2. Objectives
How do the skeletal and muscular systems
work together to create movement?
How are the functions of the parts of the
skeletal and muscular systems supported
by their structure?
3. Joints
A joint is simply
where 2 or more
bones meet in your
body
One example of a
joint is your elbow
your
humerus, radius
and ulna make up
your elbow joint
4. Joints
Pick3 joints in your
body
Determine which
bones come
together to form
each joint
5. Joints
Several tissues work together to build the
joints in your body
Bone: provide an attachment point for
muscles
Muscle: contract to pull bone
Tendons: attach muscle to bone
Ligaments: attach bones
Fluid sac: cushions the joint
6. Build a Joint
selecthere to see how a joint is organized
in your body
7. Interactions
The tissues of your muscular system and
your skeletal system interact to cause
movements in your body.
Let’s
take a look at the steps that need to
occur for this to happen.
8. Making Movement
Pulling your lower arm
up
biceps
1. Bicep muscles
contract
2. Contracting biceps
pulls on a tendon
attached to your
lower arm bones
3. The tendon pulls
your lower arm
bones up
9. Making Movement
Pulling your lower arm
down
1. Tricep muscles
contract
2. Contracting triceps triceps
pull on a tendon
attached to your
lower arm bones
3. The tendon pulls your
lower arm bones
down
