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26 Cards in this Set
- Front
- Back
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Skeletal System Functions (5)
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Support
Protection Movement Storage Blood cell production |
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W/I Skeletal System Functions: 3 components of Support
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Bone -hard/rigid
Cartilage - flexible/strong Ligaments - bone to bone |
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W/I Skeletal System Functions: Protection
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skull, ribs, sternum, vertebrae
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W/I Skeletal System Functions: Movement produced by?
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Muscles on Bones via tendons
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W/I Skeletal System Functions: Storage by ?
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Ca and P -Stored and released as needed.
Fat stored in marrow cavities (can be diff types eg. yellow= fat ) |
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Blood Cell production by?
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Red Bone Marrow - gives rise to blood cells and platelets
found in some irregularly shaped bones |
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Cartilage is vascular or non vascular?
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Non- vascular
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Bone are Cartilage are both ____ connective tissues
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SUPPORTIVE
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Resilient means?
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you can push on it and it returns to its original shape
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Cartilage is made up of (2)
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Cartilage cells & matrix (70-85% water, protein, ground substance)
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Cartilage has what types of proteins? (3)
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Hyaline, Elastic, and Fibrocartilage
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Which protein is most closely associated with bone/ is the type of cartilage that made up the embryonic skeletal system?
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Hyaline
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When bone is being repaired it is first ____?
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Cartilage
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Elastic cartilage can be found in?
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Ear - more flexible
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The main component of cartilage between the vertebrae, found in knee joints and other weight supporting areas is ___?
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Fibrocartilage - because strongest type
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Cartilage has one main cell type called?
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Chondrocyte
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Chondroblast = ?
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immature cells that can secrete matrix (collagen, proteoglycans)
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Chondrocyte = ?
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A mature cell that maintains tissue
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Chondrocytes located in ?
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Lacuna
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Perichondrium = ?
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double layer of Connective TIssue that covers most of cartilage - has nerve and blood supply
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Outer layer of Perichondrium contains which type of cells?
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Fibroblast cells
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Fibroblast cells secrete __?
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Collagen
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Inner layer of Perichondrium contains which type of cells?
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Chondroblasts
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What types of cartilage has no perichondrium?
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Articular and Fibrocartilage
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Appositional Growth is...
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when chondroblasts secrete and surround themselves with matrix and once complete becomes a chondrocyte. Growth on OUTSIDE of cartilage tissue. (still underneath fibroblast top layer though)
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Interstitial growth is ...
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chondrocytes divide and still maintain ability to secrete matrix between the two cells. and row from within. expand from inside out.
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