Movement of Muscles

Which of the following is true of muscles?

• They can push or pull bones.

• They can only push bones.

• They can only pull bones.

What do the string represent on this model?

• the movable joint

• the origin

• the insertion

• the muscles

What does the metal fastener represent on this model?

• the movable joint

• the origin

• the insertion

• the muscles

What point of attachment is represented by number 1 on this model?

• the movable joint

• the origin

• the insertion

• the muscles

What point of attachment is represented by number 4 on this model?

• the movable joint

• the origin

• the insertion

• the muscles

What would you have to do to bend the lower leg backwards?

• push string A

• pull string A

• Push string B

• Pull string B

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What would represent "contraction of the muscle" needed to move the lower leg backwards?

• letting string A loosen

• pulling string A

• letting string B loosen

• pulling string B

Tags

NGSS.MS-ETS1-1

NGSS.MS-PS2-1

Which of the following is NOT a function of the muscular system?

• stabilizing joints

• generating heat

• transporting nutrients

• maintaining posture

Which best describes how the muscular system impacts movement of the human body?

• When a muscle relaxes, it pulls on the bone it is connected to and the bone moves.

• When a muscle relaxes, it pushes on the bone it is connected to and the bone moves.

• When a muscle contracts, it pushes on the bone it is connected to and the bone moves.

• When a muscle contracts, it pulls on the bone it is connected to and the bone moves.

What would point A represent?

• The origin of the muscle

• The insertion of the muscle

• The contraction of the muscle

• The relaxation of the muscle