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by BlastRoom
Ossification, the epiphyseal plate, calcium homeostasis and the stages of fracture repair.
#us_hs_anatomy_physiology
20 questions
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Before birth, the femur starts as a hyaline model that is broken down and replaced by osseous tissue. Which process is occurring?
The roof bones of a fetal skull form directly within fibrous connective tissue sheets, without a hyaline model. Which process produces them?
A child's humerus becomes wider as new matrix is laid on the outer surface under the periosteum. Which process explains the change?
In a fetal femur, bone first begins replacing the cartilage model in the middle of the diaphysis. What is this site called?
A newborn's skull has soft areas of fibrous membrane where the flat bones have not finished ossifying. What are these areas called?
A 14-year-old's femur is still lengthening each year. Where is new cartilage added before it is replaced by bone?
A hand x-ray after puberty shows epiphyseal lines and no remaining plates. What consequence follows for those long bones?
In a growing tibia, chondrocytes at the plate stop dividing prematurely. What change is most directly affected?
A teen's distal femur plate is damaged and closes early across the whole plate. What long-term effect is most likely in that bone?
After months of sprint training, a runner's tibial shaft thickens along repeated stress lines. Which cell activity accounts for this remodeling?
An astronaut loses mineral from the femur after weeks of microgravity. Which remodeling balance explains the loss?
Braces press on one side of a tooth socket while the opposite side is under tension. What happens on the pressure side?
A cast keeps an arm unloaded for six weeks, and nearby cortical bone becomes thinner. What change most directly triggered the thinning?
A patient's blood calcium falls to 7.8 mg/dL. Which hormone response helps restore the level toward normal?
A patient's blood calcium rises to 11.2 mg/dL. Which response would lower the level?
Lab results show low calcium and high parathyroid hormone. What kidney change helps conserve calcium?
Blood calcium is above normal, and thyroid C cells release calcitonin. What bone-cell activity helps lower the level?
Minutes after a radius fracture, the gap is filled with a clotted mass and swollen tissue. Which repair stage is this?
Two weeks after a tibia break, the gap is bridged by fibrocartilage and collagen. Which repair stage is occurring?
Six weeks after a clavicle break, the earlier bridge has been replaced by woven spicules of mineralized tissue. Which repair stage is this?
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Bones of the Skull, Named
40 questions
