OCR Technical Sport: Unit 1 LO2 The Muscular System 1

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

• Cardiac Muscle

• Striated Muscle

• Smooth Muscle

• Skeletal Muscle

What is the role of fixator muscles?

• To relax and allow movement

• To support the antagonist

• To contract and cause movement

• To stabilize the joint and prevent unwanted movement

Which muscle type is known for never fatiguing?

• Skeletal Muscle

• Smooth Muscle

• Fast Twitch Muscle

• Cardiac Muscle

What is the primary characteristic of Type I muscle fibers?

• High force production

• Fast contraction speed

• High aerobic capacity

• Low myoglobin levels

What is the antagonist muscle during a bicep curl?

• Latissimus Dorsi

• Triceps Brachii

• Deltoid

• Biceps Brachii

Which type of contraction occurs when a muscle lengthens under tension?

• Concentric

• Isometric

• Static

• Eccentric

What is the term for the increase in muscle size due to training?

• Muscle Atrophy

• Muscle Fatigue

• Muscle Cramp

• Muscle Hypertrophy

Which muscle is the agonist during plantar flexion?

• Biceps Femoris

• Gastrocnemius

• Tibialis Anterior

• Rectus Femoris

What is the main function of synergist muscles?

• To oppose the agonist

• To support the agonist

• To stabilize the joint

• To lengthen under tension

Which muscle fiber type is most beneficial for endurance athletes?

• Type IIb

• Type IIx

• Type IIa

• Type I