Transcript Document

Which part…
(a)Protects the brain?
(b)Moves when you put
your hand up?
(c)Moves so that you can
sit down?
(d)Protects the lungs?
(e)Supports the body and
contains part of the
nervous system?
(f) Is a joint?
Bones at the knee joint are lined with
….. at the surfaces which move against
each other. This ….. is very tough and
….., which reduces friction.
Additionally, the synovial fluid acts like
oil on a bike wheel, and also reduces ….
This stops the bone from ….. away. The
joint is held together by elastic ….. so
that it is strong but flexible.
Crossing the joint are ……. They …..
muscle to bone. When a muscle
contracts it is able to pull on a bone.
Without a tendon, no ….. force would
reach a bone!
ligaments
smooth
pull
wearing
cartilage
tendons
friction
attach