It causes problems with the development of bloodforming hematopoietic cells in the bone marrow that have the potential to develop into different types of blood cells. Early on in a humans life, this takes place in many bones, but during development haematopoiesis increasingly centres on flat bones so that by puberty, blood production takes place predominantly in the. Bone marrow is the soft, spongy material that fills the inner core of our bones. This video explains the function of bone marrow including the functions of the two types of bone marrow. Start studying structure and function of hematologic system ppt. Osseous tissue and skeletal structure napa valley college. Get a printable copy pdf file of the complete article 168k, or click on a page image below to browse page by page. The weight of mineral per volume of bone is the bone mineral density. Learn the basics of bone biology, including the different elements that make up bone and how those pieces work together, in this short and visually dynamic animation. The term bone marrow bm refers to the tissue occupying the cavities under the cortex within the honeycomb of trabecular bone. Bone marrow, a component of the lymphatic system, is the soft and flexible tissue in the cavities of bone. Bone structure and skeletal system powerpoint presentation. Normalstructure,function,andhistologyofthebonemarrow gregorys. The process of bcell maturation was elucidated in birdshence b for bursa.
The bone marrow is composed of both cellular and noncellular components and structurally be divided into vascular and nonvascular regions. It is composed of hematopoietic cells, marrow adipose tissue, and. Clotting i when platelets encounter damaged blood vessels, they break open and release chemicals called clotting factors into the. Bone, or osseous tissue, is a hard, dense connective tissue that forms most of the adult skeleton, the support structure of the body. Ared bone marrow slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. This helps you give your presentation on bone structure and skeletal system in a conference, a school lecture, a business proposal, in a webinar and business and professional representations. Bone marrow is a semisolid tissue which may be found within the spongy or cancellous portions of bones.
Full text full text is available as a scanned copy of the original print version. These are mostly compacted bone with little marrow and include most of the bones in the limbs. Bone exerts important functions in the body, such as locomotion, support and protection of soft tissues, calcium and phosphate storage, and harboring of bone marrow 3, 4. Normal marrow is either red, consisting of the hematopoietic tissue, or yellow. Red bone marrow is the site of origin of all formed elements in the blood. It is highly vascularized and contains red bone marrow. In addition to discussing normal structure, function, and histology of bone marrow, methods for preparation and evaluation of bone marrow are presented. Find powerpoint presentations and slides using the power of, find free presentations research about joint structure and function ppt. Objectives microscopic study of bones compact and cancellous bone composition of bones. It is the main lymphoid organ, where all the lymphocytes and all the body cells are produced and tlymphocytes are developed. A major goal of this work was the development of an accurate depiction of the morphology of the bone marrow vasculature. Structure and function of bone the periosteum and endosteum periosteum outer surface of the bone isolates and protects the bone from surrounding tissue provides a route and a place for attachment for circulatory and nervous supply actively participates in bone growth and repair.
Bone marrow transplant surgery in india bone marrow transplant is a way of giving very high dose chemotherapy, sometimes with whole body radiotherapy. The structure of bone marrow constitutes of hematopoietic tissue islands and adipose cells surrounded by vascular sinuses interspersed within a meshwork of trabecular bone. Bm iron stores once all normal and abnormal bone marrow cells have been assessed on a routine stain an iron stain should be examined, using a medium power objective x 40 or x 50. Powerpoint is the worlds most popular presentation software which can let you create professional bone structure and skeletal system powerpoint presentation easily and in no time.
In the body, the major function of bone marrow is to produce blood cells. In mammals the primary organ for blymphocyte development is the bone marrow, although the prenatal site of bcell differentiation is the fetal liver. In this this lesson, learn more about where it is found, the different types, and how it serves the body. Structures and functions of the skeletal system t he foot bone is connected to the leg bone. We will tell you about the general structure of the bone marrow, how the bone marrow works in dogs, common diseases that affect the bone marrow and common diagnostic tests performed to evaluate the bone marrow in dogs. Bone marrow is important for both creating blood cells and storing fats. Bone marrow has both a vascular component and a nonvascular component. As an individual ages, red marrow is replaced by yellow marrow. Bone marrow is found in the medullary cavities the centres of bones. In birds and mammals, bone marrow is the primary site of new blood cell production or hematopoiesis.
This tissue is known as bone marrow and is responsible for the production of blood cells a process known as hematopoiesis. Bone marrow is a highly cellular structure present within the hollow cavities of hard bone tissue there is 2 types of bone marrow. Note the irregularity of this surface and consider how the contour of this bone forming surface. Some bones have an interior mass of cancellous bone, which is a network of trabeculae columns arranged in such a way to reduce stress and pressure on the bone. The quality of the marrow sections is governed by numerous variables related to specimen collection and processing and must be considered.
Spongy bone is usually located at the ends of the long bones the epiphyses, with the harder compact bone surrounding it. It is also found inside the vertebrae, in the ribs, in. Two types of marrow are present during a persons lifetime. The nonvascular section of bone marrow is composed of hemopoietic cells of various lineages and maturity, packed between fat cells, thin bands of bony tissue trabeculae, collagen fibers, fibroblasts and dendritic cells.
When the developing blood cells in the cords are finally mature, they pass through the endothelium of these sinuses to reach the blood and are then carried out into the general circulation. Inside the diaphysis is the medullary cavity, which is filled with yellow bone marrow in an adult. The skeletal system is the body system composed of bones and cartilage. The simplified model of bone marrow vasculature typically used in theoretical models is shown in the upper cartoon of fig 1. Not all lymphocytes formed in the red bone marrow are immunocompetent, capable of recognizing and attacking foreign antigens, when they exit the marrow. A bone marrow biopsy is the removal of soft tissue called marrow from inside bone. Bone marrow is found in almost all bones where cancellous bone is present. Bone is a mineralized connective tissue that exhibits four types of cells. The shell of each bone is made up of compact bone, which looks like a solid mass. Only after the bone marrow has been carefully assessed on low and medium power the x100 oil should be used to assess cellular detail 49. Lymph nodes are small, beanshaped glands that are located along the lymphatic system a system of vessels similar to arteries and veins through which lymph fluid travels. Pearson marrowpancreas syndrome genetics home reference. Ppt bone and cartilage2 powerpoint presentation free. Consists of a line of cells that originate in the bone marrow, are.
View and download powerpoint presentations on bone marrow aspiration ppt. The biopsy is done using a small needle inserted into an age appropriate area long bone for children, flat bone for adults. Pearson marrowpancreas syndrome is a severe disorder that usually begins in infancy. In the areas of the skeleton where bones move for example, the ribcage and joints, cartilage, a semirigid form of connective tissue, provides flexibility and smooth surfaces for movement. If you take a sample of bone and wash out the liquid bone marrow, the remaining bone is about half mineral and half protein.
Learning the names of common bones is probably not a favorite activity of most high school students. Having too many mast cells can affect the function of your skin, spleen, bone marrow. Learn vocabulary, terms, and more with flashcards, games, and other study tools. The bone marrow is where circulating blood cells are produced a process known as haematopoiesis. Bone marrow is found in the hollow part of most bones. The marrow is responsible for making around 2 million red blood cells every second.
Marrow cells become saturated with fat and are no longer active in. It is large at the time of birth but with age, the size keep on reducing and becomes very small by attaining puberty. Lymph nodes are classified as secondary lymphoid organs, with the primary lymph organs being the thymus gland, tonsils, spleen, and bone marrow. Bone marrow also helps to remove old cells from the circulation. In addition to discussing normal structure, function, and histology of bone marrow, methods for preparation and evaluation of.
Find powerpoint presentations and slides using the power of, find free presentations research about bone marrow aspiration ppt. The leg bone is connected to thesesamoid bone inside a synovial joint. The outer walls of the diaphysis cortex, cortical bone are composed of dense and hard compact bone, a form of osseous tissue. Bone anatomy and tissue structure and function of the human. A free powerpoint ppt presentation displayed as a flash slide show on id. The bone marrow is the major hematopoietic organ, and a primary lymphoid tissue, responsible for the production of erythrocytes, granulocytes, monocytes, lymphocytes and platelets. A multiscale model of the bone marrow and hematopoiesis. To be immunocompetent, a lymphocyte must be able to elicit an immune response. A brief discussion of bone marrow structure and function will be presented here. Microscopic structure of bone lancaster high school. Below is information about the structure and function of the canine bone marrow. Found in virtually all bones in an infants or childs, adults body. Additionally, the constituent cell lineages and their function will be discussed, together with clinically relevant processes and. These bones tend to support weight and help movement.
Sagittal section through long bone showing the internal structure of the bone. Introduction bone is mineralized dense connective tissue made up of few cells in mineralized matrix consists of 3040 % of our body weight. This treatment aims to try to cure some types of cancer, such as leukaemia, lymphoma and myeloma. View and download powerpoint presentations on joint structure and function ppt. Spongy bone, also known as cancellous bone or trabecular bone, is a very porous type of bone found in animals.
It is a lobed organ, located near the heart and beneath the breast bone. Hemoglobin develops in cells in the bone marrow that become red blood cells. Well go over the specific functions of both red and yellow bone marrow. However, it is clear from observations using vital microscopy and plastic injection in bone marrow blood vessels albrektsson and albrektsson, 1978. A clinical look at bone composition and structure dummies. Normal structure, function, and histology of the bone marrow.
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