Muscular System Quiz

What are the three types of muscles in the human body?

• bicep, tricep, quadricep

• upper, middle, lower

• skeletal, smooth, and cardiac muscles

• flexor, extensor, abductor

What is the main function of the muscular system?

• Produce hormones

• Regulate body temperature

• Enable movement and maintain posture

• Store and release energy

Explain the process of muscle contraction.

• Muscle fibers expand and lengthen to produce movement.

• Muscle contraction is caused by the bones moving instead of the muscles.

• Muscle contraction is a result of the muscles becoming completely relaxed.

• Muscle fibers generate tension and shorten to produce movement.

Which type of muscle is responsible for involuntary movements?

• Smooth muscles

• Skeletal muscles

• Cardiac muscles

• Nervous muscles

How do skeletal muscles work with the skeletal system to produce movement?

• By attaching to bones and contracting to produce movement

• By releasing enzymes to break down bone tissue

• By producing heat to warm up the bones

• By secreting hormones to stimulate bone movement

What is the role of smooth muscles in the body?

• Supporting the skeleton

• Involuntary movements

• Voluntary movements

• Regulating body temperature

Describe the function of cardiac muscles.

• Pumping blood and maintaining circulation

• Supporting the structure of the body

• Regulating body temperature

• Digesting food and absorbing nutrients

What are the two proteins involved in muscle contraction?

• actin and myosin

• hemoglobin and collagen

• keratin and elastin

• insulin and glucagon

How does the muscular system help in maintaining posture?

• By regulating body temperature

• By providing support and stability to the skeletal structure.

• By controlling the nervous system

• By aiding in digestion

Explain the difference between voluntary and involuntary muscle movements.

• Voluntary muscle movements are slower than involuntary muscle movements.

• Voluntary muscle movements are only used for breathing, while involuntary muscle movements are used for all other activities.

• Voluntary muscle movements are under conscious control, while involuntary muscle movements are not under conscious control.

• Voluntary muscle movements are only found in the arms, while involuntary muscle movements are only found in the legs.