Spine Bony thorax Flashcards
Bony thorax consists of
Sternum (anteriorly)
Thoracic vertebra (posteriorly)
12 pairs of ribs (lat)
3 divisions of the sternum
manubrium (upper portion)
body (middle also known as Corpus, gladiolus)
xiphoid process (most inferior portion)
The upper most border of the manubrium is called the _. This is at the level of
juglar notch (suprasternal, manubrial notch) T2-T3
The lower end of the manubrium is the _. This is at the level of
sternal angle
T4-T5
The xiphoid tip is located at the level of
T9-T10
THe inferior costal (rib) margin corresponds to the level of
L2-L3
_ joint is where each clavicle articulates with the manubrium
SC joint
What is the only bony connection between each shoulder girdle and the bony thorax
SC joint
The anterior ribs attach to the sternum by
costocartilage
the clavicles and the cartilages of the first 7 pairs of ribs connect directly to the
sternum
the costocartilage for the fist rib attaches to the
manubrium
the costocartilage for the second rib attaches at the
sternal angle
the 3rd-7th costocartilage attaches to the
body of the sternum
ribs 8,9, and 10 also have costocartilage but attach to the
costocartilage of rib #7
The first 7 pairs of ribs are called _ and why
true ribs
because the ribs attach to the sternum by its own costocartilage
ribs 8-12 are called _ why?
false ribs
because the attach to the sternum indirectly
ribs 11-12 are called _ and_ why?
false/floating ribs
because the do not possess costocartilage or connect anteriorly
each rib has two ends
the posterior/vertebral
anterior/sternal end
Between the 2 ends is the
shaft/body of the rib
the vertebral end has a _ and a
head
flat neck