ap biology - nervous system: action potentials & synapses

timestamps

• 0:00

  Introduction to Nervous System

• 0:32

  Purpose of Nervous System

• 1:34

  Central and Peripheral Systems

• 2:36

  Neuron Interactions

• 3:06

  Neuron Structure Overview

• 4:39

  Myelin Sheath Function

• 5:40

  Signal Speed and MS

• 7:12

  Message Direction

• 7:42

  Types of Neurons

• 9:14

  Sensory to Motor Pathways

• 10:18

  Reflex Pathways

• 11:53

  Domino Analogy for Signals

• 13:57

  Action Potential Basics

• 14:29

  Concentration Gradients

• 16:33

  Salty Banana Analogy

• 17:36

  Resting Potential

• 18:37

  Depolarization Process

• 19:38

  Repolarization and Hyperpolarization

• 21:10

  Neurotransmitters Role

• 22:44

  Voltage-Gated Channels

• 24:45

  Potassium Outflow

• 26:18

  Hyperpolarization Effects

• 27:21

  Action Potential Propagation

• 29:26

  Synaptic Vesicles

• 30:29

  Synaptic Cleft

• 32:07

  Key Neurotransmitters

• 34:42

  Neurotransmitter Details

• 38:18

  Homeostasis Preview