Muscular System

What type of muscle tissue is found only in the heart?

• Fascicle

• Smooth muscle

• Cardiac muscle

• Skeletal muscle

Which muscle is responsible for flexing the forearm?

• Gastrocnemius

• Biceps Brachii

• Trapezius

• Rectus Femoris

What is the term for the connective tissue that covers, supports, and separates muscle?

• Tendon

• Fascia

• Myofibril

• Sarcomere

What is the primary chemical energy in cells?

• Actin

• ATP

• Myoglobin

• Lactic acid

Which area of a sarcomere encompasses the actin or thin filament only, with no thick filament overlap?

• A Band

• I Band

• H Zone

• Fascicle

What is the name of the muscle that extends the forearm?

• Triceps Brachii

• Pectoralis Major

• Biceps Brachii

• Latissimus Dorsi

Which type of muscle controls involuntary movement in organs like the stomach and intestines?

• Cardiac Muscle

• Skeletal Muscle

• Voluntary Muscle

• Smooth Muscle

What is produced in the muscles when glucose is broken down during strenuous muscular activity?

• Lactic acid

• Neurotransmitter

• Myoglobin

• ATP

What is the term for the wasting away of a body organ or tissue?

• Atrophy

• Peristalsis

• Extensibility

• Isometric contraction

The smooth, sustained contraction of a skeletal muscle is called

• Tetanus
• Cramp
• Flex
• Spasm