords this tissue the ability to be. Compact bone is organized as parallel columns, known as haversian systems, which run lengthwise down the axis of long bones. Most bones contain both compact and spongy bone tissue, but their concentration varies across different. Osteocytes can be seen embedded in concentric rings in the bone matrix. Compact bones make up 80 percent of the human skeleton. Bone tissue consists of two types within the same specific bone, e.
Most bones contain both compact and spongy bone tissue, but their concentration varies across different bones. Inside the interior of the bone is the trabecular bone tissue, an open cell, porous network that is also called cancellous or spongy bone. Some, mostly older, compact bone is remodelled to form these haversian systems or osteons. Choose from 500 different sets of bone histology flashcards on quizlet. Histology sections, where the stain has been identified, link to this page and the specific stain description. The hard outer layer of bones is composed of compact bone tissue, socalled due to its minimal gaps and spaces. Start studying compare the histology of the compact and spongy bone tissue. Blue histology lecture and lab notes all the pages you can call from the table below are graphics intensive. Compact bone is dense so that it can withstand compressive forces, while spongy cancellous bone has open spaces and. Around canal is matrix arranged in concentric layers called lamellae. Haversian canal the central canal of an osteon haversian system in compact bone, within which blood vessels and nerves travel throughout the bone. The osteoblasts start to lay down a collar of compact bone around the shaft called subperiost eal collar of bone. Introduction to bone boundless anatomy and physiology.
Well take up the quiz below and see just how well you will do. Like other tissues in the body, bones are made up of specialized cells that serve different functions. Note osteoclastic bone resorption resorption phase at the lower left solid arrows and new bone formation formation phase at the upper right open arrows. Histology pages, school of anatomy and human biology, uwa, australia, by lutz slomianka. Skeletech bone histology slide set page 4 of 7 2001. Nov 17, 2017 this feature is not available right now. Compare the histology of the compact and spongy bone.
Histology a microscopic study of human body tissues and. Osteoblasts deposit the matrix in the form of thin sheets which are called lamellae. The information you will learn in this packet will be important for understanding the remodelling process. Comprehensive and uptodate, the handbook of histology methods for bone and cartilage offers researchers a practical guide to all the major histological and histomorphometrical methods of bone and cartilage analysisa gold mine of detailed techniques for the preparation of tissue from collection through fixation, embedding, sectioning, and. Use the quiz to test your basic histological knowhow, knowwhat and nowhere. Most bones contain compact and spongy osseous tissue, but their distribution and concentration vary based on the bones overall function. This is the area of bone to which ligaments and tendons attach. Compact bone consists almost entirely of extracellular substance, the matrix. Collagen fibres within each lamella run parallel to each other. Crossword puzzle 1 dental hygiene dhy 121 with dpenney. The growth plate is located just below the epiphysis and is the portion of the bone in which cartilage proliferates and is mineralized. As a tissue, bone tissue is a type of connective tissue. Primary wovenimmature bone tissue formed at the beginning primary bone tissue is replaced by lamellar in growing skeleton, particularly in fetus in adults during rapid bone remodelling post. T he inner surfaces of compact bone and vascular cavities of spongy bone are covered by connective tissue, the endosteum figure 3, which contains osteogenic cells, osteoblasts, and osteoclasts.
Additionally, bone histology has also been used to differentiate between human and nonhuman bone fragments 18192021 22 2324. This website contains more than 280 virtual microscope slides for learning histology. Cartilage is thin, avascular, flexible and resistant to compressive forces. Trabecular tissue is the more metabolically active because it has about eight to 10 times more total surface area than cortical tissue, and these surfaces are all largely covered by bone cells. Bone also serves as a reservoir of calcium, phosphate, and other ions that can be released or stored. Compact bone, or cortical bone, mainly serves a mechanical function. Oct 28, 2014 lecture 1 histology of cartilage and bonerev1 readonly. Compact bone makes up 80 percent of the human skeleton. This is possible due to a number of speciesspecific. The tissue is a combination of mesenchymal regions m containing capillaries, fibroblasts, and osteoprogenitor stem cells and regions of normally calcified matrix with varying amounts of collagen and the three. Spongy bone, inside the compact bone, is porous with weblike trabeculae. This type of bone is located between layers of compact bone and is thin and porous. Ground bone slides are not only necessary for teaching histology of haversian system to undergraduate and postgraduate students, but also essential for rapid pathological diagnosis in related diseases as well as to be used in polarizing microscopy and studying bone architectures from fossils.
Oct 9, 20 labeled compact bone microscope slides labeled histology slides stay safe and healthy. Oct 10, 2014 compact bone histology this shows the architecture of compact bone which is designed to nourish and regulate osteocytes and bone matrix. Lecture 1 histology of cartilage and bone rev1 readonly. Bone is highly vascularised, and its calcified matrix makes it very strong. The osteocytes sit in their lacunae in concentric rings around a central haversian canal which runs longitudinally. Most bones contain compact and spongy osseous tissue, but their distribution and concentration vary based on the bone s overall function. Trabecular bone also called cancellous or spongy bone consists of delicate bars and sheets of bone, trabeculae, which branch and intersect to form a sponge like network. The epiphysis is the end of the bone, and is the portion that participates in the joint. Histology category listing pages and images associated with histology. Compact which is found in the shafts of long bones in the diaphyses. When referring to a bone the organ, there will be several types of tissue present. It is found beneath the periosteum of all bones and makes up the bulk of the diaphyses of long bones. Orthopaedic surgeryhistology of bone wikibooks, open books.
The differences between compact and spongy bone are best explored via their histology. Muscle histology functions of muscle tissue types of muscle tissue skeletal muscle cardiac muscle smooth muscle types of muscle tissue similarities a free powerpoint ppt presentation displayed as a flash slide show on id. The inner aspect consists of bone that is not as dense as cortical bone and has a honeycomb appearance. In lamellar bone, the collagen fibres have become remodelled to become more parallel in layers there are two types of mature bone. Externally, the bone is covered by periosteum, which is formed by an outer layer of fibrous connective tissue and a inner layer containing osteogenic. The ends of long bones or epiphyses consist mainly of trabecular bone compact bone does not have any spaces or hollows in the bone matrix that are visible to the eye. One of the things that will be expected of you is a good understanding when it comes to histology, and below is what is considered the toughest mcq test on the course. Handbook of histology methods for bone and cartilage. Orthopaedic surgeryhistology of bone wikibooks, open. Compact or cortical bone is usually thick dense bone that forms the outer shell covering almost all bones in the body. Identify that compact bone is strong yet flexible and how the design of compact bone creates these properties. The first bone formed at any site is woven or primary bone, but this is soon replaced by lamellar bone. This thirteenth edition of atlas of histology with functional correlations formerly difiore\u2019s provides a rich understanding of the basic histology concepts that medical and allied health students need to know. Begin by identifying the concentric rings of lamellar bone that surround a haversian canal.
Consists of a central canal haversian canal surrounded by lamellar bone matrix within which osteocytes reside. Compact bone histology this shows the architecture of compact bone which is designed to nourish and regulate osteocytes and bone matrix. Study 25 crossword puzzle 1 flashcards from gisela c. Please practice handwashing and social distancing, and check out our resources for adapting to these times. The diagram above shows a transverse view of an osteon haversian system the basic unit of compact bone. The quiz does not provide comprehensive coverage of the contents of this site. Bone is commonly classified according to its gross appearance as cancellous bone bone with numerous, macroscopic interconnecting cavities, or trabeculae, also known as spongy or trabecular bone or compact bone dense lamellar bone without trabeculae, but both types have the same basic histological structure. Learn bone histology with free interactive flashcards.
Introduction as the main constituent of the adult skeleton, bone tissue supports fleshy structures, protects vital organs such as those in the cranial and thoracic cavities, and harbors the bone marrow, where blood cells are formed. Master histology with idealized and actual photomicrography. Keep in mind that the word bone can refer to either a type of tissue or to the organ. Histological study of compact bone tissue in some mammals. This topic covers the structure and function of bone and cartilage, the type of cells found in these tissues, and how bone and cartilage are formed. The osteoblasts start to lay down a collar of compact bone. This is a section of compact bone from the wall of the femoral shaft. These columns are composed of lamellae, concentric rings of bone, surrounding a central channel, or haversian canal, that contains the nerves, blood vessels, and lymphatic system of the bone. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Spongy bone is made of tiny plates called trabeculae, which serve as struts, giving the spongy bone strength.
Haversian system osteon the historic name for the functional unit of compact bone. The periosteum forms a peri osteal bud, which is consists of. Realistic, fullcolor illustrations as well as actual photomicrographs of histologic structures are complemented by. Introduction bone tissue along with other ct like cartilage, fibrous tissue, fat, blood vessels, nerves, and hematopoietic elements form the individual bones. Book october 2017 with 21,570 reads how we measure reads a read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a. A cross section of any bone will demonstrate these two types of bones. Same bone section slide 11 at higher magnification. The osteocytes are arranged in concentric rings of bone matrix called lamellae little plates, and their processes run in interconnecting canaliculi. Osteoblasts are the type of cells that form the matrix and collagen fibers. Bone junqueiras basic histology, 14e accessmedicine. It may take a some time to load them if you access the pages from the web and if you have a slow connection. Compact bone histology microanatomy web atlas gwen v. Long bone this slide shows the regions of the end of the growing tibia.
Select the subject areas you want to test yourself in. Note the osteoid, unmineralized bone matrix red arrows. Newly formed bone tissue decalcified for sectioning and stained with trichrome in which the collagenrich ecm appears bright blue. This packet breaks down the composition and organization of compact bone with more depth than in the histology collection. Compact bone, dense bone in which the bony matrix is solidly filled with organic ground substance and inorganic salts, leaving only tiny spaces that contain the osteocytes, or bone cells. Bone tissue is one of the main components of the skeletal system other components include bone marrowmarrow cavity, collagen fibers etc. Compact bone compact bone consists of outer and inner sheets of lamellar bone not seen here and haversian systems, shown here, that run parallel to the long axis of bones. The diagram above shows a longitudinal view of an osteon. Compact bone, also called cortical bone, dense bone in which the bony matrix is solidly filled with organic ground substance and inorganic salts, leaving only tiny spaces lacunae that contain the osteocytes, or bone cells. Stain haematoxylin eosin histology glossary specialised glossary for histology terms and microanatomy. Compact bone forms the thickwalled tube of the shaft or diaphysis of long bones, which surrounds the marrow cavity or medullary cavity. Compact bone does not have any spaces or hollows in the bone matrix that are visible to the eye.
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