Concept 3: The Muscular System

Skeletal muscles are responsible for which of the following?

• Movement of the body
• Movement of the heart
• Movement of the ligaments 
• Movement of the extremities

Muscles __________ in order to produce movement.

• contract

• push

• grow

• shrink

What are the 3 parts of the muscle?

• origin, belly, impact
• origin, carpus, talus
• origin, belly, insertion
• occipital, frontal,

Muscles only ___________.

• Push

• Pull

• Both

Another name for the prime mover is

• antagonist

• synergist

• agonist

• fixator

A muscle that helps the prime mover is called a...

• antagonist

• synergist

• agonist

• fixator

A muscle that stabilizes a motion is called a

• antagonist

• synergist

• agonist

• fixator

What two proteins are responsible for muscle contraction?

• Actin and myosin

• Troponin and tropomyosin

• Adenine and guanine

• Uracil and Adenosine triphosphate

Which is a protein that guard the actin strand?

• Troponin

• Uracil

• Adenosine triphosphate

• Acetylcholine

What is the name of the neurotransmitter responsible for starting muscle contraction?

• Troponin

• Uracil

• Adenosine triphosphate

• Acetylcholine