PPT-The Eye & The Action (Receptor) Potential

Packet 20 Chapter 49 Structure of the Eye The Retina Contains two types of photoreceptors Rods Black and white vision Cones Color vision These photoreceptors connect to a series of neurons that ultimately lead to the optic nerve which ultimately leads to the brain. Learning Objectives. To understand how an action potential is propagated along an axon.. To understand the difference between the propagation of action potentials in . myelinated . and . unmyelinated. 6.5 Nerves, Hormones, and Homeostasis. How do neurons communicate and relay information?. http://www.pennmedicine.org/encyclopedia/em_DisplayAnimation.aspx?gcid=000089&ptid=17. Action Potential. ~1900 Julius Berstein suggested that nerve impulses were an electrochemical message created by the movement of ions through the nerve cell membrane.. DRUGS. Sympathetic nervous system is activated in case of stress.. Nor-adrenaline act as neurotransmitter. Adrenaline act as hormone released from adrenal medulla.. Distribution of Adrenoceptor Subtypes. By. Dr. Ahmed . Hussain. A. . Mujamammi. . Clinical Chemistry Unit. Pathology Department. College of Medicine, KSU. OBJECTIVES. By the end of this lecture, students should be able to:. Acquire the knowledge for general consequence of hormone-receptor interaction . بسم الله الرحمن الرحيم. Objectives . Define graded potential and action potential.. Describe characteristics of graded potential. C. ompare . between the different phases of excitability during a nerve action . And how this relates to the beating of your heart. Outline. The story of an action potential. Digression: Heartbeats and action potentials. Ion Channels. Three stages:. Polarization (and resting state). Overview. Updated: 26 April 2016. 1. What is a Corrective Action Board?. A Corrective Action Board or CAB is the . forum . to communicate, enable, facilitate, and provide oversight and direction for preventive and corrective action activities in order to resolve issues, support improved service and/or product quality, and promote Customer satisfaction. . Conveys information over long distances. Cytosol has negative charge relative to extracellular space. Neural code - frequency and pattern. Action potential. Spike. Nerve impulse. Discharge . Properties of the Action Potential. Conduction Velocity. and. Determining the Site and Extent of Spinal Cord Injuries . based on Sensory Deficits. The proximity of the Ulnar nerve near the surface at elbow and wrist makes it . well suited for studying action potential conduction velocity.. Assistant Professor. MBBS, . Mphil. Stimulus & Modalities. A . stimulus . is a change detectable by the . body.. Stimuli . exist in a variety of energy forms, or . modalities, . such as heat, light, sound, pressure, and chemical changes. Platelets play a critical role in thromboembolic disease like ischemic heart disease and stroke . Platelets adhere to the diseased or damaged areas and become activated , exposing phospholipids and. GPIIb/IIIa. Dr.Viral. I. Champaneri. , MD. Assistant Professor. Department of Physiology. 1. Learning Objectives. Stages of Action Potential . Repolarization. Positive . afterpotential. After . hyperpolarization. Muscular Contraction). September 2021. Dr. Anna Haro. Westside HS. LEARNING Objectives . TEKS: . §130.231.(. c. )(1)(A, & B) and . §130.231.(. c. )(2)(A, B, C, F, & G) & (3)(B). Students will apply previous knowledge of human and cellular biology and chemistry.. What neurons do – the ML version. A neuron . collects signals from . dendrites . (not quite). Sends out spikes of electrical activity through an . axon. , which splits into thousands of branches.. At .