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Skeletal System and Joint (Components of a typical long bone (Epiphysis,…
Skeletal System and Joint
Components of a typical long bone
Epiphysis
the end part of a long bone
Diaphysis
the shaft or central part of long bones
Articlular cartilage
smooth and white tissue that cover the end of the bones
Spongy bone
highly vascularized and contains red bone marrow
Periosteum
Dense layer of vascular connective tisse
Perforating fibers
a matrix of connective tissue
Compact bone
a denser material used to create much of the hard structure of the skeletn
Medullary cavity(Marrow cavity)
the central cavity of bone shafts where red bone marrow and yellow bone marrow
Nutrient artries
the vascular membrane lining the medullary cavity
Endosteum
a thin vascular membrane of connective tissue
Different Type of Bone
Osteogeniz
located in periosteum and in endosteum
Osteoblast
Create bone extracellular matrix in growing bone + remodeling bone
Osteocytes
Maintain healthy bone tissue
Osteoclast
Origin is a type leucocyte 5-20 cells that fuse together to form
Break down bone by secrets enzymes through microvilli
Type of Bone tissue
Compact bone
Composed of osteons packed together
Spongy bone
No osteon
Fibrous jounts
Suture
very short interconnecting fibers
location: skull only
movement- no movement (in adults)
Sysdesmosis
short connecting fibers
location: distal tibiofibular
movement- little movement
Gomphosis
Short connecting fibers called Periodental ligaments
location: where teeth and mandible/maxilla
movement: no movement
Cartilaginous joints
Synchondrosis
Hyaline cartilage
location: epiphyseal plates
movement-no movement
Symphysis
location: intervertebral joint + pubiz symphysis
hyaline cartilage + fibrocartilage
movement- little movement
Synovial joints
D.I.C.T
continuous with the periosteum
Areolar c.t
synovial membrane- produce synovial fluid to fill the joint cavity
Fibrocartilage
menisci of knee
TM Joint
piece of hyaline cartilage that divides a joint
Bursa(e)
Synovial membrane in a sac
filled with synovial fluid