Muscular and Skeletal System

What is an example of an involuntary muscle?

• Heart

• Arms

• Legs

• Shoulders

The cardiac muscle is considered a

• Voluntary muscles because we control when it contracts and relaxes

• Involuntary because it contracts and relaxes automatically without us controlling it.

What is a voluntary muscle?

• Muscles you have control over

• You have no control over the muscle

• Muscle works automatically

What type of muscles are the biceps and triceps that are located in your upper arm?

• skeletal

• cardiac

• smooth

What are the 3 types of muscles?

• Cardiac, smooth and skeletal

• Cardiac, skeletal, prime

• Flexion, extension, smooth

Tags

NGSS.MS-LS1-3

This type of muscle is found in the heart

• Cardiac Muscle

• Skeletal Muscle

• Smooth Muscle

Tags

NGSS.MS-LS1-3

Which statement is true about how the arm moves when we bend our elbow?

• All the muscles in our arms contract when we bend our elbow and this allows movement.

• All the muscles in the arms relax when we bend our elbow and this allows movement.

• Muscles work in pairs and in opposite direction. One muscle relaxes while the other contracts and this allows movement of the body.

Look at the picture, which statement is true about bending the elbow?

• The triceps relax and the biceps contract in order to bend the elbow.

• The triceps contracts to and the bicep relaxes in order to bend the elbow.

• The muscles do not contract or relax when bending the elbow.

Look at the picture, which statement is true about muscle working together.

• Muscles work in opposite directions, while one contracts the other relaxes.

• The triceps always contract and biceps always relax when the arm moves.

• The muscles do not contract or relax

Tendons are important in moving the body because they

• Connect the muscle to the bone to allow movement

• Connect the muscles to other muscles

• Connect bones to bones throughout the body.