thoracic anatomy Flashcards
name the 3 parts of the sternum from top to bottom ?
- manubrium
-body
-xiphoid process
what joint is on the superior end of the manubrium ?
sternoclavicular joint
what is the area where different parts of the sternum meet called ?
sternal angle
what is on the side of the sternum ?
facets and demi facets
what type of facet do you find at the sternal angle ?
demi-facet
which costal cartilages (ribs) are connected to the body of the the sternum ?
3-7 ribs
and part of the 2nd rib at the demi facet
which two costal cartilages do you find the demi facet ?
2ND AND 7TH
Which ribs have direct anterior attachment to the sternum and what are they called ?
ribs 1-7 and they are called true ribs
state the numbers of the false ribs and state what a false rib means ?
8-12 are the ribs which are classed as the false ribs
false ribs are classed as ribs which do not directly articulate with sternum.
which ribs connect into the costal cartilage of the 7th rib in order to connect to the sternum ?
8-10th rib
which ribs are classed as floating ribs and why ?
11-12 only attached to the vertebrae to posteriorly. No attachment to the sternum
briefly describe Cervical ribs?
-accessory rib that arises from the 7th cervical vertebra
-Occur in about 5% of the population, more common in females
-thoracic outlet syndrome
main features of a typical vertebrae ?
bone
costal facets
Spinous processes
describe the function of the body ?
-heart shaped, 2 demi-facets on either side (superior and inferior) s0 4 altogother
-2 costal facets articulate with the heads of the ribs
describe the function of the costal facets?
on the transverse processes articulate with tubercles of ribs (T1-T10 only )
