Why is Your Spinal Cord So IMPORTANT? #shorts @TaimTalksMed

Uploaded August 2024 | Updated September 2026, 3 weeks ago

Spinal Cord Internal Structures Anatomy in 1 Minute

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Video Description Keywords:

Spinal cord anatomy
Grey matter
White matter
Anterior horn
Posterior horn
Lateral horn
Spinal cord tracts
Sensory processing
Motor control
Sympathetic nervous system
Parasympathetic nervous system
Spinal cord function
Nerve cell bodies
Axons

#SpinalCordAnatomy #Neuroscience #GreyMatter #WhiteMatter #MotorControl #SensoryProcessing #SympatheticNervousSystem #ParasympatheticNervousSystem #HealthEducation #MedicalEducation #TaimTalksMed #Taim #TaimTalks #AnatomyExplained #NervousSystem #MedicalShorts #USMLE #MedStudents #MedicalStudents #USMLEPrep #reels #reelsinsta

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Why is Your Spinal Cord So IMPORTANT? #shorts

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$Action Potential Made Easy - Nerve Physiology 🌐 Website: https://taimtalksmed.com/ 🫀 Help keep this content free: youtube.com/channel/UCEr7pkSXVsHcBLLBcJAGV-Q/join 🔬 Get 10% off anatomy lab models (affiliate link): https://anatomywarehouse.com?aff=34 📲 Other Links: Instagram: https://www.instagram.com/taimtalksmed/ Discord: https://discord.com/invite/DENMUpS8ey This video is about the general physiology of a nerve (Potentials, Polarizations, Permeability, and Excitability) Content: 0:00 Introduction 1:25 Basic Physiological Rules of a Cell 3:25 Rules of Transport Across the Membrane 3:36 Passive Transport 6:24 Active Transport 8:40 Membrane Potentials 13:54 Action Potentials 17:55 Impulse Conduction 19:40 Saltatory Conduction 20:25 All-or-None Law Basic physiological rules of the cell: - More negative inside the cell than on the outside. - Difference in extracellular and intracellular fluid - Nernst Equation calculates the charged ions across a membrane Transport through the cell membrane: Passive Transport: - Simple diffusion (has to be small, lipophilic and no charge) - Facilitated diffusion (Ion channel and Gated channels) - Filtration - Electrokinetic transport - Osmosis Active Transport: Primary Active Transport: Na/K Pump, Ca Pump Secondary Active Transport: Na/Glucose, Na/Amino Acids, Na/H Nerve: Functionally divided into three parts: Receptive Part: Dendrites Integrating part: Cell body and Axon Hillock Transmitting part: Axon Resting Potential: Typically -70 mV - Chemical gradient outside, Electrical Gradient inside = Electrochemical gradient outside - Sodium and Potassium goes in and out of cell throguh Ion Channels - Sodium potassium pump pumps 3 sodium out, 2 potassium in Action potential: - Voltage-Gated Channels - Excitability - Two gates on VG-Channel - Activation gate and inactivation gate - Changes of excitability during an action potential - Permeability of cell membrane during different stages of action potential: 1. resting state: Sodium and Potassium are unable to pass through the gated channels. Inside the cell: Negative 2. Depolarization: Sodium starts flowing in, inside the cell: positive 3. After depolarization comes repolarization, where the sodium channel close, and the potassium channel opens. Outflux of potassium brings cells back to more negative than the initial state (Hypoerloarization). This is the refractory period Conduction of action potential through a nerve axon. - Continous Conduction (Unmyelinated) - Saltatory Conduction (Myelinated) All-Or-None Law - Either we get a action potential, or not. - Chemical Synapse with Ligand gated channels, or chemically gated channels - Excitatory or Inhibitory #nervephysiology #physiology #nerve #neuron #actionpotential$

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