11: Fundamentals of the Nervous System and Nervous Tissue Study guide Functions and Divisions of the Nervous System 1. List the basic functions of the nervous system. 2. Explain the structural and functional divisions of the nervous system. Histology of Nervous Tissue 3. List the types of neuroglia and cite their functions. 4. Define neuron‚ describe its important structural components‚ and relate each to a functional role. 5. Differentiate between a nerve and a tract
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The TheNervous NervousSystem System Prof. Melvin Carreon Physiological Psychology University of the East Anatomical Directions Rostral/Anterior – toward the head of a fourlegged animal Caudal/Posterior – toward the tail Inferior/Ventral – toward the belly Superior/Dorsal – toward the back Neuraxis – an imaginary line that runs the length of the spinal cord to the front of the brain Midline – an imaginary line dividing the body into two equal halves Ipsilateral – directional term
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-We have 2 parts in our nervous system: The central nervous system (CNS) is the nerves in our brain and spinal chord. The peripheral nervous system (PNS) is a network of nerve cells in the rest of our body. -Our nervous system detects stimuli and allows us to react to them. -Stimulus: a change‚ action or occurrence in the environment that can cause an organism to respond. Eg. Light‚ noise‚ pressure… How do we detect stimuli? -We have sensory organs that detect particular stimuli eg. Skin What
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The Nervous System The nervous system is the most complex part of the body‚ as they govern our thoughts‚ feelings‚ and bodily functions. It is an important factor in science because it can lead to new discoveries for cures or diseases. The studies of the nervous system helped lower death rates from heart disease‚ stroke‚ accidents‚ etc. The nervous system is a network of neurons (nerve cells) that that sends information to the brain to be analyzed. Neurons live both in and outside the central nervous
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Biology 3201 1. Unit 1- Maintaining Dynamic Equilibrium II Ch. 12 – The Nervous System (pp. 390-419) 12.1 – Structure of the Nervous System nervous system: a high-speed communication system which delivers information to and from the brain and spinal cord and all over the body. In any nervous system‚ there are 4 main components: (1) sensors: gather information from the external environment (sense organs) (2) conductors: carry information from sensors to modulators or from modulators to effectors (nerves)
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Nervous System Functions of the Nervous System 1. Detect changes and feel sensations 2. Initiate responses to changes 3. Organize and store information Divisions 1. Central Nervous System – brain and spinal cord 2. Peripheral Nervous System – cranial nerves and spinal nerves (relays info to/from the CNS) - Autonomic Nervous System Nerve Tissue – neurons (nerve fibers) and specialized cells (Schwann‚ neuroglia) 1. Neuron cell body contains the nucleus; cell bodies are in the CNS or trunk;
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Photography Text Questions Please complete the following questions. It is important that you use full sentences and present the questions and answers when you submit your work. Submit the work as a file attachment. This means you complete all work in a word processing document (e.g.‚ Microsoft Word) and attach the file using the dropbox tool. Use the Unit 1: Text Questions dropbox basket. The answers to the Review & Critical Thinking questions are worth 10 points. Review & Critical Thinking Questions
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Chapter 1 Critical and Creative Thinking Questions: 3. Uniformitarianism accounts for these catastrophic events because events that are happening now happened in the past can happen again in present or future time. 4. Geologic processes affect our daily lives through dependence of Earth’s resources. We adapt through changes on Earth from volcanoes‚ floods‚ and earthquakes. We have to adapt to live on the planet. Chapter 2 Critical and Creative Thinking Questions: 1. The same minerals
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Review Questions 1. What are the three types of fingerprints found in the human population? How often does each occur? 1. Loop Fingerprints‚ 60-60% 2. Whorl Fingerprints‚ 30-35% 3. Arch Fingerprints‚ 5% 2. What is a medulla? What do forensic scientists use this for? The medulla is the set of cells that run through hair. Forensic scientists use the medulla to look at the shape and color of pigment and also to see if the hair has been bleached or dyed. 3. What is a precipitin test? What is it
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Comprehending or Critically Thinking? Throughout high school‚ my strongest subject was English. I never challenged myself in math or science but I always took pride in how well I did in English class. As I entered my senior year‚ I was excited to take AP Literature because I believed I would be taking a course that demanded more of me as a writer and as a student. During the first class session‚ my teacher explained what our year looked like according to the works we were going to read. The class
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