1. By: M. Peterson
Biology 120 WW10
Spring 2014

2. 

Definition
A fracture is a complete or incomplete break
in a bone resulting from the application of
excessive force.
Description
A fracture usually results from traumatic
injury to bones causing the continuity of
bone tissues or bony cartilage to be
disrupted or broken. Fracture classifications
include simple, compound, incomplete and
complete.

3. Comminuted Fracture
Greenstick Fracture
Impacted Fracture

4. 
Comminuted fracture is a very serious case of
fractured bones. In this condition, the affected
bone is broken into three or more pieces. For
this reason, it is often termed as a multifragmentary fracture. The fracture can be either
open or closed. In closed types, the skin is not
broken, but in the open state the skin breaks
and the bone protrudes out. Comminuted
fracture treatment for open fractures are more
difficult as it is prone to infections.

6. 
A greenstick fracture occurs when a bone
bends and cracks, instead of breaking
completely into separate pieces. This type of
broken bone most commonly occurs in children
because their bones are softer and more flexible
than are the bones of adults.

8. 
Bones are very hard and can tolerate most powerful
impacts, certain traumatic injuries may cause cracking or
breaking of the bones. Bending or twisting of bones at an
awkward angle or a collision with a harder substance may
lead to cracking or breaking of the bones. Injuries resulting
out of fall or collisions are mostly responsible for bone
fractures. Depending upon the degree of fracture and extent
of damage to other body parts, fractures are classified into
different types of bone fractures. Sometimes, a single serious
injury may cause the bone to break into several fragments.
This is called comminuted impacted fracture. When these
broken fragments are driven into other broken bone
fragments, then it leads to impacted bone fracture.