Which of the following statements about muscle movement is true?
A) The only way muscles can cause movement is by contracting.
B) A single muscle can bend a joint by contracting and straighten it by relaxing.
C) Smooth muscles cause movement by contracting,while striated muscles cause movement by contracting and relaxing.
D) Striated muscles cause movement by contracting,but smooth muscles causes movement by contracting and relaxing.

Question

Quizplus · Accepted Answer

Muscles cause movement primarily by contracting. When a muscle contracts, it pulls on bones or tissues, creating movement. Relaxation of muscles does not directly cause movement; instead, it allows other muscles to contract and create movement. Both smooth and striated muscles cause movement by contracting.

Which of the Following Statements About Muscle Movement Is True