Q Unit 9: Discussion Pick 2 of the bulleted prompts below to write about in this week’s discussion. Unit 9 – Nervous System • Differentiate the 2 divisions of the nervous system. List their main functions. • List the components of the neuron and list the function of each part. List the 6 glial cells, each of their functions and whether they are found in the CNS of PNS. • Identify events involved in the generation and propagation of action potential. Tell how this occurs across the cell membrane and what activates receptors. • Differentiate the structures of a synapse. List in order the events of nerve impulse transmission and how resting membrane potential becomes action potential. Define the terms depolarization, repolarization refractory period and graded potential. Describe chemically gated and voltage-gated ion channels. • Differentiate the 5 main categories of neurotransmitters. List their effect of target organs. Which one is cholinergic and which is adrenergic? Describe salutatory conduction. What roles do Oligodendrocytes, Schwann cells, and Nodes of Ranvier play in nerve conduction? Tell which branch of the nervous system you find Oligodendrocytes and Schwann cells in. ________________________________________________________________________ General Discussion Requirements Your initial response to the Prompt below should be posted no later than midnight on Day 4 of the academic week. Your input should be in your own words, demonstrating your understanding and comprehension of the topic. Copying and Pasting from the internet will result in a zero. It is expected that you will include both in-text and final references properly formatted in APA on all initial discussion postings. For help with this refer to the Academic Writer tab to the left of your screen. Then, I want to see you respond to your classmates in the middle of the week (try for Day 4, 5, or 6). The purpose here is to generate discussion to further explore the topics...ask questions, add insight, agree or disagree, etc. Of course, all discussion should be positive and professional. Do not complete all discussions requirements in one sitting, ideally; you should post in the discussion 3-4 different days throughout the week. If you have questions about this participation requirement, post them to the Course Questions Forum. Refer to the syllabus for a complete breakdown of the expectations.