Which one of the following is matching pair? |
|
a) |
Lubb Sharp closure of AV valves at the beginning of ventricular systole |
b) |
Dup Sudden opening of semilunar valves at the beginning of ventricular diastole |
c) |
Pulsation of the Valves in the blood vessels radial artery |
d) |
Initiation of the heart beat Purkinje fibres |
Which one of the following is matching pair? |
|
a) |
Lubb Sharp closure of AV valves at the beginning of ventricular systole |
b) |
Dup Sudden opening of semilunar valves at the beginning of ventricular diastole |
c) |
Pulsation of the Valves in the blood vessels radial artery |
d) |
Initiation of the heart beat Purkinje fibres |
(a)
First sound of heart is lubb (a long and booming sound), created by the closure of atrio-ventricular valve (AV), tricuspid and bicuspid at the beginning of ventricular systole. At the beginning of ventricular diastole, the semilunar valves close, producing the second sound ‘dup’.