thoracic cage Flashcards
sternal angle at the level of
T4 t5 disc
ribs have what borders
smooth rounded superior border
thin sharp inferiro border
ribs articuate with what veretebra
with its own veretebra and teh one above it
wht are teh false ribs
8910
what are the true ribs
1-7
what are the floating ribs
11,12
what are tehtypical ribs
3-9
1st rib description
flat shortest andf broadest , scalene tubercle and grooves for subclabion artery and vein
2nd rib description
flat like 1st rib but longer
10th rib description
head has only one facet articulates with its own vertebra
11 and 12 rib description
one facet no neck no tubercle
rib fractures is most common in what ribs
5-10 middle
what is the weakest area on the rib
the angle
how many vertebra arethere
33
types of curvatures
primary nd secondary
primary curvature is during
fetal development concave anteriorly
secondary curvature description
cervical curvuture supporting its own head ( concave posteriorly)lumbar curvature learning to walk and assume an upright posture
atlas comunicates with the skull to form the
atlanto occipital joint
atlas commuicates with axis to form the
atalnto axial joint
charecteristics of atlas
no body , no spinous process , 2 lateral masses ,2 transverse formania antriro and posterior arches
axis has what process
odontoid process
iv discs parts
annulas fiborus fibrocartillage strengthens teh disc and protects teh central body
nucelu polposus gelantinous central core of the disc elastic more water shock absorber
disc herniation
protursion of gelatinous nucleus polposus through the annulus fiborus of IV disc
where is teh annulus fiboros thinner
posteolateral
95% of disc herniation is at
L4/L5 or L5/S1
cartiaginous joints
manurbiosternal ,xiphisternal , cc with ribs and 1st costal cartillage with manubrium
synovial jointscc
cc with sternum 2-7, head with vertebra costoveretebral, tubercel of ribs articulation costotransverse
boundaries of thoracic wall
superiorly suprapleural membrane, inferiorly diapghram, laterally ribs and intercostal spaces, anteriorly sternum and cc, posteriroly thoracic vertebra
thoracic outlet borders
anteriroly the superrior border of manubrium sterni
posteriorly first thoracic vertebra
laterally medial border of 1st rib and cc
contents of thoracic outlet
eso, trachea, vessels and nerves and apixes for the lungs and pleurae
what seperates teh pariteal pleurae from teh thoracic wall
endothoracic fasica
