Conduction Of Electrical impulse in the Axon : Nerve Physiology скачать в хорошем качестве

Conduction Of Electrical impulse in the Axon : Nerve Physiology

𝐒𝐮𝐛𝐬𝐜𝐫𝐢𝐛𝐞 𝗙𝐨𝐫 𝗠𝐨𝐫𝐞 𝗜𝐧𝐟𝐨𝐫𝐦𝐚𝐭𝐢𝐨𝐧 𝐨𝐧 𝗛𝐞𝐚𝐥𝐭𝐡 👩‍⚕‍ 𝐚𝐧𝐝 𝗠𝐞𝐝𝐢𝐜𝐢𝐧𝐞💉🩺💊 𝐘𝐨𝐮𝐭𝐮𝐛𝐞 :    / @medschoolsimplified007   📌𝗙𝗮𝗰𝗲𝗯𝗼𝗼𝗸 :   / draishwaryakelkar   📌𝗧𝘄𝗶𝘁𝘁𝗲𝗿:   / aishwayadr   📌𝗜𝗻𝘀𝘁𝗮𝗴𝗿𝗮𝗺 :   / clinical.learning   Conduction Of Electrical impulse in the Axon ------------------------------------------------------------------------- The conduction of electrical impulses in the axon is a fundamental process in neuronal communication, essential for the rapid transmission of signals throughout the nervous system. An action potential, initiated at the axon hillock, travels along the axon through a series of depolarization and repolarization events. This wave-like propagation is facilitated by the opening and closing of voltage-gated sodium (Na⁺) and potassium (K⁺) channels. When an action potential is triggered, Na⁺ channels open, allowing Na⁺ ions to rush into the cell, causing depolarization. This depolarization triggers adjacent Na⁺ channels to open, propagating the signal down the axon. Following this, K⁺ channels open, allowing K⁺ ions to exit the cell, restoring the negative resting membrane potential in a process called repolarization. The myelin sheath, produced by Schwann cells in the peripheral nervous system and oligodendrocytes in the central nervous system, insulates the axon and enables saltatory conduction, where the action potential jumps between nodes of Ranvier. This results in a much faster transmission speed compared to non-myelinated axons. Understanding this process is crucial for comprehending how the nervous system controls everything from muscle contractions to complex cognitive functions. #Neuroscience #ActionPotential #Neurophysiology #FMGE #NEETPG #USMLE #MedicalStudents #NervousSystem #Axon #SignalTransmission #MyelinSheath #MedEd #StudyMedicine #MedicalExams #NeuronFunction #HealthEducation #FutureDoctors #LearnMedicine #BrainHealth