Potentials - Samenvattingen en Aantekeningen

Graded Potentials ACTUAL Exam Questions and CORRECT Answers Graded potentials are - CORRECT ANSWER - Brief Short distance signals within a neuron. Short-lived, localized changes in membrane potential, usually in dendrites or the cell body. They can be either depolarizations or hyperpolarizations. These changes cause current flows that decrease in magnitude with distance. Action Potentials are - CORRECT ANSWER - Brief Long distance signals within a neuro

Electroencephalography (EEG) & Evoked Potentials Questions With Solutions 1. EEG defined a. The EEG is a measurement of ?. These voltage fluctuations are called? b. EEG recording: i. In humans, the electrodes are small metal disks pasted to the surface of the scalp by an electricity conducting gel. ii. There are two electrodes plugged into each amplifier on the EEG machine. The EEG recorder detects the voltage differences between the recording and reference electrode for each channel ...

TEST BANK for Guyton and Hall Textbook of Medical Physiology 13th Edition by Hall John. ISBN 9303, ISBN-13 978-2 _TABLE OF CONTENTS:_ 1. Functional Organization of the Human Body and Control of the "Internal Environment" 2. The Cell and Its Functions 3. Genetic Control of Protein Synthesis, cell function, and cell reproduction II. Membrane Physiology, Nerve, and Muscle 4. Transport of Substances Through Cell Membranes 5. Membrane Potentials and Action Potentials 6. Contraction of Skeletal Muscle...

At an ion's equilibrium potential, the net movement of that ion across the membrane is zero since the energy of its concentration gradient is ____ the voltage difference. - ️️exactly offset by Neurotransmitters are released by the membrane of axon terminals by the process of ____, and the neurotransmitters act as _____ signals when they bind with receptors on the next neuron in the pathway. - ️️exocytosis; paracrine Signals that affect nearby target cells after diffusing through...

Psychology 1101 - Chapter 2 (Neuroscience) Exam QuestionsWith 100% Correct Answers The study of how the brain and nervous system affect mental processes and behavior. - answerneuroscience Cells in the nervous system that transmit information. - answerneurons Brain cells that provide important support functions for the neurons and are involved in the formation of myelin. - answerglia cells A fatty, waxy substance that insulates portions of some neurons in the nervous system. - answermyeli...

action potential can be generated by virtually all cells of the body because all cells possess cell membranes - ANSWERfalse, only cells with excitable membranes such as nervous and muscle cells can generate action potential Nodes of Ranvier are only found on myelinated, peripheral neural processes - ANSWERtrue efferent nerve fibers may be described as motor nerve fibers - ANSWERtrue a positive feedback cycle is the main force in the generation of graded potentials at receptor ends - ANS...

Neuron Structure - dendrites, cell body, axon dendrites - short, highly branched signal receptive regions of the nerve cell. Convey incoming message toward cell bodies each nerve cell (neuron) has only one - axon axon - impulse generating and conducting region of neuron myelin sheath - Whitish fatty protein layer that protects and electrically insulates the axon. Increases the speed of transmission of nerve impulses myelin sheath is only associated with - axons, not dendrites what determ...

Graded Potentials UPDATED ACTUAL Exam Questions and CORRECT Answers What is a graded potential? - CORRECT ANSWER - small deviation from the resting membrane potential that makes a membrane more polarized or less polarized What does more polarized mean? - CORRECT ANSWER - more negative inside What does less polarized mean? - CORRECT ANSWER - less negative inside

NURS 5315 Advanced Pathophysiology Test 1 2023. Decreases citric acid cycle production of NADH and leads to using Acetyl-CoA for ketogenesis and lipogenesis What can Reactive Oxygen Species cause? - ANSWER Heart disease, Alzheimers, Parkinsons, Amyotrophic Lateral Sclerosis (ALS), CV disease, HTN, HLD, DM, ischemic heart disease, HF, OSA. Lipid perioxidation, damage proteins, fragment DNA, less *protein synthesis*, chromatin destruction, damage mitochondria What is the body's defense agai...

This is a comprehensive and detailed guide Membrane Transport Mechanisms and Action Potentials