Weitere ähnliche Inhalte Ähnlich wie Types of Joints (20) Kürzlich hochgeladen (20) 1. Hola! My name is Flaco,
and I want to give you a
tour of the types of
joints in the human
body.
by Amber Fuhrer
2. Let me tell you a little about myself.
I live in a cemetery…
3. … and this year it is my job
to get everyone ready for the
Dia de los Muertos dance!
5. Since everyone here is a skeleton,
I have studied a lot about joints,
so I can tell them how to move
to the music!
7. What if we didn’t have joints?
If we tried to MOVE,
we would fall on our faces
like a stack of dominoes!
8. So, first of all, we have fixed, semi-
moveable, and moveable joints.
What good are fixed joints?
9. Fixed Joints
The skull has fixed joints.
As you grow, the bones come
together and become stronger to
protect your brain.
12. Semi-moveable
Your spine has semi-moveable joints
Joints give your body support and shape,
that
but they still let you move a little.
16. moveable Joints
are also known as synovial joints.
The space between the bones is
filled with synovial fluid, which
protects and lubricates the joints.
17. For dancing, moveable joints
are the most important
because they let us move our
arms, legs, and hips.
21. The knee joint works like the
hinge on a door. It brings the
upper and lower leg bones closer
together so we can bend!
23. This is what happens
when your hinge joints
don’t work anymore.
You have to get a
replacement.
27. Ball and sockets joints are
the most moveable. You
can move your leg bone
around like this pestle or
stick in the bowl.
31. The pivot joint in your neck lets you
move your head from left to right
and back the same way a car tire
can be steered left to right.
32. …Or like the way an
oscillating fan moves
back and forth!
33. Did you know you have
two bones in the first part
of your arm?
You use small pivot joints
in your forearms to twist
the lid off a jar.
37. … and to show
the number four
with my hand!
41. Gliding joints allow the small bones in
your wrists and ankles to easily glide
past each other for flexible movement.
42. Click the hand x-ray
for a review of the
types of moveable joints.
Que bueno!
45. Credits
Stock Exchange (users nickwijan, LesKZN, thesaint,
strakplan, and 1234326)
istockphoto.com
(iStock_000010980262Medium_dancing_skeleton_from_
hell; iStock_000017810937Small_dead_ballerina)
http://www.doolins.com/jointeddayofthedeadskeletons.a
spx
Microsoft Image Gallery
Amber Fuhrer’s iphone (4 hand)
http://www.jeffsims.net/flash/skeleton.html
