S2: 2/03 Quiz

What controls your muscle movements?

• brain and hormonal system

• brain and arms

• brain and nervous system

• brain and ligaments

True or False, The motor cortex sends an electrical signal through the spinal cord and peripheral nerves to the muscles, causing them to contract.

• True

• False

(Fill in the blank) The _____ coordinates muscle movements.

• cranium

• cerebellum

• skull

True or False, Muscles can pull bones but they can't push them back into place.

• True

• False

(Fill in the blank) Muscles move by contracting and _____.

• flexing

• relaxing

• moving

• tight