How Muscles Move Bones

Your muscles help your skeleton to ___________

• move your body

• protect your organs

• support your body

When you straighten your arm, your triceps muscle __________ and your biceps muscle______________

• relaxes, contract

• contract, relaxes

• contract, contract

• relaxes, relaxes

Tags

NGSS.MS-LS1-3

Naresh, Bella and Max are talking about how their muscles work. Who is correct?

• Naresh

• Bella

• Max

What is a muscle

• A hard outer covering of the body

• A skeleton without hard parts 

• Tissues that contract or relax to create movement 

• Large structures that are filled with fluids that help shape an animal

The main job or purpose of the muscular system is to:

• Keep the heart beating

• Move the body

• Protect internal organs

• Transfer oxygen

You have ________________ all over your body, which connect(s) muscles to bones.

• Joints

• Cartilage

• Tendons

• Calcium

The muscle of your upper arm is called the

• Pectorals

• Abdominals

• Deltoids

• Biceps

This type of muscle tissue is attached to bones wand helps control voluntary movement

• Skeletal

• Cardiac

• Smooth

When a muscle contracts, it _______

• gets longer

• gets shorter

• gets thinner

• grows hair

Skeletal muscles are attached to the _________.

• Stomach

• Lungs

• Bones

• Involuntary Muscles