Muscle Growth Quiz

What are the basic units of contraction in skeletal muscles?

• Myofibrils and sarcomeres

• Cardiac muscle

• Motor neurons

• Satellite cells

What triggers motor neurons to tell muscles to contract?

• Sarcoplasmic reticulum

• Satellite cells

• Muscle protein synthesis

• Metabolic stress

What is the process by which muscle fibers repair and grow after a workout?

• Muscle hypertrophy

• Muscle tension

• Muscle damage

• Metabolic stress

What role do satellite cells play in muscle growth?

• They add more nuclei to muscle cells

• They activate motor neurons

• They increase muscle tension

• They cause muscle damage

Which mechanism of muscle growth involves lifting progressively heavier weights?

• Muscle tension

• Muscle damage

• Metabolic stress

• Satellite cell activation

What causes the 'pump' sensation in the muscles during a workout?

• Increased blood flow

• Muscle protein synthesis

• Inflammatory molecules

• Cell swelling

Which hormone is responsible for promoting muscle growth and repair?

• Insulin Growth Factor (IGF)-1

• Testosterone

• Mecho-Growth Factor (MGF)

• Growth hormone

What is the impact of rest and nutrition on muscle hypertrophy?

• They promote muscle growth

• They inhibit muscle breakdown

• They cause muscle damage

• They increase metabolic stress

Why is rapid muscle growth unlikely for most people?

• Muscle hypertrophy takes time

• Muscle cells cannot grow

• Hormones prevent muscle growth

• Genetics limit muscle growth

What is the main factor involved in muscle growth?

• Stress on the muscles

• Protein breakdown

• Carbohydrate intake

• Caloric deficit