Trachea Quiz: Anatomy and Function
External Intercostal Muscles
The external intercostal muscles are the most superficial muscles of the rib cage and aid in respiration by elevating the ribs during inhalation.
Attachments of External Intercostal: Origin & Insertion
Origin: (proximal attachments)
Inferior border of ribs above.
Insertion: (distal attachments)
Superior border of ribs below.
Actions of External Intercostal:
Elevation of the ribcage during inhalation.
Learn more about the respiratory system with these quizzes and labeled diagrams.
Innervation of External Intercostal: