Injury and Inflammation

What is the difference between acute and chronic injury?

• Acute injuries occur from prolonged over-use, while chronic injuries result from a specific event.

• Acute injuries have a sudden onset and are traced to a specific event, while chronic injuries occur from prolonged over-use.

• Acute injuries are caused by biomechanical issues, while chronic injuries are the result of improper form or technique.

• Acute injuries are characterized by sudden onset of symptoms, while chronic injuries have a definite time of occurrence.

Give 2 examples of acute injury.

• Achilles tendinitis, Jumpers knee

• Achilles tendinitis, Shin Splints

• Sprained ankle, Torn ACL

• Achilles tendinitis, Jumpers knee

What is inflammation?

• The body's normal response to injury that attempts to minimize further tissue damage.

• The process of repairing damaged tissue through the formation of scar tissue.

• The body's response to chronic injuries that persist over an extended period of time.

• The process of regaining adequate blood flow to damaged tissues.

Tags

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What are the signs of inflammation?

• Pain, swelling, heat, redness, and loss of function.

• Pain, swelling, loss of function, and decreased activity.

• Swelling, heat, redness, and loss of function.

• Swelling, heat, redness, and decreased activity.

What is the purpose of pain in the inflammatory response?

• To encourage increased activity and promote healing.

• To indicate that damage has occurred and encourage decreased activity for proper healing.

• To hinder the healing process and prolong recovery.

• To reduce inflammation and minimize secondary issues.

What causes swelling in the inflammatory response?

• Initial trauma, damaged cells retaining intracellular fluid, cellular debris, and blood vessel vasoconstriction.

• Initial trauma, damaged cells losing intracellular fluid, cellular debris, and blood vessel vasodilation.

• Initial trauma, damaged cells retaining intracellular fluid, cellular debris, and blood vessel vasodilation.

• Initial trauma, damaged cells losing intracellular fluid, cellular debris, and blood vessel vasoconstriction.

What is the purpose of myoblasts?

• The purpose of myoblasts is to develop into mature muscle fibers and contribute to regeneration of connective tissue & muscle tissue.

• The purpose of myoblasts is to produce hormones that regulate muscle growth.
• The purpose of myoblasts is to store energy for muscle contraction.
• The purpose of myoblasts is to protect muscles from injury.

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When can a nerve cell NOT regenerate itself?

• When the injury affects the cell body

• when the injury only affects the axon

• when the injury only affects the dendrites

• nerve cells can never regenerate themselves

What is the purpose of controlled motion during the remodeling phase?

• To prevent the formation of adhesions and strengthen collagen fibers.

• To decrease blood flow and limit swelling.

• To promote secondary cell death and encourage extracellular drainage.

• To normalize blood flow and initiate the regeneration of damaged tissues.

What is the main component of scar tissue?

• Collagen

• Fibroblasts

• Macrophages

• Neutrophils