Normal Heart Sounds In adult Flashcards
(20 cards)
S1 is also know as
Lub
S1 is caused by
Closure of AV Valves ( mitral, tricuspid)
Where is S1 the loudest?
At the apex of the heart ( midclavicular, 5th intercostal space?
S1 marks the end of
Of the diastole and beginning of systole
Systole ejections higher
Pressure
Diastole filing lower
Pressure
Which is longer, systole, or diastole?
Diastole is one third longer than Systole, needs time for filling
S2 is also known as
DUB
S2 is caused by
Caused by closure of semilunar (aortic, pulmonic) valves
Where is S2 the loudest?
Loudest at the base of the heart (right sternal border, 2nd intercostal space)
When does S2 splits?
splits on inspiration;
Wide fixed splitting of S2 is caused by
;
right bundle branch block (RBBB)
• S2 is louder with a
pulmonary embolism
Where is Aortic valve located?
Right at the sternal border , 2nd ICS
Where is the pulmonic valve located ?
Left if the sternal border 2nd ICS
Where is the tricuspid valve located?
Left sternal border 4-5th ICS
Where is the mitral valve located ?
Left mid clavicular line 5th ICS
Where is the base of the heart ?
The base of the heart is at the aortic area,(right sternal border, 2nd intercostal space)
The base of the heart is also where S2 is ?
The loudest
