Sinoatrial node, or SA node.
Pacemaker batteries must be checked regularly. Some pacing systems allow patients to monitor battery life through a special telephone monitoring service that can read pacemaker signals.
pacemaker is a pacemaker
it is a life cycle to them or their life.
Some people die when their heart beats become irregular. By installing a pacemaker, it gave them 10 to 20 more years of life.
A moth has a 4-stage life cycle.
the life cycle for horses are for all breeds. it is a dumb life cycle
what is a plums life cycle
cougars life cycle === ===
what is the wetas life cycle
what is a plums life cycle
The role of the fruit in a plant's life cycle is reproduction , in some plants it signals the end of the cycle.