Ribs Flashcards
(27 cards)
where does the head of the rib attach?
to the vertebral body of the same number on the superior costal facet, articulates with the vertebra above on the inferior costal facet
neck of the rib
area between head and tubercle
costal tubercle attachment
to the transverse process of the vertebra of the same number
costal angle
abrupt change in rib curvature
costochrondral joint
where the rib meets the costal cartilage
sternocostal joint
where the costal cartilage meets the sternum
which ribs only articulate with their own vertebra (not the one above)
1, 10, 11, 12
which ribs do not have tubercles and do not touch the transverse processes
11, 12
atypical ribs
1, 2, 11, 12 (sometimes 10)
typical ribs
3-9 (sometimes 10)
true ribs
1-7, cartilage attaches to the sternum
false ribs
8-12, ribs 8-10 cartilage attaches to the costal cartilage of the rib above
floating ribs
11-12, no anterior attachment
sternum parts
- manubrium
- sternal angle (angle of Louis, meets rib 2 costal cartilage)
- body (gladiolus)
- xiphoid process
anterior scalene insertion and action
insertion: superior surface of rib 1
action: elevates rib 1
middle scalene insertion and action
insertion: superior surface of 1st rib
action: elevates 1st rib
posterior scalene insertion and actions
insertion: 2nd rib
action: elevates 2nd rib
pectoralis minor origin
anterior superior surface of ribs 3,4,5
serratus anterior insertion
superior lateral surface of ribs 2-8
latissimus dorsi origin
lower 4 ribs
quadratus lumborum insertion and action
insertion: inferior aspect of rib 12
action: fixes the 12th rib in inhalation
external intercostal action
elevate ribs during forces inspriration
internal intercostal and innermost intercostal action
depression of ribs
what runs along the costal groove on the inferior side of the rib
Vein (most superior), artery (middle), nerve (inferior), found between the internal intercostal muscle and the innermost intercostal muscle
