Dreams that involve hair loss or the loss of teeth, false teeth, etc, are normally a sign that you're worried about either aging, or - more frequently - the passage of time, that life is passing you by in some way.<br /> <br /> I don't think you can analyse dreams precisely.
SA node. the main pacemaker that initiates each heart beat located at the junction of the superior vena cava and the right atrium the SA node generates electrical impulses at 60 to 100 times per minute and is controlled by the sympathetic and parasympathetic nervous system.
1 D: The pacemaker is capable of pacing both the atria and ventricles. 2  D: The pacemaker is capable of sensing intrinsic cardiac activity in both the atria and ventricles.  D: The pacemaker is capable of triggered pacing (rarely used) and inhibiting itself in response to sensed events.