SI Session 9 Circulatory and nervous system

2. The part of a neuron that integrates all the incoming IPSPs and EPSPs to determine if an action potential will fire
6. One muscle cell is also called a ___________ __________, and is made up of many myofibrils.
8. This is where the electrical signal that makes the heart pump originates
9. the part of a neuron the propagates an electric signal to the next neuron
11. After an action potential is fired, Na/K pumps and K leak channels must bring the charge of the cell back to resting potential because it went through _________________
14. These structures in the heart prevent backflow of blood
15. The type of cell that sends an electric signal to effector organs/muscles
16. These ions must enter the end of an axon in order to tell vesicles holding neurotransmitters to fuse with the cell membrane

1. Action potential is said to "jump" down an axon because of the layers of _____________ ____________
3. A graph that responds to the electrical signals of the heart
4. As an action potential reaches the end of the pre-synaptic neuron, electrical signal turns into _____________ signal
5. This is the force exerted on the walls of arteries, capillaries and veins
7. The rapid, potential change in a cell's membrane potential
10. ions flow through ____________ gated channels
12. The type of cell that transmits electric signals from a sensor to a motor neuron
13. this type of signal will lower the membrane potential of a cell