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JessicaNyquistSkeletalJointsMuscles (Skeletal System/Tissues (Components…
JessicaNyquistSkeletalJointsMuscles
Joints
Fibrous Joints
Sutures
Syndesmosis
Gomphosis
Cartilaginous Joints
Synchondroses
Symphyses
Synovial Joints
Synovial Joints Structure
Articular cartilage
Joint cavity
Articular capsule (synovial membrane + fibrous layer)
Synovial fluid
Reinforcing ligaments
Nerves & Vessels
Skeletal Muscle
Functions
Produce movement
open and close body passsage ways
maintain posture & stabilize joints
generate heat
Properties
contractility
excitability
exgtensibilitiy
elasticity
Connective Tissue Layers
endomysium
perimysium
epimysium
deep fascia
Skeletal Fiber Componentsterminal cisterns
myofibrils
transverse tubules
sarcolemma
sarcoplasmic reticulum
sarcomere
Skeletal System/Tissues
Functions
Provide Support
Vitamin D
Mineral Storage
Temperature regulation
Compact Bone Characteriscs
outer part of every bone
osteons packed together
blood vessels between central canals
Bone Structure
Epiphysis
Ends
Diaphysis
Shaft
Red Marrow
Found in kids until 7 years of age.
Yellow Marrow
Spongy Bone
Compact Bone
Spongy Bone Characteristics
no osteons
trabeculae
osteocytes
extracellular matrix
location of red bone marrow
located inside long bone ends
Components of Long Bones
longer than they are wide
have epiphysis
have diaphysis
articular cartilage
epiphyseal line (hyaline cartilage)
medullary cavity
endosteum lines medullary cavity
periosteum covers entire bone
Marrow
Red Bone Marrow
gelatinous
place of blood cell formation
in adult vertebrae, coxal bones, sternum & ribs
Yellow Bone Marrow
After 7 years of age
nutrient storage
Bone Cells
osteogenic cells (stem cells)
osteoblasts
osteocytes
osteoclasts