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the bone system - Coggle Diagram

- - - - Hyaline is a glossy cartilage and is the weakest of the 3 types of cartilages. it is commonly found in the trachea, ribs and nose.
      - Fibro is the strongest kind of cartilage, and has thick layers of dense collagen fibbers. they are found in ligaments (a band of strong connective tissue) and discs.
      - elastic cartilage works in a thread-like network, to maintain shape of a certain structure. it provides strength and flexibility, and is found in the external ear.
    - - synovial fluid in simple language is fluid that prevents the bone from experiencing any friction.
- - - - in a joint the articular cartilage and the synovial fluid in the synovium restrict friction. the synovium is the inner lining of joint space made of a bunch of connective tissues, and vessels, and has type a cells (clears cellular debris) and type b cells (that creates the synovial fluid).
  - - - when this happens the trabeculae (structural support system making up spongy bone) become thin and less numerous. The cortical bone also thins and the Haversian canals widen.
        
        in postmenopausal, the estrogen levels drops, causing the production of osteoclasts to go on a overdrive. when the osteoclasts go on overdrive, the women are losing more bone compared to regaining bone, raising risks of osteoporosis.
        
        for senile osteoporosis, osteoblasts slowly lose the ability to rebuild bone, but the osteoclasts keep getting rid of bone in the same pace, causing loss of bone mass.
- - - - Lacunae is the empty space between the Lamellae. it provides a home for the bone cells, while also keeping them alive and functional.
        
        Osteoblasts and Osteoclasts are cells that have to be balanced in a normal functioning adult. Osteoblasts are cells that help form new bones and help fix existing bones. Osteoclasts are cells that dissolve old and damaged bone tissues so they can be replaced.
        Osteoclasts work with the help of enzymes (to remove the collagen scaffold) and acid (to remove calcium phosphate).
        
        then there are Lining cells that cover inactive bone surfaces (ones that are not getting remodeled or dissolved.)
        Lastly, Osteocytes are bone cells that got trapped under new fully-formed bones. they maintain the communication between cells in the bone.
        
        lastly the Periosteum is a thin layer surrounding the bone protecting it.
        
        When the bone is functioning normally, there is a balance between Osteoblasts remodeling bones and Osteoclasts dissolving old bone. when the balance is broken, the function and density could decrease.