Cards Flashcards
Allantois
becomes urachus (connection btw bladder and umbilicus)
Umbilical arteries become
medial umbilical ligaments
umbilical vein becomes
ligamentum teres hepatis (contained in falciform ligament)
Crescendo-decrescendo systolic ejection murmur
aortic stenosis
holosystolic, high pitched “blowing murmur”
MR and TR
Late systolic crescendo murmur w/ mid systolic click
mitral valve prolapse click is 2/2 sudden tensing of chord tendinae most frequent valvular lesion best heard at apex ^risk for endocarditis
harsh holosystolic murmur at tricuspid area
VSD
high pitched blowing early diastolic decrescendo murmur
aortic regurgitation; often 2/2 aortic root dilation, bicuspid aorta, endocarditis, rheum fever
diastolic murmur following opening snap
mitral stenosis; often 2/2 rheum fever. Chronic MS can result in LA dilation
continuous murmur
PDA
best heard left infraclavicular
“machine like”
What effect does adenosine have on SA and AV node
slows rate of diastolic depolarization and decreases HR
can cause heart block on AV node (hence why you can give it for peeps who are having cray cray heart arrhythmias)
Borders of the femoral triangle
inguinal ligament (sup), adductor longus (med), sarorius (lat)
What does nepriliysin do?
metalloprotease that cleaves and inactivates natriuretic peptides (BNP), as well as glucagon, oxytocin, bradykinin. If you block it, you have increased BNP/ANP, which promotes diuresis and stuff in Heart failure
Lecithinase?
exotoxin released by c perfringens, degrades phospholipid membrane (including lecithin)
Diphtheria toxin
AB exotoxin that ribosylates and inactivates EF2, preventing protein synthesis
can lead to cardiac probs