Valves of the Heart. The heart functions by pumping blood both to the lungs and to the systems of the body. To prevent blood from flowing backwards or âregurgitatingâ back into the heart, a system of one-way valves are present in the heart.
An electric circuit is a path in which electrons from a voltage or current source flow. Electric current flows in a closed path called an electric circuit. The point where those electrons enter an electrical circuit is called the source of electrons.
Jalen Heyward. Conclusion. Describe the path of an electrical impulse as it moves through a neuron. You must use the words axon, axon terminal, dendrites, myelin sheath, nodes of Ranvier, synapse and neurotransmitters in your description. Electron impulses moving through neurons begin with the dendrites. Within the dendrites the electrical impulse passes through the cell body and travels along the axon. The electrical impulse reaches the synapse at the end of the axon it causes the release of neurotransmitters.