Come Join the CU Boulder IPHY Club for the Kickoff Event WHEN 9 10 14 Wednesday 5 PM WHERE Clare 111 Come find out If IPHY is the right major for you How to get involved What the IPHY Tutoring Program is What IPHY Club events to expect Free Food and Drinks Connective Tissue Cartilage Bone and your skeletal system Study tip Don t recopy REORGANIZE instead Copyright 2005 Pearson Education Inc publishing as Benjamin Cummings Figure 6 1 1 Bone Cartilage in the adult skeleton and body Bones approx 206 in ADULT approximately 206 b Hard calcified matrix Calcium reservoir can release it when body is in need of calci Cartilage Provides flexibility Key Hyaline cartilages Elastic cartilages Fibrocartilages Bones Copyright 2005 Pearson Education Inc publishing as Benjamin Cummings Figure 6 1 1 Bone Cartilage in the adult skeleton and body Bones approx 206 in ADULT Hard calcified matrix Calcium reservoir Cartilage Provides flexibility Skeleton also includes nerves Key Hyaline cartilages Elastic cartilages blood vessels could als Fibrocartilages say muscle Bones epithelial tissues Figure 6 2a Types of cartilage tissue Cartilage is a Connective Tissue Chondrocyte Chondroblasts Extracellular Matrix 80 water What kind s of fibers can be secreted by the chondroblasts A Collagen reticular and elastic B Collagen and reticular C Collagen and elastic D Elastic only E No fibers are found in cartilage Figure 6 2a Types of cartilage tissue Chondrocyte in a lacuna Mature cell maintains matrix Chondroblasts Secrete collagen elastic fibers into matrix for support Extracellular matrix Lacuna Perichondrium dense irregular CT surrounds most of the cartillage provides strength Basics of cartilage chondrocyte Extracellular matrix cartilage Chondroblasts found at margin between PC perichondrium perichondrium and cartilage http www courseweb uottawa ca medicine histology English Musculoskeletal default htm cb chondroblast bv blood vessel Figure 6 1 1 Cartilages in the adult skeleton and body 3 types of cartilage 1 Hyaline 2 Elastic 3 Fibrocartilage Articular cartilage of a joint Cartilages in nose Articular cartilage of a joint Costal cartilage Key Hyaline cartilages Elastic cartilages Fibrocartilages Figure 6 1 2 Cartilages in the adult skeleton and body Thyroid cartilage Cricoid Larynx Trachea Key Hyaline cartilages Respiratory tube cartilages in neck and thorax Elastic cartilages Fibrocartilages Fig 4 12g Hyaline Cartilage Most abundant Mostly collagen fibers Firm matrix that resists compression Copyright 2005 Pearson Education Inc publishing as Benjamin Cummings Figure 6 2a Types of cartilage tissue HYALINE CARTILAGE Chondrocyte in a lacuna Extracellular matrix Chondroblasts Lacuna Perichondrium Figure 6 1 1 Cartilages in the adult skeleton and body Epiglottis Cartilage in external ear Key Hyaline cartilages Elastic cartilages Fibrocartilages 3 types of cartilage 1 Hyaline 2 Elastic 3 Fibrocartilage Fig 4 12h Elastic Cartilage Mostly elastic fibers but some collagen Able to withstand repeated bending Found in epiglottis and external ear Figure 6 1 1 Cartilages in the adult skeleton and body 3 types of cartilage 1 Hyaline 2 Elastic 3 Fibrocartilage Cartilage in intervertebral disc Meniscus padlike cartilage in knee joint Pubic symphysis Key Hyaline cartilages Elastic cartilages Fibrocartilages Fig 4 12i Fibrocartilage Higher concentration of collagen fibers than hyaline no elastic it has displa Strong resists tension and absorbs compressive forces Fig 7 14 Intervertebral disc Fibrocartilage portion of disc Copyright 2005 Pearson Education Inc publishing as Benjamin Cummings Cauliflower ear A blow to the ear can result in the perichondrium separating from the deeper elastic cartilage resulting in a hematoma and swelling Cut off from its nutrient source the cartilage dies and permanent scar tissue fibrous CT forms in the damaged region BONE the skeleton Copyright 2005 Pearson Education Inc publishing as Benjamin Cummings Figure 6 1 1 Bone Cartilage in the adult skeleton and body Functions associated w skeleton Support Framework support for soft tissues Movement Works w muscular system Muscles attached to it are allowed to move Protection Hard covering for brain spinal cord other organs lungs and heart in ribcage Mineral reservoir Minerals including Ca and phosphates Key Hyaline cartilages stored in matrix of bone Elastic cartilages Hemopoiesis hematopoiesis Fibrocartilages Houses red bone marrow which produces new red blood cells Endocrine function Osteoblasts secrete hormone that helps regulate blood sugar levels Bones as organs Epithelial tissue blood vessels nerves Connective tissue Bone CT has hard calcified matrix mineral storage Dense CT www personal psu edu staff m b mbt102 bisci4online bone bone4 htm Copyright 2005 Pearson Education Inc publishing as Benjamin Cummings Classification of Bones by shape Copyright 2005 Pearson Education Inc publishing as Benjamin Cummings Figure 6 2 Flat irregular short bones Spongy bone sandwiched between 2 layers of compact bone Copyright 2005 Pearson Education Inc publishing as Benjamin Cummings Figure 6 The structure of a long bone humerus Spongy bone Proximal epiphysis May contain red bone marrow which actively generates RBCs red blood cells Compact bone Diaphysis shaft Distal epiphysis Medullary cavity Yellow bone marrow Adipocytes fat cells Replaces red bone marrow btwn ages 8 18 Endosteum Dense CT Osteogenic Osteoblasts osteoclasts Yellow bone marrow fat rich that gives its yellow appearance Compact bone Section through head of femur showing compact bone spongy bone and red bone marrow Compact bone Spongy bone containing red bone marrow http www websters online dictionary org definitions Bone 20Marrow What type of cartilage would you expect to find on the epiphysis of a long bone A Elastic B Hyaline C Fibrocartilage D Areolar E Dense irregular Copyright 2005 Pearson Education Inc publishing as Benjamin Cummings Figure 6 4 The structure of a long bone humerus Articular cartilage Hyaline cartilage Epiphyseal line Spongy bone Epiphyseal plate cartilage Hyaline cartilage Epiphyseal plate growth plate site of active growth in long bone Epiphyseal line ossified growth plate forms when growth complete Epiphyseal Fusion A General Guide Do NOT memorize this guide Human Anatomy 5e by Marieb Mallatt and Wilhelm Copyright 2008 Pearson Education Inc publishing as Benjamin Cummings Figure 6 11 Organization of the cartilage within the epiphyseal plate of a growing long bone 80 X