Thorax Flashcards
difference between vertebrocostal and vertebrochondral ribs?
costal attach to sternum, chondral dont
Typical ribs and their properties (4)
3-9
wedge-shaped head with two facets
one facet with corresponding vertebra
other facet articulates with vertebrae superior to it
neck
tubercle at junction of neck and shaft with articular facet and non-articular part
The shaft - costal groove for intercostal nerve and vessels
atypical ribs are
1, 2, 10-12
first rib
single facet
wide horizontal shaft
scalene tubercle
grooves for subclavian vein and artery
second rib
two factes t1 and t2
10-12 ribs
only a single facet
ribs 11 to 12
no necks or tubercles
what is pectus excavatum
sunken or funnel chest; congenital, abnormal growth
pectus carinatum
breast brone and rib cartilage deformity that causes chest to bow outward. defect in tough connective tissue that hold rib to breastbone.
what are costovertebral joints
rib head art with superior demifacet of same no vertebrea and with inferior demifacet of vert above
(Rib and vertebra)
kind of joint sternoclavicular joint
synovial
reference lines 8
t2 jugular notch t4 angle of loiuis t9 xiphisternal joint t10 umbilical midcalvicular line: align with nipple lateral sternal line: either side midsternal line: down middle t5-t6, mitral valve, at midclavicular
three kinds of joints of thoracic wall?
costovertebral
joints of heads of ribs
constotransverse
what is a joint of head of rib
radiate ligament: head of rib to 2 vertebral bodies and intervetebral disk
costotransverse joints
synovial transverse process costo lig: anterior TP lateral: tubercle superior: tp of vertebra superior