Muscles of Breathing

Question 1

List the muscles of inspiration

Answer 1

• Diaphragm
• Internal intercostals (interchondral)
• External intercostals
• Sternocleidomastoid (accessory muscle)

Question 2

List the muscles of expiration

Answer 2

• Internal intercostals interosseous part
• Rectus abdominis
• External abdominis oblique
• Transverse abdominis
• Internal abdominis oblique
• Scalenes (accessory muscle)