Neurophysiology & Molecular Biology: Action Potential, Dendrites, Synapse, Quizzes of Psychology

Download Neurophysiology & Molecular Biology: Action Potential, Dendrites, Synapse and more Quizzes Psychology in PDF only on Docsity! TERM 1 Action Potential DEFINITION 1 In physiology, an action potential is a short-lasting event in which the electrical membrane potential of a cell rapidly rises and falls, following a consistent trajectory. TERM 2 Dendrite DEFINITION 2 Dendrites are the branched projections of a neuron that act to conduct the electrochemical stimulation received from other neural cells to the cell body, or soma, of the neuron from which the dendrites project. TERM 3 Immunocytochemistry DEFINITION 3 Immunocytochemistry is a common laboratory technique that uses antibodies that target specific peptides or protein antigens in the cell via specific epitopes. TERM 4 Polymerase Chain Reaction DEFINITION 4 The polymerase chain reaction is a scientific technique in molecular biology to amplify a single or a few copies of a piece of DNA across several orders of magnitude, generating thousands to millions of copies of a particular DNA sequence. TERM 5 PET Scan DEFINITION 5 Positron emission tomography is a nuclear medicine imaging technique that produces a three-dimensional image or picture of functional processes in the body. TERM 6 MRI DEFINITION 6 Magnetic resonance imaging, nuclear magnetic resonance imaging (NMRI), or magnetic resonance tomography (MRT) is a medical imaging technique used in radiology to visualize detailed internal structures. TERM 7 Synapse DEFINITION 7 In the nervous system, a synapse is a junction that permits a neuron to pass an electrical or chemical signal to another cell.Types:Axo-AxonalDendro-AxonalAxo-Somatic TERM 8 Oligodendrocyte DEFINITION 8 Oligodendrocytes, or oligodendroglia (Greek, few tree glue), are a type of brain cell. TERM 9 Schwann Cell DEFINITION 9 Schwann cells or neurolemmocytes are the principal glia of the peripheral nervous system. TERM 10 Ions DEFINITION 10 Ca 2+, Cl -, Na +, K + are the four used between cells to communicateAn ion is an atom or molecule in which the total number of electrons is not equal to the total number of protons, giving it a net positive or negative electrical charge.