Musculoskeletal anatomy: Thoracic cage. Flashcards
1
Q
What are the muscle of the thoracic cage?
A
External intercostal, internal intercostal, innermost intercostal and tranversus thoracis
2
Q
What is the origin and insertion of external intercostal?
A
O: Inferior surface of a superior rib I: Superior surface of the following lower rib.
3
Q
What is the origin and insertion of the internal intercostal and the innermost intercostal?
A
O: Superior surface of the an inferior rib | I: Inferior surface of the above ribs.
4
Q
Which muscle(s) are involved in forceful inhalation?
A
External intercostal
5
Q
Which muscle(s) are involved in forceful expiration?
A
Internal intercostal, innermost intercostal, transversus thoracis
6
Q
What is the origin and insertion of transversus thoracis?
A
O: Sternum and xiphoid process | I: ribs 2 to 6
