anatomy Flashcards
identify
A right atrium
B left atrium
C aortic knuckle
what does bundle of HIS split into
L and R bundle branches either side of interventricular septum
what 3 things make up cardiac plexus
vagus
sympathetic
general visceral afferents
where does cardiac plexus go into heart
SAN
which symp nerves in cardiac plexus
T1-T5
what do GVA nerves travel with
sympathetic nerves
where is cardiac pain perceived
T1-T5 dermatomes more or less
Why is LCA stenosis less serious in R dominant heart
because interventricular septum gets blood from both R AND L coronary arteries
where does Inter ventric septum get blood in L dominat heart
PDA only which is branch of L circumflex
2 signs of bundle branch block
prolonged QRS complex
loss of ventricular synchrony
how to identify LAD on angiogram
goes towards apex
3 most common regions of CA stenosis
top of LAD
top of L circ
Top of R CA
what is angioplasty
balloon catheter + stent
which artery used commonly for coronary bypass
internal thoracic
which CA is occluded
LAD
which are systolic murmers
mitral regurgitation and aortic stenosis
which are diastolic murmurs
mitral stenosis and aortic regurgitation
how can you see LA enlargement on chest xray
doubledensity
what do GVA transmit
chemical and bp, pain
Branches of LCA
LAD (anterior interventricular) and circumflex
Branches of RCA
marginal and posterior interventricular
circumflex supplies
l atrium
side and back of l ventricle
LAD supplies
front and bottom of l ventricle
front of septum
RCA supplies
r atrium
r ventricle
bottom of both ventricles
back of septum
40/50% MI in
LAD
septal branches of LAD supply
AVN
SAN suplied by
RCA
AVN aupplied by
both LAD and RCA
inferior wall infarction
RCA
posterior infarction coronary artery
RCA
anterior wall infarction
LAD
lateral wall infarction -which artery
circumflex
green inferior RCA
blue anterior LAD
red lateral circumflex
purple septal RCA and or LAD
rv enlargement
apex of heart is too high
boot shaped heart
Tetralogy of Fallot
ra enlargement
r border more convex and elongated
birth defect
hypertension
lv enlargement
hypertension
athletes
la enlargement
double density
mitral stenosis
ra enlargemenet
elevated l bronchus
whre does transthoracic plane lie
T4/T5
how many areas of mediastinum
4 PMAS
A neurovascular byndle
B lung root
C phrenic nerve
D vagus
E sympathetic chain
where does phrenic nerve pass in the neck
anterior to anterior scalene muscle
where does vagus pass in lung
posterior to lung root
where does phrenic pass in lung
anterior to lung root
veins for central line
subclavian, femoral or IJV
A mitral
B aortic
C pulmonary
D tricuspid
A tricuspid
B pulmonary
C mitral
when does ductus arteriosus clsoe
1-3 days after birth
where are the base of the lungs on the outside?
mid-clav 6th rib
Mid-axill 8th rib
post 10th rib
posterior intercostal arteries arise from
Descending aorta
anterior intercostal arteries arise from
internal thoracic artery
pus-o-thorax name
empyema
what nerve supplies sensation to the mediastinal pleura and pericardium
phrenic
visceral pleura innervation
vagus
what make these indentations
A arch of aorta
B L subclavian
C SVC
D azygos vein
E oesophagus
