1. Thoracic Osteology, Arthrology, Myology Flashcards
Which intercostal muscles head inferiorly and anteriorly from their origin?
External intercostal muscles
What kind of joint is the manubriosternal joint?
Symphysis
What rib contacts the xiphisternal joint?
Rib 7
Contacts the xiphoid process and the body of the sternum
What are the two membranes associated with the intercostal muscles, and where are they located?
Anteriorly: Exterior (Anterior) Intercostal Membrane
Posteriorly: Interior (Posterior) Intercostal Membrane
Which intercostal muscles depress the ribs for exhalation?
Internal intercostal muscles
Which rib has a fibrous joint where it joins the common cartilage of the rib cage going up to the 7th rib’s insertion on the sternum?
The 10th rib
What rib has its contact in the sternal angle?
The second rib.
(Contacts the manubrium and the body of the sternum)
What is the other name for the floating ribs?
Which ribs are they?
Vertebral ribs
Ribs 11 - 12
What are the two permanent syndchondrosis joints we learned in this lecture?
Xiphisternal joint
1st Sternocostal Joint
What is the other name for the false ribs?
Which ribs are they?
Vertebrochondral
8 - 10
Which are the typical ribs?
Ribs 3 - 9
What is the other name for the true ribs?
Which ribs are they?
Vertebrocostal ribs
Ribs 1 - 7
What structures make up the superior thoracic aperture?
1st ribs
1st thoracic vertebra
Costal cartilage of the 1st rib
Superior border of the manubrium
Which ribs are atypical?
1-2 and 10-12
What is different about the 1st rib?
It has a groove for the subclavian vein and a groove for the subclavian artery.
It has scalene tubercle.
It only has one facet on the head.
