What do tricep muscles do?
Bend the arms down (straight)
When a muscle contract is gets...
Identify the muscles in the arms
Biceps (on top)
Triceps (on bottom)
When a muscle relaxes it gets...
The pairs of muscles in a hinge joint work in opposite directions. What is the scientific term for this type of muscle pair?
What do bicep muscles do?
Bend the arms up
Can muscles push?
No they can only pull.
What type of muscle is your heart made from?
Muscles are attached to bones by...