Muscles and Muscle Growth

How many muscles do we have in our body?

• Over 500

• Over 600

• Over 700

• Over 800

What percentage of our body weight do muscles make up?

• 1/4

• 1/3

• 1/2

• 2/3

What is the main function of muscles?

• To hold us up

• To help us breathe

• To protect our organs

• To digest food

What happens to muscles when they are exposed to stress?

• They shrink

• They become weaker

• They experience microscopic damage

• They become more flexible

Tags

NGSS.HS-LS4-4

What is the process called when muscles adapt to progressively greater demands?

• Hypertrophy

• Atrophy

• Repair

• Inflammation

What is the term for the process of muscles shrinking due to lack of resistance?

• Hypertrophy

• Atrophy

• Repair

• Inflammation

Which type of muscle contraction generates effective conditions for new growth?

• Concentric contraction

• Eccentric contraction

• Isometric contraction

• Isotonic contraction

What is the role of protein in muscle growth?

• Preserves muscle mass

• Provides energy for muscle contraction

• Increases muscle flexibility

• Reduces muscle soreness

When does the vital repair process for muscle growth mainly occur?

• During exercise

• During the day

• During meals

• During rest and sleep