Thorax 1 Flashcards
insertions of pec major
sternum and clavicle
insertion of pec minor
carocid process of scapulla and ribs 3,4,5
what does the pec minor do
split axillary artery into three parts
what does the platysma
pulls corners of lips down and pulls mandible down to open mouth
what is the serratus anterior supplied by
long thoracic nerve
paralysis of serratus anterior leads to what
wing scapulla
what do the subclavius and clavi-pectoral fascia do
protect underlying brachial plexus from a broken clavicle
what is a hiatus hernia
weakening of diaphragm, stomach goes up
what is a congenital diaphragmatic hernia
diaphragm doesn’t form fully - liver goes up into thorax
origin of diaphragm
lumbar spine, inferior thoracic aperture , sternum
insertion of diaphragm
central tendon
what two arteries come from the second part of the axillary artery
thoraco-acromial artery
lateral thoracic artery
what does the thoraco acromial artery supply
anterior axillary wall
what does the lateral thoracic artery supply
medial and anterior wall of axilla
what does the medial and lateral pectoral nerves supply
pec major and minor
what is the medial and lateral pec nerves a branch off of
brachial plexus (C5-T1)
what is the medial mammary arteries a branch of
internal thoracic
what is the lateral mammary arteries a branch of
lateral thoracic artery
what is the internal thoracic a branch off
subclavian and runs straight down
APICAL lymph nodes in axillary
Anterior Posterior Infra-clavicular Central Apical Lateral
what does the parasternal lymph nodes drain
lymph from medial breast
what does the head of the rib articulate with
superior costal facet
what does the tubercle of the rib articulate with
transverse costal facet
parts of rib
head neck tubercle shaft costal groove
what is inbetween superior and middle scalene muscle
brachial plexus and axillary artery
what type of joint is a costochondral
primary cartilaginous
what type of joint is a sternochondral
atypical synovial
what type of joint in sternoclavicular
atypical synovial
what type of joint in manubriosternal
secondary cartilaginous
what two things is a costo-transverse joint
tubercle of rib and transverse process
how many posterior intercostal arteries
11
9 from thoracic aorta
2 arise form superior intercostal artery from subclavian
how many anterior intercostal arteries
9
6 from internal thoracic
3 from musculophrenic
where does the internal thoracic artery arise from
1st part of subclavian
how does the internal thoracic terminate
by dividing into musculophrenic and superior epigastric arteries
where do the intercostal nerves run
run with the costal groove of the rib
what happens in the 8th intercostal space
nerves cross deep to the costal margin and enters abdo wall
what does T10 supply
umbllicus
what does T12 supply
skin at supra pubic level
what does the collateral branch of the intercostal nerves supply
anterior muscles of intercostal
what nerve supplies serratus anterior
long thoracic
where is chest drain inserted
4/5th intercostal space
above rib
inbetween mid axillary line and anterior axillary line
direction of external intercostal muscles
hands in pockets
thicken at the back
direction of internal intercostal muscles
hands to face
thicken at front
direction of innermost muscles
same as internal
separated from internal intercostal by neurovascular bundle
whats behind the innermost muscle
subcostalis
