PSY 100 Lecture Notes - Lecture 5: Muscle Contraction, Reuptake, Acetylcholine
Document Summary
Neural communication: every idea, mood, and urge is a biological happening, biological psychologists study the links between our biology and behavior, our information systems are similar to those of other animals. Neurons: nerve cells are called neurons. And are the building blocks of the nervous system: neurons differ, but generally have a similar structure across type o, tell me: describe each part of the neuron and its" processes. The neural impulse: a neuron"s dendrites are stimulated, then it sends a signal down the axon to the terminals. This is known as an action potential: action potentials operate on an all or none rule. Has a refractory period where it cannot fire an a. p. for a bit: like batteries, neurons generate electricity from chemical events, an exchange of ions (electrically charge atoms) occurs o, neurons receive both excitatory and inhibitory signals. Inhibitory brake pedal: an action potential occurs once a minimum threshold is met **
