The Physics of Gunshot Injuries

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These flashcards cover essential concepts related to the medical applications of physics in the context of gunshot injuries, including bullet mechanics, injury types, and energy transfer.

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10 Terms

1
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What are the main differences between rifles and handguns?

Rifles usually contain more chemical propellant and have thicker barrels that withstand higher pressures compared to handguns.

2
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What does Kinetic Energy (KE) depend on in terms of bullet impact?

The KE of the bullet, which is defined as ½mv², depends on the mass and velocity of the bullet.

3
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What factors influence the severity of gunshot wound injuries?

The severity is influenced by Kinetic Energy transfer from the bullet to the victim, velocity of impact, and types of bullets.

4
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What is precession in the context of bullets?

Precession refers to the rotation of the bullet around its center of mass, impacting its accuracy and the characteristics of the wound.

5
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What distinguishes hollow point bullets?

Hollow point bullets are designed to deform on impact, expanding outwards to cause more serious injuries.

6
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What happens to bullets traveling at subsonic speeds?

Low velocity bullets generally produce laceration and crushing with minimal surrounding tissue displacement.

7
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What effect do high-velocity bullets have on tissue?

High-velocity bullets create shock waves that can cause damage even without direct contact with the projectile.

8
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What is the significance of cavitation in gunshot injuries?

Cavitation refers to the temporary cavity formed by the bullet passing through, which can stress tissue beyond its elastic limit.

9
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How does bullet design influence injury severity?

The design of a bullet, such as jacketed versus soft-nosed, affects its ability to transfer energy and create damage upon impact.

10
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What is the relationship between bullet velocity and tissue damage?

With increased bullet velocity, the severity of injury typically increases due to greater energy transfer and shock wave effects.