1. Aaron Carpenter Tyler Billings
Blunt Force Injuries
Aaron Carpenter
Tyler Billings

2. Blunt Force Injuries
Blunt Force Injuries – wounds that are the result of blunt impact, such as tearing, crushing, or shearing
There are three types of blunt force injuries
Contusions
Lacerations
Abrasions

3. Contusions
Contusion: bleeding into skin or soft tissue due to ruptured blood vessels
A contusion signifies hemorrhage into the skin, the tissues, or both
Better known as a bruise
Coloring of bruise can be used to determine its age
The amount of force applied can have an impact on the appearance of the bruise
Children bruise easier than adults
The coloring of a bruise typically changes from a light bluish-red color, to dark purple, to green, to yellow, and then finally to brown….

4. Lacerations Laceration: tear in tissue due to blunt force injury
Lacerations are often jagged or irregular in appearance
Lacerations are often characterized by an incomplete separation between tissue, such as blood vessels and nerves
Tissue bridging is often a result of the incomplete separation between tissue
Lacerations are often found over bony prominences
Various sizes and shapes
Scalp lacerations can be caused when the hair is caught in moving machinery parts, vehicle tires, wheels, and other rotating things. The rotational movement of these things tear the scalp from the skull, and forms a flap laceration.

5. Abrasion
Abrasions – An injury that typically involves only the superficial layers of the epidermis
Types
Scratches – Caused by a sharp object passing across the skin
Examples (fingernails, a pin, a thorn)
Grazes- Caused by movement between skin and a rough surface that it comes into contact with
show longitudinal parallel lines with skin heaped up at ends that are indicative of the direction that the force was applied
most common type of abrasion
Example (falling on the ground)
Pressure Abrasions- Caused by the crushing of the superficial layers of the epidermis
associated with bruising in the surrounding areas

6. Raccoon Eyes Caused by a basilar skull fracture
It can be unilateral or bilateral (one or two eyes)
Caused by hemorrhaging when a facial fracture occurs
It is the bruising of the lax soft tissues around the eyes caused by skull base fractures Read more: 

7. Color of Bruises Color changes that occur:
When it first appears, a bruise will be reddish looking, which reflects the color of the blood in the skin.
light bluish red color begins after a few hours
dark purple color occurs within the week
yellowish/greenish color occurs at the end of week
brown discoloration patterns become apparent from then on
The coloring of bruise can be used to determine its age

8. Tissue Bridges
Tissue bridges are threads of tissue that consists of nerves, elastic tissue fibers, connective tissue fibers, and blood vessels, that run in between opposing sides of the tear
Tissue bridges are often associated with lacerations
Tissue bridging is often a result of the partial tissue separation associated with lacerations
This was the least graphic photograph online of tissue bridging….

9. Works Cited