`ANP 1105 B – Human Anatomy and Physiology I Contents 1. Structural Organization of the Human Body (2 Lectures) 1.3.1 Tissues Tissue: groups of structurally similar cells that have perform common/related function Tissues cooperate within an organ for function of organ as a whole‚ different issues = division of labor 1.3.2 4 Types of Tissue: 1. Muscle Tissue: movement 2. Epithelial Tissue: covering 3. Nervous Tissue: control (regulation)
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EXERCISE 3: Neurophysiology of Nerve Impulses |ACTIVITY 1: The Resting Membrane Potential |Answers | |The nervous system contains two general types of cells: neuroglia cells and |C- Neurons | |nerves. |
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sodium leakage channels. 6. Since the resting membrane potential is the potential difference between the inside and outside of the cell across the membrane‚ a change would depend on the resting permeability of the membrane to ions. Activity #2 1. 2. Graded potentials can be said to be momentary‚ localized changes in the membrane potential that can be either depolarizing or hyperpolarizing. 3. In the Pacinian corpuscle‚ the moderate intensity pressure modality induced a receptor potential of the
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Campbell’s AP Biology Notes Chapter 48: Nervous Systems Command and Control Center * The human brain contains an estimated 100 billion nerve cells‚ or neurons * Each neuron my communicate with thousands of other neurons * Functional magnetic resonance imaging (fMRI) is a technology that can reconstruct a 3-D map of brain activity * The results of brain imaging and other research methods reveal that groups of neurons function in specialized circuits dedicated to different tasks
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Thursday‚ January 30‚ 2014 Nervous Tissue ! Anatomy & Physiology - Overall Purpose of the Nervous System ! • To keep controlled conditions within limits that maintain life health and homeostasis ! - Regulates body activities by responding via nerve impulses‚ works with the endocrine system which responds by releasing hormones ! • Responsible for our behavior‚ memories‚ and movements ! • Neurology : branch of medicine that deals with normal functioning and disorders of the nervous system
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What passive channels are likely found in the membrane of the olfactory receptor‚ in the membrane of the Pacinian corpuscle‚ and in the membrane of the free nerve ending? Chemical and pressure channels. 2. What is meant by the term graded potential? Graded potential are changes in the transmembrane potential that cannot spread far from the site of stimulus. 3. Identify which of the stimulus modalities induced the largest amplitude receptor potential in the Pacinian corpuscle. How well did
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The Major Issues- Chapter 1 Module 1.1 1. The Mind-Brain Relationship a. Biological Psychology is the study of physiological evolutionary and developmental mechanism of behavior and experience. b. At the microscopic level‚ we find two kinds of cells: the neurons and the glia i. Neurons send messages to each other and also to muscles and glands. They have changing sizes‚ shape and functions. ii. Glia- which are most of the time smaller than neurons have many
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can contact the site resulting in the liberation of energy from the adenosine triphosphate (ATP) molecule. Nerve impulses are sent from the motor cortex of the brain through the spinal cord. The musculocutaneous nerve continues the wave of axon depolarization to individual muscle fibers via motor units. Each motor unit has so many number of motor nerves that extend to individual muscle fibers by way of a neuromuscular junction called the synapse. When the motor nerve is depolarized‚ acetylcholine
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LAB 2 GENERAL CUTANEOUS SENSATIONS INTRODUCTION This lab involves the examination of cutaneous receptors. There are four exercises. For this lab‚ report your observations in a formal report‚ according to the formatting prescribed in Lab Report Format.doc which is found on Blackboard under Assignments/Before You Begin. Equipment needed: Metal calipers or compass with pencil 2 or more blunt probes (ball point pens or forks with blunt tines) 3 pennies 1 liter ice water in
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LABORATORY REPORT Activity: Action Potentials Name: Caitlin Magnacca Instructor: Date: 03.19.2015 Predictions Exceeding threshold depolarization at the trigger zone______the likelihood of generation of an action potential. increases Action potential amplitude decreases with distance Increasing frequency of stimulation to the trigger zone increases number of action potentials Materials and Methods Experiment 1: Effect of Stimulus Strength on Action Potential Generation Dependent Variable membrane
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