11 HMS Core 2 KiQ1 Muscular System Review

How many muscles are there in the human muscular system?

• Over 500

• Over 600

• Over 700

• Over 800

Which type of muscle is found in the heart?

• Cardiac muscle

• Smooth muscle

• Skeletal muscle

• Voluntary muscle

What is the primary function of smooth muscle?

• Circulate blood

• Produce movement

• Aid digestion

• Support posture

What percentage of the body's mass is made up by skeletal muscles?

• 40%

• 30%

• 60%

• 50%

What is the smallest structural unit of a muscle?

• Muscle fiber

• Myofibril

• Sarcomere

• Fascia

Which property of muscle fibers allows them to respond to stimuli?

• Contractility

• Excitability

• Extensibility

• Elasticity

What is the appearance of skeletal muscle?

• Striated

• Smooth

• Rough

• Fibrous

Where is the origin of the biceps brachii located?

• Near the clavicle

• On the ulna in the forearm

• On the radius in the forearm

• Near the head of the humerus and the scapula

How many heads make up the quadriceps?

• Five

• Two

• Three

• Four

What is the function of slow twitch muscle fibers?

• Sustain repeated contractions

• Produce maximal force

• Contract quickly

• Support anaerobic activities