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Bone & Tissue Injury
Question | Answer |
---|---|
Acute/Inflammatory Phase | 1st phase of bone healing; bleeding occurs at the injury site |
Repair & Regeneration Phase | 2nd phase of bone healing; osteocytes work to support the bone. A callus forms along the fracture site closing the bone structure. Usually takes 4-6 weeks. |
Remodeling Phase | 3rd phase of bone healing; can take up to a year or more. Osteocytes work to replace the immature, calcified area with a more bone-like structure. |
Incision | Precise even cut |
Laceration | Cut involving more tearing of the skin, irregular in shape |
Avulsion | Tissue is torn away |
Puncture | A hole is pierced in the skin; very little bleeding |
Neuron | Nerve cell |
Afferent Neuron | Sensory nerve |
Efferent Neuron | Motor nerve |
Nerve Healing | VERY SLOW PROCESS; if nerve is completely severed no healing will occur - new pathways must be created. |
Myelin Sheath | Protective covering on the axon which has an electrical charge |
Axon | Nerve signal pathway; connects nerve cell to dendrites |
Hyperesthesia | Heightened sensation |
Hypoesthesia | Lowered sensation |
Paraesthesia | Temporary, partial or transient loss of sensation |