Cardiac conduction system function of the impulse dissipates
pacemaker (pace makers) to the heart muscle that occurs
rhythmic contractions and continuous. Cardiac conduction system
composed of:
1. Node sinoatrialis (NSA) is located on the foyer wall
right, as a pace maker (the origin of heart rate)
discovered by Keith and Flack.
2. Node atrioventrikularis (NAV) which is located near the bulkhead
atrioventrikuler.
3. Image artrioventrikularis (HIS), branching
form Purkinje fibers. Discovered by Wilhelm His
(Germany) and E. Purkinje (Sweden).
Heart muscle has the ability to contract independently
(autostimulasi) and is independent of nerve impulses. Muscle cells
which have been isolated heart may beat with the rhythm
alone. At the heart muscle, these cells are closely related and
there exchange of information with the gap junction in
interkalaris discs. Parasympathetic and sympathetic parts of the system
autonomic plexus supplies the cardiac plexus forming the
widespread in the heart base. In areas close the sinoatrial node and atrioventrikuler, there are nerve cells ganglion and nerve fibers. These nerves affect heart rhythm, in which stimulation of the parasympathetic (nerve the vagus) cause a slowing heart rate, whereas
sympathetic nerve stimulation accelerated pace maker rhythm.
Blood left in the hall will be driven toward the left room, which
will further clean the blood is pumped through the aortic valve
into the aorta (largest artery in the body). Blood rich
oxygen is provided for the entire body except the lungs.
The rate pulse, heart rate or work is controlled pump
experienced by a “regulatory rhythm”. This consists of a group of
in particular, called sinotrialis node, which is located within
Right porch wall. An electrical impulse is transmitted from the second node to the porch sinotrialis make them contract simultaneously. An electric current is then in go to the cubicle walls, which in turn makes
chambers contract simultaneously.