3. DSA: joyful ribs Flashcards
Which ribs are the only ribs to articulate with their own vertebrae and NOT the one above them?
1 10 11 12
Which ribs do not have tubercles?
11 and 12 *** do not articulate with transverse processes
Which ribs are the atypical ribs?
1 2 11 12
Which ribs are typical ribs?
3-9
What is the origin of the pectorals major muscle?
Anterior superior surface at ribs 3, 4, 5
What is the insertion of the anterior scalene muscle?
Superior surface of the 1st rib
What is the insertion of the middle scalene
Superior surface of the 1st rib
What is the insertion of the posterior scalene?
2nd rib
What is the insertion of the serratus anterior muscle?
The superior lateral surface of ribs 2-8
What is the KEY origin of the latissimus dorsi muscle?
the lower 4 ribs
What is the KEY insertion of the quadrates lumborum
inferior aspect of rib 12
What are the muscles that elevate the first rib?
Anterior scalene Middle scalene
What is the action of the posterior scalene?
Elevates 2nd rib
The ______ _______ muscle starts from the spine around the costal cartilage
external intercostal
The _____ _____ muscle starts from the rib angle to the sternum
Internal intercostal muscle
The ______ _______ muscle starts from the rib angle to the costal cartilage
innermost intercostals