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45 Cards in this Set
- Front
- Back
spongy bone contains osteons? T/F
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FALSE
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Irregular lattice appearance of spongy bone?
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trabeculae
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The trabeculae of spongy bone collects yellow bone marrow? T/F
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FALSE
-RED BONE MARROW- site of new blood cell formation- |
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Another name for spongy bone?
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cancellous bone
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Bone is very abundant in nerve supply but not blood supply? T/F
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FALSE
-very abundant in blood and nerve supply- |
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Process by which bone forms?
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Ossification
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Type of ossification where bone forms directly within mesenchyme arranged in sheetlike layers resembling membranes?
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intramembranous ossification
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Type of ossification where forms within hyaline cartilage that develops from mesenchyme?
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endochondral ossification
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Where would intramembranous ossification take place?
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in utero; flat bones of skull & mandible
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Bone growth in length is called?
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interstitial growth
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Bone growth in width is called?
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appositional growth
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The Zone of resting cartilage is the layer that anchors to the diaphyses? T/F
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False
Anchors to the epiphysis |
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Where is the ONLY place bone can grow in length?
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epiphyseal plate
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NAME THAT ZONE:
column-like layer of maturing chondrocytes? |
Zone of hypertrophic cartilage
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NAME THAT ZONE:
layer of small, scattered chondrocytes anchoring the epiphyseal plate to the bone? |
Zone of resting cartilage
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NAME THAT ZONE:
layer of actively dividing chondrocytes? |
Zone of proliferating cartilage
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NAME THAT ZONE:
region of dead chondrocytes? |
Zone of calcified cartilage
where it forms "new diaphysis" |
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*About what age does a person's bones stop growing?*
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*AGE 25*
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The _________is the last bone to stop growing?
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clavicle
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The ongoing replacement of old bone tisue by new bone tissue?
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bone remodeling
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The removal of minerals and collagen fibers from bone by osteoclasts?
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bone resorption
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The addition of mineral and collagen fibers to bone by osteoblasts?
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bone deposition
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What two minerals are needed (in large amounts) while bones are growing?
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calcium and phosphorus
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Required for collagen synthesis?
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Vitamin C
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Required for protien synthesis?
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Vitamins K & B12
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Which is not a factor of bone growth & bone remodeling?
A.family history B.minerals C.hormones D.vitamins |
A. family history
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Any break in a bone?
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fracture
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Type of fracture where the broken ends of the bone protrude through the skin?
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Open fracture
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type of fracture that does not break the skin?
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closed fracture
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Fracture where the bone splinters at the site of impact;smaller bone fragments lie b/t the two main fragments?
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comminuted fracture
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A partial break in a bone in which one side is broken and the other side bends?
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greenstick fracture
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A fracture of the distal end of the lateral leg bone (fibula)?
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pott's fracture
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A fracture of the distal end of the lateral forearm bone (radius); distal fragment is displaced posteriorly?
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colles' fracture
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Place bone fracture repair in order?
1.bone remodeling 2.fibrocartilaginous callus formation 3.fracture hematoma |
3.
2. 1. |
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This hormone increases blood calcium (Ca2+) level?
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parathyroid hormone (PTH)
-secreted by the parathyroid glands- |
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This hormone decreases blood calcium (Ca2+) level?
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calcitonin (CT)
-secreted by thyroid gland- |
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A condition of porous bones characterized by decreased bone mass and increased susceptibility to fractures?
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osteoporosis
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Condition characterized by failure of new bone formed by remodeling to calcify in adults?
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osteomalacia
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Affects the growing bones of children?
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rickets
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A degeneration of articular cartilage allowing the bony ends to touch; worsens due to friction b/t bones?
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osteoarthritis
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Infection of bone caused by the bacteria staphylococcus aureus?
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osteomyelitis
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Micrscopic unit of compact bone?
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osteon (haversian system)
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unspecialized stem cells deerived from mesenchyme?
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osteogenic cells
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Another name for compact bone?
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Dense bone
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Spongy bone DOES NOT contain osteons? T/F
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True
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