BONES: FUNCTIONS AND TYPES

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JOINTS OF THE
HUMAN BODY
DEFINITION
- A place where two things or parts
are joined together.
- Areas where two bones meet.
Immovable Joint
• A tough fiber holds the bones together so
they can’t move.
Semi-movable Joints
• Each of the bones rests on a cushion of cartilage.
• The bones can move slightly, but ligaments stop
them from moving too far.
Freely Movable Joints
• All the moving parts are held together by
ligaments.
• Most joints are this type
• There are 6 types.
Type 1 – Hinge Joint
Hinge – (Uniaxial)
Hinge joints, like in your knee and elbow, enable
movement similar to the opening and closing of
a hinged door.
Type 2 – Pivot Joint
Pivot – (Uniaxial) The pivot joint in your neck
allows you to turn your head from side to side.
Type 3 – Saddle Joint
Saddle – (Biaxial)
The only saddle joints in
your body are in your
thumbs. The bones in a
saddle joint can rock
back and forth and from
side to side, but they
have limited rotation.
Type 4 – Condyloid
Condyloid – (Biaxial)
Oval joints, such as
the joint at the base
of your index finger,
allow bending and
extending, rocking
from side to side, but
rotation is limited.
Type 5 – Gliding Joint
Gliding – (Multiaxial)
Gliding joints occur between the surfaces of two
flat bones that are held together by ligaments.
Some of the bones in your wrists and ankles
glide against each other, but have limited range
of motion.
Type 6 – Ball and Socket Joint
Ball and Socket – (Multiaxial)
Ball and socket joints, like your hip and shoulder
joints, are the most mobile type of joint in the
human body. They allow you to swing or rotate
your arms and legs in many different directions.
TRY THESE!!!!!
• Classification of Joints Activity
• Joint Movement
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