Skeletal System

How amazing God designed our bodies to be!

http://www.factslides.com/s-Your-Body

Intro to the skeletal system

https://www.youtube.com/watch?v=rDGqkMHPDqE

What is the purpose of the Skeletal System?

1. Gives us our shape and posture
2. Protects our organs
3. Acts as a base for muscles to attach
4. Allows us to move
5. Produces blood cells

Everything you need to know about bones

http://teenshealth.org/en/teens/bones-muscles-joints.html#

Periosteum

A. The outside part of bone

B. This layer is thin, but very dense

C. You can find the nerves and blood vessels

which nourish the bone in this layer

Compact

A. The outer part of the bone

B. This layer is smooth and very hard

C. You can find the blood vessels running through

this layer

Cancellous (say can-sel-us)

A. The soft inner bone

B. This layer looks like a sponge, but is much

stronger

C. You can find blood vessels being made here

Bone Marrow

A. The very inside of the bone

B. This layer looks like jelly

C. You can find new blood cells being made here

Breaking Bones

https://www.youtube.com/watch?v=55ZOOEQQuK4

If you get grossed out easily, don’t watch.

Bowing Fracture

Incomplete fracture of

the long bones, radius,

ulna, fibula, tibia

Hairline Fracture

aka stress fracture

Tiny crack within a

bone

Greenstick Fracture

Bone bends and

cracks but does not

break

Single Fracture

Bone is broken in one

place into two pieces

Simple Fracture

Typical bone break,

but does not go

through the skin

Comminuted Fracture

Bone shatters into

more than two pieces

Open Fracture

Bone breaks and

goes through the

skin