Anatomy and Physiology of Physical Activity - Muscular System Quiz

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

• Flexor muscles, extensor muscles, and abductor muscles

• Bicep muscles, tricep muscles, and quadricep muscles

• Skeletal muscles, smooth muscles, and cardiac muscles

• Upper body muscles, lower body muscles, and core muscles

Explain the process of muscle contraction.

• Muscle contraction is initiated by the release of calcium ions, which bind to the protein complex troponin, causing a change in the position of tropomyosin.

• Muscle contraction is initiated by the release of magnesium ions, which bind to the protein complex troponin, causing a change in the position of tropomyosin.

• Muscle contraction is initiated by the release of potassium ions, which bind to the protein complex troponin, causing a change in the position of tropomyosin.

• Muscle contraction is initiated by the release of sodium ions, which bind to the protein complex troponin, causing a change in the position of tropomyosin.

What is the function of the muscular system?

• Regulating body temperature

• Producing hormones

• Movement, stability, posture, and generating heat

• Digestion and absorption of nutrients

Describe the structure of a skeletal muscle.

• Skin, hair, and nails

• Fat cells, blood cells, and lymph nodes

• Muscle fibers, connective tissue, blood vessels, and nerves

• Bones, tendons, and ligaments

What is the role of tendons in the muscular system?

• Tendons connect muscles to nerves and help in transmitting electrical signals

• Tendons are responsible for storing excess glucose in the muscles

• Tendons are used for maintaining body temperature in the muscular system

• Tendons connect muscles to bones and help in transmitting the force generated by the muscles to the bones.

What are the major muscles involved in the movement of the arm?

• Gluteus maximus, adductor muscles, and hip flexors

• Quadriceps, hamstrings, and calf muscles

• Pectoralis major, latissimus dorsi, and obliques

• Deltoid, biceps brachii, triceps brachii, and rotator cuff muscles

Explain the difference between voluntary and involuntary muscles.

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

• Voluntary muscles are always tired, while involuntary muscles are never tired.

• Voluntary muscles are used for breathing, while involuntary muscles are used for walking.

• Voluntary muscles are under conscious control, while involuntary muscles are not under conscious control.

What is the importance of the muscular system in maintaining posture?

• Providing oxygen to the body

• Aiding in digestion and metabolism

• Support and stability to the skeletal structure

• Regulating body temperature

How do muscles work together to produce movement?

• By randomly twitching

• By remaining completely still

• By contracting and relaxing in a coordinated manner

• By expanding and contracting rapidly

What are the effects of exercise on the muscular system?

• Decreased muscle strength and flexibility

• Increased fat accumulation in muscles

• Increased muscle strength, endurance, and flexibility

• No effect on the muscular system