Projectile trauma Flashcards
1
Q
What 3 aspects of projectiles determine the effects on bone?
A
- size: diameter, barrel size
- construction: profile
- velocity: speed
2
Q
What are the 3 types of bullet construction?
A
- full metal jacket
- semi jacket
- non jacketed (will deform, intended to stay in the body)
3
Q
What 2 ways do bullets travel?
A
- Rifling: maintains trajectory
- Tumbling: losing velocity and trajectory
4
Q
Distinguish inward vs outward bevelling?
A
inward: entry wound
outward: exit wound
5
Q
What are the 3 types of projectile profile?
A
- sharp
- blunt
- hollow point
6
Q
What does a round wound shape indicate?
A
angle of bullet and trajectory were perpendicular to bone surface
7
Q
What does an oval wound shape indicate?
A
- angle of trajectory is not perpendicular to bone surface
- bullet is tumbling
8
Q
What does a keyhole wound shape indicate?
A
angle of entry is acute
