Skeletal Muscles Quiz

Approximately how many skeletal muscles are there in the human body?

• 600

• 100

• 2000

• 50

What percentage of body weight do skeletal muscles comprise?

• 40-50%

• 10-20%

• 60-70%

• 5-10%

Which of the following is NOT a function of muscles?

• Producing hormones

• Providing protection

• Maintaining posture

• Generating body heat

What does muscle contraction produce that causes joint movement?

• Force

• Blood

• Oxygen

• Enzymes

Which of the following is NOT a factor to consider when tension in a muscle is developed?

• Color of the muscle

• Magnitude of force generation

• Speed of force development

• How long the force is maintained

Which of the following is affected by anatomical and physiological characteristics of the muscle?

• All of the above

• Magnitude of force generation

• Speed of force development

• How much of the muscle is being activated

Muscles are responsible for which of the following?

• Movement of the body and all of its joints

• Digesting food

• Producing red blood cells

• Filtering waste from blood

Which of the following best describes the property of extensibility in the musculoskeletal unit?

• Ability to be stretched or to increase in length

• Ability to return to normal resting length following a stretch

• Ability to respond to a stimulus

• Ability to contract and develop tension

What is the definition of elasticity in the context of the musculoskeletal unit?

• Ability to be stretched or to increase in length

• Ability to return to normal resting length following a stretch

• Ability to respond to a stimulus

• Ability to contract and develop tension

Irritability in the musculoskeletal unit refers to:

• Ability to be stretched or to increase in length

• Ability to return to normal resting length following a stretch

• Ability to respond to a stimulus

• Ability to resist external forces