Please enable JavaScript.

Coggle requires JavaScript to display documents.

Skeletal system Leslie Valle P.1 - Coggle Diagram

- - - - Epiphyseal line: remnant of childhood epiphyseal plate where bone growth occurs
        
        Periosteum: outer membrane with blood vessels and bone-forming cells
        
        Endosteum: membrane lining internal bone surfaces
        
        Compact bone: dense outer layer on every bone, appears smooth and solid
        
        Spongy bone: made up of a honeycomb of small, needle-like or flat pieces of bone called trabeculae
        
        Medullary cavity: central cavity in the shaft
        
        1 more item...
- - - - Osteocytes: maintain bone matrix and act as stress sensors and respond to mechanical stimuli
        
        Bone-lining cells: flat cells on bone surfaces and help maintain matrix
        
        Osteoclasts: derived from Same hematopoietic stem cells that become macrophages, destroys bones
        
        Compact bone: osteon, consisting of an elongated cylinder that runs parallel and lamellae collagen fiber rings to withstand stress and canals, contains blood vessels and nerves fibers and canaliculi, connect lacunae to each other and central canal
        
        Spongy bone: help bone resist any stress, trabeculae confer strength to bone, no osteon are present, but trabeculae contains lamellae and osteocytes
- - - - Consists of both bone deposit and bone resorption
        
        Bone resorption: a function of osteoclasts, dig depressions or groves as they break down matrix, acidity converts calcium salts to soluble forms
        
        Bone deposit: new bone matrix is deposited by osteoblasts
- - - - Synchondroses: a bar or plate of hyaline cartilage unites the bones, almost all are synarthrotic(immovable)EX: temporary epiphyseal plate joints
      - Symphyses: a joint is which the bones are connected by fibrocartilage, strong, amphiarthrotic(slightly movable) EX: intervertebral joints
    - - Articular cartilage: consists of hyaline cartilage cover ends of bones, prevents crushing of bone ends
        
        Synovial fluid: joint-lubricating fluid secreted by the synovial membrane
        
        joint(synovial) cavity: small,fluid-filled potential space that is unique to joints
        
        Articular(joint)capsule: two layers thick, external is dense irregular and inner loose connective tissue
        
        Articular discs(menisci): Fibrocartilage separates articular surfaces to improve "fit" of bone
        
        Fatty pads: cushioning between fibrous layer of capsule and synovial membrane
        
        1 more item...
    - - 3 types
        
        Syndesmoses: a joint in which the bones are united by a ligament or sheet of fibrous tissue, fiber length varies so movement varies EX: interosseous membrane connecting radius and ulna
        
        Gomphoses: peg-in-socket fibrous joint EX: holds tooth in socket
        
        Sutures: rigid, interlocking joints containing short connective tissue fibers, allowing growth drowning youth EX: coronal suture in the skull