The bicuspid valve opens and the tricuspid valve closes.
bicuspid valve opens and the tricuspid valve close
inter ventricular septum
in an ECG pattern, the T wave is caused by
The bicuspid valve opens and the tricuspid valve closes.
Contracts to get baby out!
During systole the thick muscular walls of the ventricles contract. This happens to both sides of the heart at about the same time.The contraction of the ventricular muscle raises the pressure in the ventricle. The high pressure in the ventricle forces the bicuspid valve to close and forces blood up the aorta.
by noticing the thickness of the ventricular walls
Inner ventricular walls of the heart, beneath the endocardium.
When smooth muscle in the walls of dermal vessels contracts, the body conserves heat.
The uterine walls
Purkinje Fibers
purkinje fibers
the valves close