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connective tissue (functions (support & protection, transport…

- - - - fibroblasts
        
        produce connective tissue fibers
      - macrophages
        
        mobilize immune system
        
        engulf hurt cells
      - fat cells
        
        contains lipids
      - mast cells
        
        defensive cells after injury or infection
    - - dense
        
        tough, strong, durable
        
        resist tension, forms a capsule that encloses joint cavities
        
        regular
        
        location: tendons, ligaments, aponeurosis
        
        function: support other tissues but mainly in one direction because the fibers all runn in one direction
        
        irregular
        
        location: dermis, fibrous capsules, fascia
        
        function: dense irregular tissue functions
      - loose
        
        the packing material of the body
        
        they fill spaces between organs, provide cushioning, and support epithelia
        
        areolar
        
        separates skin from muscles around blood vessels under skin
        
        provides strength, support, elasticity, and supports the immune system
        
        apidose
        
        includes many fat cells around organs
        
        provides protection, stores energy, and insulates
        
        elastic
        
        wall of arteries, trachea, bronchial tree
        
        function: provides stretch
        
        reticular
        
        supports and holds organs together and apidose tissue
        
        location: around organs such as the liver, kidney, spleen, and lympth organs
  - - - blood
      - lymph
    - - red blood cells make up almost half of the volume of blood
  - - - bone
      - cartilage
        
        contain chondrocytes and live in lacunae
        
        3 different types
        
        hyaline cartilage
        
        most common type, contains closely packed collagen fibers, flexible
        
        found in sternum, and ribs, respiratory tract, ends of bones/joints
        
        elastic cartilage
        
        very flexible, forms outer ear, epiglottis, and airway to middle ear
        
        fibrous cartilage
        
        aka fibrocartilage, dominated by collagen fibers, densley interwoven, very tough
        
        found between vertebrae in spine, pubic bones of pelvis, around a few joints and tendons.