Muscle System Worksheet

What is the primary function of skeletal muscles?

• Pump blood

• Aid digestion

• Produce movement

• Store calcium

Which of the following is a major muscle in the upper arm?

• Biceps brachii

• Gastrocnemius

• Gluteus maximus

• Trapezius

What type of muscle is found in the walls of internal organs?

• Skeletal

• Cardiac

• Smooth

• Voluntary

Which muscle is responsible for extending the knee?

• Hamstrings

• Quadriceps

• Gluteals

• Deltoid

Which muscle pair is antagonistic?

• Biceps and triceps

• Deltoid and trapezius

• Quadriceps and gluteals

• Hamstrings and gastrocnemius

What type of muscle contraction occurs when the muscle length changes?

• Isometric

• Isotonic

• Static

• Concentric

Which muscle fibre type is best suited for endurance activities?

• Type I

• Type IIa

• Type IIx

• Type III

Which muscle is used when performing a push-up?

• Pectoralis major

• Biceps femoris

• Soleus

• Rectus abdominis

What adaptation occurs in muscles after long-term resistance training?

• Decreased strength

• Muscle hypertrophy

• Muscle atrophy

• Reduced endurance

Which muscle is located in the lower leg?

• Deltoid

• Gastrocnemius

• Latissimus dorsi

• Biceps brachii