VII. Respiratory Muscles

• Label RED: diaphragm muscle

  
• Label ORANGE: sternocleidomastoid muscle

  
• Label YELLOW: scalenes muscle

  
• Label RED: internal oblique muscle

  
• Label RED: internal intercostals muscle

  
• Label ORANGE: external intercostals muscle

  
• Label YELLOW: pectoralis minor muscle

  
• Label GREEN: pectoralis major muscle

  
• Label TURQUOISE: rectus abdominis muscle

  
• Label PURPLE: external oblique muscle

  
• Diaphragm muscle is inspiration
• Internal intercostal muscle is expiration
• Pectoralis minor muscle is inspiratory
• External intercostal muscle is inspiratory
• Scalenes muscle is inspiratory
• Sternocleidomastoid muscle is inspiratory
• Rectus abdominis muscle is expiratory
• Internal oblique muscle is expiratory
• External oblique muscle is expiratory
• Label LIGHT RED: diaphragm muscle