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In higher vertebrates, SA-node helps in |
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|
a) |
Conduction of blood |
b) |
Initiation of heart beat |
|
c) |
Opening of tricuspid valve |
d) |
Opening of bicuspid valve |
|
In higher vertebrates, SA-node helps in |
|||
|
a) |
Conduction of blood |
b) |
Initiation of heart beat |
|
c) |
Opening of tricuspid valve |
d) |
Opening of bicuspid valve |
(b)
Sinu-auricular Node (SA-node) or pacemaker is found in right auricle of heart. This initiates heart beat.