DOCSLIB.ORG

Cart-Bone-Post

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Cart-Bone-Post Human Anatomy Bio 11 Cartilage & Bone “chapter 6” Review Chapter 4 – Tissues connective tissues Skeletal System Components Functions (mostly of bone) • bones • support • protection • cartilage • lever for movement • ligaments • major storage and source of ++ --- • other – minerals: Ca and PO4 as calcium supportive phosphate & calcium carbonate connective – Fat in white marrow: lipid-soluble hormones & vitamins tissue • hematopoiesis: blood cell formation & structures maturation in spongy bone spaces Skeletal System • cartilage • bone – hyaline cartilage – osseous tissue • ~ 2/3 wet weight = • basic cartilage structure hydroxylapatite = • mostly ground substance calcium phosphate & • few & thin fibers calcium carbonate – fibrocartilage • ~ 1/3 collagen fibers • ~ hyaline cartilage + collagen fiber bundles – compact bone – elastic cartilage • osteons • ~ hyaline cartilage + – spongy bone elastic fiber bundles cartilage in the skeletal system http://anatomyandphysiologyi.com/skeletal-cartilages http://slideplayer.com/slide/9839492/ hyaline cartilage elastic cartilage fibrocartilage Cartilage Formation and Growth Cartilage Vocab Cartilage develops and grows throughout life by a combination of • chondroblast • chondrocyte • appositional growth • perichondrium and • lacuna • interstitial growth • matrix http://jacusers.johnabbott.qc.ca/~paul.anderson/JOINTLAB/lab7answerspart1.html 5 (6) bone shape categories • long • cuboidal – named “short” but they may not be very short • flat • irregular • odd – sutural = Wormian – sesamoid https://commons.wikimedia.org/wiki/File: Blausen_0229_ClassificationofBones.png Bone Cells In lacunae: • osteocytes – younger & older shown here NOT in lacunae: • osteoblasts • Osteoclasts – (not shown here) https://veteriankey.com/bones-joints-tendons-and-ligaments/ Bone Growth and Remodeling https://veteriankey.com/bones-joints-tendons-and-ligaments/ periosteum & endosteum Within a bone, there are two types of structure composed of the same cells and ground substance compact bone tissue spongy bone tissue comprised of comprised of Haversian systems trabeculae = osteons Osteons: scanning EM https://www.pinterest.com/pin/75505731222357861 / Osteons: LM: H & E http://www.austincc.edu/histologyhelp/tissues/tr_bone_com_dcal.html Osteitis deformans imbalance between osteoclast & osteoblast activities https://www.pinterest.com/pin/8162843054593389/ Cuboidal (short) Bone: block of spongy bone with thin surface layer – veneer - of compact bone https://marchingbandanatom y.weebly.com/structure-and- function-of-bones.html Flat Bone: 2 plates of compact bone separated by thin spongy bone layer (or not) https://www.earthslab.com/physiology/gross-structure-microstructure-long-bone-flat-bone/ Long Bone • 1 diaphysis – mostly compact bone – marrow cavity • 2 epiphyses – mostly spongy bone • 2 metaphyses intramembranous ossification mesenchymal cells form fibrous CT --some differentiate into osteoblasts https://www.researchgate.net/figure/Schematic-representation-of-membranous-ossification-from-Slideshare-presentation_fig12_318206960 enchondral ossification for example here in a long bone https://www.earthslab.com/physiology/ossification-intramembranous-endochondral-ossification-functions Growth plate closure in a13 year old girl 1 year after a type II Salter-Harris fracture https://www.researchgate.net/figure/Growth-plate-closure-in-a-13-year-old-girl-1-year-after-a-type-II-Salter-Harris-fracture_fig7_320338487 … continued https://www.researchgate.net/figure/Growth-plate-closure-in-a-13-year-old-girl-1-year-after-a-type-II-Salter-Harris-fracture_fig7_320338487 Growth plate closure in a 13-year-old girl 1 year after a type II Salter-Harris fracture. (a) Left: Posteroanterior radiograph of the injured left wrist shows central closure (bracket) of the primary growth plate. The ulnar variance remains neutral. An ulnar styloid fracture also is present. Right: Posteroanterior radiograph of the normal right wrist is shown for comparison. (b) Findings on a coronal GRE cartilage-sensitive MR arthrogram of the left wrist confirm the presence of a large area of central growth plate closure with normal peripheral growth plate cartilage (arrows). epiphyseal plate zones https://www.memorangapp.com/flashcards/80549/12-4%2C+Bone+Development+Histo/ “appositional” bone growth growth in diameter or thickness requires remodeling – osteoclast activity – osteoblast activity what happens in -- entire bone -- osteons (and trabeculae) https://www.takvim.pw/appositional-bone-growth-age.html arterial supply to a long bone Nutrient arteries and veins – supply the diaphysis of long bones. Nerves usually accompany these blood vessels into the shaft of the bone. Metaphyseal arteries and veins – supply the junctional area between the diaphysis and the epiphysis Epiphyseal arteries and veins – supply the cells of the epiphyseal plate https://chronicallygratefuldebla.com/2017/06/03/blood-supply-in-bones/ Bone scans measure metabolic activity • “hot spot” = increased metabolism • “cold spot” = decreased metabolism https://www.drugs.com/health-guide/bone-scan.html Bone Fractures know main categories https://blog.23andme.com/23andme- research/is-the-vitamin-d-hype-all-its-made- out-to-be-new-bone-fractures-study- provides-some-clues/ Bone Fracture Repair http://fightland.vice.com/blog/fight-doctor-the-recovery-of-anderson-silvas-leg …. And more! http://didier-chantier.com/normal-bone-marking-foot/normal-bone-marking-foot-best-photo-gallery-website-with-normal-bone-marking-foot/ osteoporosis https://www.researchgate.net/figure/Light-microscopic-views-of-normal-left-and-osteoporotic-right-cancellous-bone_fig3_230657347.
Load more

Recommended publications
  • (AMIC) Compared to Microfractures for Chondral Defects of the Talar Shoulder: a Five-Year Follow-Up Prospective Cohort Study
    life Communication Autologous Matrix Induced Chondrogenesis (AMIC) Compared to Microfractures for Chondral Defects of the Talar Shoulder: A Five-Year Follow-Up Prospective Cohort Study Filippo Migliorini 1 , Jörg Eschweiler 1, Nicola Maffulli 2,3,4,5,* , Hanno Schenker 1, Arne Driessen 1 , Björn Rath 1,6 and Markus Tingart 1 1 Department of Orthopedics and Trauma Surgery, University Clinic Aachen, RWTH Aachen University Clinic, 52064 Aachen, Germany; [email protected] (F.M.); [email protected] (J.E.); [email protected] (H.S.); [email protected] (A.D.); [email protected] (B.R.); [email protected] (M.T.) 2 School of Pharmacy and Bioengineering, Keele University School of Medicine, Staffordshire ST4 7QB, UK 3 Barts and the London School of Medicine and Dentistry, London E1 2AD, UK 4 Centre for Sports and Exercise Medicine, Queen Mary University of London, Mile End Hospital, London E1 4DG, UK 5 Department of Orthopedics, Klinikum Wels-Grieskirchen, A-4600 Wels, Austria 6 Department of Medicine, Surgery and Dentistry, University of Salerno, 84081 Baronissi, Italy * Correspondence: [email protected] Abstract: Introduction: Many procedures are available to manage cartilage defects of the talus, Citation: Migliorini, F.; Eschweiler, J.; including microfracturing (MFx) and Autologous Matrix Induced Chondrogenesis (AMIC). Whether Maffulli, N.; Schenker, H.; Driessen, AMIC or MFx are equivalent for borderline sized defects of the talar shoulder is unclear. Thus, the A.; Rath, B.; Tingart, M. Autologous present study compared the efficacy of primary isolated AMIC versus MFx for borderline sized Matrix Induced Chondrogenesis focal unipolar chondral defects of the talar shoulder at midterm follow-up.
    [Show full text]
  • Comparative Anatomy of the Lower Respiratory Tract of the Gray Short-Tailed Opossum (Monodelphis Domestica) and North American Opossum (Didelphis Virginiana)
    University of Tennessee, Knoxville TRACE: Tennessee Research and Creative Exchange Doctoral Dissertations Graduate School 12-2001 Comparative Anatomy of the Lower Respiratory Tract of the Gray Short-tailed Opossum (Monodelphis domestica) and North American Opossum (Didelphis virginiana) Lee Anne Cope University of Tennessee - Knoxville Follow this and additional works at: https://trace.tennessee.edu/utk_graddiss Part of the Animal Sciences Commons Recommended Citation Cope, Lee Anne, "Comparative Anatomy of the Lower Respiratory Tract of the Gray Short-tailed Opossum (Monodelphis domestica) and North American Opossum (Didelphis virginiana). " PhD diss., University of Tennessee, 2001. https://trace.tennessee.edu/utk_graddiss/2046 This Dissertation is brought to you for free and open access by the Graduate School at TRACE: Tennessee Research and Creative Exchange. It has been accepted for inclusion in Doctoral Dissertations by an authorized administrator of TRACE: Tennessee Research and Creative Exchange. For more information, please contact [email protected]. To the Graduate Council: I am submitting herewith a dissertation written by Lee Anne Cope entitled "Comparative Anatomy of the Lower Respiratory Tract of the Gray Short-tailed Opossum (Monodelphis domestica) and North American Opossum (Didelphis virginiana)." I have examined the final electronic copy of this dissertation for form and content and recommend that it be accepted in partial fulfillment of the equirr ements for the degree of Doctor of Philosophy, with a major in Animal Science. Robert W. Henry, Major Professor We have read this dissertation and recommend its acceptance: Dr. R.B. Reed, Dr. C. Mendis-Handagama, Dr. J. Schumacher, Dr. S.E. Orosz Accepted for the Council: Carolyn R.
    [Show full text]
  • Autologous Matrix-Induced Chondrogenesis and Generational Development of Autologous Chondrocyte Implantation
    Autologous Matrix-Induced Chondrogenesis and Generational Development of Autologous Chondrocyte Implantation Hajo Thermann, MD, PhD,* Christoph Becher, MD,† Francesca Vannini, MD, PhD,‡ and Sandro Giannini, MD‡ The treatment of osteochondral defects of the talus is still controversial. Matrix-guided treatment options for covering of the defect with a scaffold have gained increasing popularity. Cellular-based autologous chondrocyte implantation (ACI) has undergone a generational development overcoming the surgical drawbacks related to the use of the periosteal flap over time. As ACI is associated with high costs and limited in availability, autologous matrix-induced chondrogenesis, a single-step procedure combining microfracturing of the subchondral bone to release bone marrow mesenchymal stem cells in combination with the coverage of an acellular matrix, has gained increasing popularity. The purposes of this report are to present the arthroscopic approach of the matrix-guided autologous matrix-induced chondrogenesis technique and generational development of ACI in the treatment of chondral and osteochon- dral defects of the talus. Oper Tech Orthop 24:210-215 C 2014 Elsevier Inc. All rights reserved. KEYWORDS cartilage, defect, ankle, talus, AMIC, ACI Introduction Cartilage repair may be obtained by cartilage replacement: (OATS, mosaicplasty) or with techniques aimed to generate a hondral and osteochondral lesions are defects of the newly formed cartilage such as microfracture or autologous Ccartilaginous surface and underlying subchondral bone of chondrocyte implantation (ACI).9-17 the talar dome. These defects are often caused by a single or Arthroscopic debridement and bone marrow stimulation multiple traumatic events, mostly inversion or eversion ankle using the microfracture technique has proven to be an 1,2 sprains in young, active patients.
    [Show full text]
  • Vocabulario De Morfoloxía, Anatomía E Citoloxía Veterinaria
    Vocabulario de Morfoloxía, anatomía e citoloxía veterinaria (galego-español-inglés) Servizo de Normalización Lingüística Universidade de Santiago de Compostela COLECCIÓN VOCABULARIOS TEMÁTICOS N.º 4 SERVIZO DE NORMALIZACIÓN LINGÜÍSTICA Vocabulario de Morfoloxía, anatomía e citoloxía veterinaria (galego-español-inglés) 2008 UNIVERSIDADE DE SANTIAGO DE COMPOSTELA VOCABULARIO de morfoloxía, anatomía e citoloxía veterinaria : (galego-español- inglés) / coordinador Xusto A. Rodríguez Río, Servizo de Normalización Lingüística ; autores Matilde Lombardero Fernández ... [et al.]. – Santiago de Compostela : Universidade de Santiago de Compostela, Servizo de Publicacións e Intercambio Científico, 2008. – 369 p. ; 21 cm. – (Vocabularios temáticos ; 4). - D.L. C 2458-2008. – ISBN 978-84-9887-018-3 1.Medicina �������������������������������������������������������������������������veterinaria-Diccionarios�������������������������������������������������. 2.Galego (Lingua)-Glosarios, vocabularios, etc. políglotas. I.Lombardero Fernández, Matilde. II.Rodríguez Rio, Xusto A. coord. III. Universidade de Santiago de Compostela. Servizo de Normalización Lingüística, coord. IV.Universidade de Santiago de Compostela. Servizo de Publicacións e Intercambio Científico, ed. V.Serie. 591.4(038)=699=60=20 Coordinador Xusto A. Rodríguez Río (Área de Terminoloxía. Servizo de Normalización Lingüística. Universidade de Santiago de Compostela) Autoras/res Matilde Lombardero Fernández (doutora en Veterinaria e profesora do Departamento de Anatomía e Produción Animal.
    [Show full text]
  • Module 2 : Anatomy – the Skeleton
    Module 2 : Anatomy – The Skeleton In this module you will learn: The functions of the skeletal system The types of bones in the human body The effects of exercise on your bones What happens to the bones as we get older When studying to become a fitness instructor or personal trainer, you will learn all about the anatomy of the human body. Studying the skeleton is one of the foundations of your trade, you will need to know how the body is structured, the names of each bone, types of bones, importance of bone and joint health, detail of the spine and different terms of movement. Without stating the obvious, each of your clients has their own skeleton and you must be fully aware of how this works. This is for many reasons; you are a teacher and must be fully aware of how to prevent injuries, avoid unnecessary stress on the bones and, if qualified, help the client prevent or heal bone and joint related conditions or medical problems. 2.1 Understanding the Skeletal System The skeleton is comprised of 206 different bones that provide 5 main functions: Support mechanism for muscle and tissue Protection for organs Movement with bones, muscles, and joints Storing minerals and blood cells Growth Skeletal System 2.2 Bones are Formed by Ossification Some bones (such as the flat bones of your skull) in the body are formed in a similar stage to connective tissue. The process is known as direct or intramembranous ossification. Other bones are made up of cartilaginous matter, this is developed from future bone in the embryo which then dissolves and is replaced with other bone cells.
    [Show full text]
  • Adipose Derived Mesenchymal Stem Cell Differentiation Into Adipogenic and Osteogenic Stem Cells
    vv ISSN: 2641-3000 DOI: https://dx.doi.org/10.17352/sscrt LIFE SCIENCES GROUP Hassan IH El Sayyad1*, Mohamed A Sobh2, Soad A Khalifa1 and Omnia KR Research Article 3 El-Sayyad Adipose Derived Mesenchymal Stem 1Zoology Department, Faculty of Science, Egypt 2Urology & Nephrology Center, Research Center, Egypt Cell Differentiation into Adipogenic 3Pediatric Mansoura University Hospital, Mansoura University, Egypt and Osteogenic Stem Cells Dates: Received: 08 December, 2016; Accepted: 23 December, 2016; Published: 29 December, 2016 *Corresponding author: Hassan IH El-Sayyad, Depart- Abstract ment of Zoology, Faculty of Science, Mansoura University, Mansoura, Egypt, Tel: 0020502254850; Objective: Lipoaspiration of human breast fats are important source of adipocyte stem cells E-mail: (hAMSCs) which play a great role in regenerative medicine. The present study illustrates its capability of its transformation and characterization of adipocyte, osteogenic or chondrogenic cells. https://www.peertechz.com Methods and results: The hAMSCs were positive for CD13, CD29, CD105 and CD90 and negative CD34 and CD 14. The hAMSCs were cultured in adipogenic or osteogenic culture for 4,7,14 & 21 days. Gene expression for adipogenic (PCR of leptin, peroxisome proliferator-activated receptor-γ and lipoprotein lipase) and osteogenic (osteocalcin) cells were carried out. Biochemical assessments of adipogenic (lipoprotein lipase enzyme and glycerol-3-phosphate dehydrogenase) and osteogenic (alkaline phosphatase, B-galactosidase and calcium content) markers. Also, light and transmission electron microscopic investigation of adipocyte stem cell culture were investigated at 4,7,14 & 21 days in both two models. Adipocyte derived from hAMSCs displayed fi broblastic morphology and confl uency at 7 days and fl at-shape with positive oil red staining at 14 &21 days.
    [Show full text]
  • BSC2085L Practice Quiz 2
    Preparation for Quiz 2: Bone/cartilage descriptions. Match the name of the bone/cartilage in Table 1 with the description in Table 2: Table 1 Bone/cartilage Table 2 Bone Marking/Description A. Sutures Bones that are longer than they are wide B. Sesamoid Bone Majority of Skeletal Cartilage C. Compact Bone Bones that develop inside Tendons D. Spongy Bone Intervertebral Disks and Knee Joint Cartilage E. Long Bone Smooth and Homogenous Bone Tissue F. Short Bone Found in external Ear and Epiglottis G. Flat Bone Bones that are thin and wafer like H. Irregular Bone Bones that do not fall into another category I. Hyaline Cartilage Bones with lots of open spaces J. Elastic Cartilage These are found between Cranial Bones K. Fibrocartliage Bones that are cube-shaped Preparation for Quiz 2: Bone Markings Match the name of the bone marking in Column 1 with the correct description in Column 2: Column 1 Column 2 A. Condyle Very large, blunt projection (only on femur) Irregularly shaped B. Ramus Arm-like bar of bone C. Crest Round or oval opening D. Epicondyle Narrow ridge of bone E. Tubercle Rounded articular projection F. Tuberosity Sharp Slender Process G. Trochanter Canal-like passageway H. Meatus Shallow Depression I. Fossa Narrow, slit-like opening J. Fissure Raised area on or above a condyle K. Sinus Large rounded projection L. Groove Air filled cavity in a bone M. Head Smooth nearly flat articular surface N. Facet Bony expansion on a narrow neck O. Spine Projection or prominence P. Foramen Narrow ridge smaller than a crest Q.
    [Show full text]
  • Pg 131 Chondroblast -> Chondrocyte (Lacunae) Firm Ground Substance
    Figure 4.8g Connective tissues. Chondroblast ‐> Chondrocyte (Lacunae) Firm ground substance (chondroitin sulfate and water) Collagenous and elastic fibers (g) Cartilage: hyaline No BV or nerves Description: Amorphous but firm Perichondrium (dense irregular) matrix; collagen fibers form an imperceptible network; chondroblasts produce the matrix and when mature (chondrocytes) lie in lacunae. Function: Supports and reinforces; has resilient cushioning properties; resists compressive stress. Location: Forms most of the embryonic skeleton; covers the ends Chondrocyte of long bones in joint cavities; forms in lacuna costal cartilages of the ribs; cartilages of the nose, trachea, and larynx. Matrix Costal Photomicrograph: Hyaline cartilage from the cartilages trachea (750x). Thickness? Metabolism? Copyright © 2010 Pearson Education, Inc. Pg 131 Figure 6.1 The bones and cartilages of the human skeleton. Epiglottis Support Thyroid Larynx Smooth Cartilage in Cartilages in cartilage external ear nose surface Cricoid Trachea Articular Lung Cushions cartilage Cartilage of a joint Cartilage in Costal Intervertebral cartilage disc Respiratory tube cartilages in neck and thorax Pubic Bones of skeleton symphysis Meniscus (padlike Axial skeleton cartilage in Appendicular skeleton knee joint) Cartilages Articular cartilage of a joint Hyaline cartilages Elastic cartilages Fibrocartilages Pg 174 Copyright © 2010 Pearson Education, Inc. Figure 4.8g Connective tissues. (g) Cartilage: hyaline Description: Amorphous but firm matrix; collagen fibers form an imperceptible network; chondroblasts produce the matrix and when mature (chondrocytes) lie in lacunae. Function: Supports and reinforces; has resilient cushioning properties; resists compressive stress. Location: Forms most of the embryonic skeleton; covers the ends Chondrocyte of long bones in joint cavities; forms in lacuna costal cartilages of the ribs; cartilages of the nose, trachea, and larynx.
    [Show full text]
  • Introduction to Anatomy Skeletal System: Bone
    INTRODUCTION TO ANATOMY SKELETAL SYSTEM: BONE Foundation block - Anatomy - Lecture 1 Objective Color guide : •At the end of the lecture, students should be able to: Only in boys slides in Green • Define the word “Anatomy” Only in girls slides in Purple important and doctors note in Red • Enumerate the different anatomical fields Extra information in Blue • Describe the anatomical position • Describe different anatomical terms of position & movements as well different anatomical planes • Classify bones according to shape, structure & development • Enumerate different bones of both axial & appendicular skeleton ANATOMY & its Sciences. THE WORD ANATOMY is of GREEK origin meaning cutting up(ana=up,tomy=cutting). Girls slides DEFINITION OF ANATOMY: the science which deals with the study of, The structure & shape of the body parts & their relationships to one another. Boys slides ANATOMICAL SCIENCES: 1. Gross Anatomy: study of the human body with NAKED EYES 2. Microscopic Anatomy(Histology): Study of FINE STRUCTURE (cells & tissues) of the human body with the help of Microscope. 3. Developmental Anatomy (Embryology) 4. Radiologist Anatomy (study of the structure and morphology of the tissues and organs of the body based on their x-ray visualization). 5. Surgical Anatomy (practical) 6. Cross-sectional Anatomy (study of the relationship of the structures of the body by the examination of cross sections of the tissue or organ) 7. Applied Anatomy (study of the structure of the organs of the body as it relates to the diagnosis and treatment of disease)
    [Show full text]
  • Bone Markings / Features on Bones
    08/05/2016 Bone Markings : Skeletal System Search Custom Search Like Tweet Home Health News Human Body Biology Chemistry Glossary Textbooks Bone Disorders Ads by Google ► Bone Tissue ► Bone Marrow ► Human Skull Bone ► Bone on Bone Knee Sun 8 May 2016 Bone Markings / Features on Bones Human Body Study Section Bone markings and the features of bones (including the correct words used to describe them) are often required by first­level courses in human anatomy and associated health science subjects. It is important to be familiar with the terminology used to Human Body Index refer to bone markings in order to communicate effectively with professionals involved in healthcare, research, forensics, and Health Glossary related disciplines. More about Bones and the Skeletal System: The following terms used to describe bone markings or features on bones are in alphabetical order with short definitions: Human Skeleton Axial and Appendicular Word / Term Meaning / Description Type of Example(s) Skeleton (Bone Marking or bone The Structure and Feature) marking Functions of Bones Types of Bones 1. Angle A corner Feature of Inferior angle (lower) and superior angle (upper) are Bone Markings & Features shape of bone the rounded angles or "corners" of the scapula. on Bones Disorders of the Skeletal 2. Body The main portion of a bone The diaphysis of long bones such as the humerus. System Curvature of the Spine 3. Condyle Rounded bump or large rounded Process ­ The medial condyle of the femur (bone), upper­leg. prominence. Such rounded surfaces forms joints Types of Joints usually fit into a fossa on another bone to Specific bones: form a joint.
    [Show full text]
  • 16 Cartilage
    Cartilage Cartilage serves as a rigid yet lightweight and flexible supporting tissue. It forms the framework for the respiratory passages to prevent their collapse, provides smooth "bearings" at joints, and forms a cushion between the vertebrae, acting as a shock absorber for the spine. Cartilage is important in determining the size and shape of bones and provides the growing areas in many bones. Its capacity for rapid growth while maintaining stiffness makes cartilage suitable for the embryonic skeleton. About 75% of the water in cartilage is bound to proteoglycans, and these compounds are important in the transport of fluids, electrolytes, and nutrients throughout the cartilage matrix. Although adapted to provide support, cartilage contains only the usual elements of connective tissue cells, fibers, and ground substance. It is the ground substance that gives cartilage its firm consistency and ability to withstand compression and shearing forces. Collagen and elastic fibers embedded in the ground substance impart tensile strength and elasticity. Together, the fibers and ground substance form the matrix of cartilage. Cartilage differs from other connective tissues in that it lacks nerves, blood and lymphatic vessels and is nourished entirely by diffusion of materials from blood vessels in adjacent tissues. Although relatively rigid, the cartilage matrix has high water content and is freely permeable, even to fairly large particles. Classification of cartilage into hyaline, elastic, and fibrous types is based on differences in the abundance and type of fibers in the matrix. Hyaline Cartilage Hyaline cartilage is the most common type of cartilage and forms the costal cartilages, articular cartilages of joints, and cartilages of the nose, larynx, trachea, and bronchi.
    [Show full text]
  • The Epiphyseal Plate: Physiology, Anatomy, and Trauma*
    3 CE CREDITS CE Article The Epiphyseal Plate: Physiology, Anatomy, and Trauma* ❯❯ Dirsko J. F. von Pfeil, Abstract: This article reviews the development of long bones, the microanatomy and physiology Dr.med.vet, DVM, DACVS, of the growth plate, the closure times and contribution of different growth plates to overall growth, DECVS and the effect of, and prognosis for, traumatic injuries to the growth plate. Details on surgical Veterinary Specialists of Alaska Anchorage, Alaska treatment of growth plate fractures are beyond the scope of this article. ❯❯ Charles E. DeCamp, DVM, MS, DACVS athologic conditions affecting epi­ foramen. Growth factors and multipotent Michigan State University physeal (growth) plates in imma­ stem cells support the formation of neo­ ture animals may result in severe natal bone consisting of a central marrow P 2 orthopedic problems such as limb short­ cavity surrounded by a thin periosteum. ening, angular limb deformity, or joint The epiphysis is a secondary ossifica­ incongruity. Understanding growth plate tion center in the hyaline cartilage forming anatomy and physiology enables practic­ the joint surfaces at the proximal and distal At a Glance ing veterinarians to provide a prognosis ends of the bones. Secondary ossification Bone Formation and assess indications for surgery. Injured centers can appear in the fetus as early Page E1 animals should be closely observed dur­ as 28 days after conception1 (TABLE 1). Anatomy of the Growth ing the period of rapid growth. Growth of the epiphysis arises from two Plate areas: (1) the vascular reserve zone car­ Page E2 Bone Formation tilage, which is responsible for growth of Physiology of the Growth Bone is formed by transformation of con­ the epiphysis toward the joint, and (2) the Plate nective tissue (intramembranous ossifica­ epiphyseal plate, which is responsible for Page E4 tion) and replacement of a cartilaginous growth in bone length.3 The epiphyseal 1 Growth Plate Closure model (endochondral ossification).
    [Show full text]