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Mindmap

Tissues: Connective Tissue

Christopher Grund Anatomy and physiology Englisch

Inhalt der Mindmap

Tissues: Connective Tissue

  • most abundant and widely distributed of primary tissues
  1. General Function of Connective Tissue

    • binding and support
    • protecting
    • insulating
    • storing reserve fuel
    • substance transport (blood)
  2. Main Classes

    • Connective Tissue Proper
      • All connective tissue except for bone, cartilage, and blood.
      • loose connective tissue
        • areolar
          • functions
            • reservoir of water and salts
            • edema
              • when area is inflamed it soaks up excess fluid and the area swells and becomes puffy
            • supports and binds other tissues
            • defends against infection with viscous ground substance
            • store nutrients as fat
          • structure
            • gel-like matrix
            • has all three fiber types
            • fibroblast
            • macrophages
            • mast cells
            • some white blood cells
          • locations
            • under epithelial tissue of body
            • surround capilaries
            • form lamina propria of mucous membrane
            • packages organs
        • adipose
          • structure
            • mass is 90% adiposecytes
              • stores nurients
            • similar to areolar, but with greater energy storage
            • brown fat
              • found in babies that do not have the ability to create heat by shivering. They use fat to warm the blood stream
            • small quantity of matrix
            • very vascularized
            • nucleus push to the side
          • function
            • shock absorption
            • insulation
            • energy storage
          • locations
            • subcutaneous tissues
            • around kidneys and eyeballs
            • abdomen
            • breast
        • reticular
          • structure
            • matrix made of only reticular fibers
            • fibroblast
              • called reticular cells in this connective tissue
          • function
            • support of free blood cells in
              • spleens
              • lymph nodes
              • bone marrow
      • fibrous/dense connective tissue
        • dense regular connective tissue
          • structure
            • fibroblast
              • continuously manufacture fibers and ground substances
            • parallel collagen fibers
              • in direction that pull would occur
              • wavy
                • allows some stretch
            • poor vascularization
          • function
            • attaches muscles to bone
            • attaches muscles to muscles
            • attaches bone to bones
            • resist tensile strength in one direction
          • location
            • tendons
              • forms tendon which attach muscles to bones
            • ligaments
              • bind bones together at joints
            • aponeuroses
              • attach muscles to bones or other muscles
        • dense irregular connective tissue
          • structure
            • same as dense regular but collagen fiber is much thicker and fibers are arranged in irregular direction
              • arrangement of collagen fibers allows for resistance of tension from many directions
          • function
            • resist tension from many directions
            • provide structural strength
          • location
            • fibrous capsules of organs and of joints
            • subcumosa of digestive tract
            • dermis of the skin
        • elastic
          • structure
            • high proportion of elastic fibers
          • functions
            • recoil of tissue
            • aids in recoil of lungs
          • location
            • lungs
            • large arteries
    • Cartilage
      • resist both tension and compression forces
      • general structure
        • avascular
          • Nutrients diffuse from the connective tissue membrane which surrounds it (perichondrium)
        • no nerve fibers
        • ground subsance
          • collagen fibers
          • firm
          • matrix contains a lot of fluid
            • matrix is up to 80% water
          • cell types
            • chondroblast
              • predominate immature cell type. produces new matrix until skeleton stops growing.
            • chondrocytes
              • mature cartilage cells
      • types of cartilage
        • hyaline
          • most abundant cartilage type
          • structure
            • chondrocytes
              • lie in lacunae
            • chondroblast
              • form the matrix
            • amorphous but firm matrix
            • only collagen fibers
          • function
            • reinforcement
            • support
            • cushion
            • compression resistance
          • location
            • embryonic skeleton
            • end of long bones in joint cavities
            • coastal cartilage ribs
            • nose
            • trachea
            • larynx
        • elastic
          • structure
            • similar to hyaline but more elastic fibers
          • function
            • maintain shape
            • strength with flexibility
          • location
            • ear
            • epiglottis
        • fibrocartilage
          • structure
            • rows of collagen fibers
            • rows of chondrocytes
          • location
            • intervertebral disc
            • miniscus of knee joint
            • pubic symphysis
          • function
            • tensile strength
            • absorption of compression shock
    • Bone
      • also called osseous tissue
      • structure
        • vascular
        • collagen
        • inorganic calcium salts
        • osteoblast
          • produce organi portion or cartilage of the matrix
        • osteocytes
        • osteons (regions)
          • concentric rings of bony matrix surrounding central canals containing blood vessels and nerves
        • blood vessels
        • nerves
      • functions
        • support
        • protection
        • store calcium
        • store fats
        • store other minerals
        • blood formation by bone marrow
      • location
        • bones
    • Blood
      • fluid within blood vessels
      • structure
        • fluid
        • blood plasma is matrix
          • blood plasma is non-living. 
        • mostly red blood cells
        • white blood cells
        • fibers
          • proteins that are used during blood clotting
      • function
        • transportation of substances
          • gases
          • nutrients
          • waste
          • etc
  3. General Characteristics of Connective Tissue

    • tissue originates from mesenchyme
      • an embryonic tissue
    • vary degree of vascularity
    • composed mostly of extracellular matrix
      • matrix allows connective tissue to bear weight, withstand great tension, endure other abuses
      • nonliving
  4. Structural Elements of Connective Tissue

    • the %composition varies in different connective tissues
    • ground substance
      • unstructured substance that fills space between cells. 
      • medium
        • substance diffuse through blood capillaries and cells
      • components
        • interstitial fluid
          • tissue that bathes and surrounds the tissue cells of multicellular animals
        • cell adhesion proteins
          • allow connective tissue to attach themselves to the matrix elements 
        • proteoglycans
          • something about the polysaccharides aggregated together to trap water creating a fluid to viscous gel
    • fibers
      • provide support
      • Types
        • Collagen Fibers
          • most abundant of the fiber types
          • tensile strength
            • longitudinal strength
          • strongest fiber
        • Elastic Fibers
          • form branching networks in the extracellular matrix. This branching allows stretch and recoil of connective tissue
        • Reticular Fibers
          • short, fine, highly branched collagen fibers. branch forming networks
    • cells
      • Blast CElls
        • Immature form of cell. It is mitotically and secrete ground substances and fibers
        • Fibroblast
          • connective tissue proper
        • Chondroblast
          • cartilage
        • Osteoblast
          • bones
      • cyte cells
        • mature form the cells in connective tissue. They maintain the health of the matrix and mitotically divide to repair the matrix if it becomes injured
        • chondrocyte
          • in cartilage
        • osteocytes
          • in bones
      • other cells in connective tissue
        • fat cells
          • store nutrients
        • white blood cells
          • tissue response to injury
          • neutrophil
          • eosinophils
          • lymphocytes
        • mast cells
          • initiate local inflammatory response against foreign microorganisms they detect
        • macrophages
          • phagocytic cells that eat dead cells, microorganisms, and function in the immune system

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Beschreibung
Anatomy and physiology (tissues) Mindmap am Tissues: Connective Tissue, erstellt von Christopher Grund am 03/03/2017.
Erstellt von
Christopher Grund
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