Understanding the Basics of the Nervous System with Dr. Mohammed Hussein
Explore the fundamentals of the nervous system in Part 1 with Dr. Mohammed Hussein, covering nerve cells, cellular processes, types of neurons, nerve structure, blood vessels, grey matter, and afferent and efferent neurons. Gain insights into the key components that make up this intricate system.
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The Nervous System Part 1 Dr. Mohammed Hussein M.B.Ch.B, MSC, PhD, DCH (UK), MRCPCH
The nerve cell or neuron is the functional unit of the nervous system
Cellular Processes Cell body (Soma)
Types of Neurons Neuron with many processes Neuron with two processes Neuron with one process Multipolar Unipolar Bipolar
Types of Neurons Bipolar Interneuron Unipolar (Pseudo-unipolar) Sensory neuron Multipolar Motor neuron
Structure of the Nerve Structure of the Nerve
Blood vessels Nerve Epineurium Perineurium Perineurium Nerve fiber Endoneurium Myelin sheath Axon Bundle (Fascicle)
Nerve fiber Endoneurium Bundle (Fascicle) Perineurium Nerve Epineurium
Grey matter Cell bodies and Unmyelinated nerve fibers Appear grey or brown under LM Appear white under LM White matter Myelinated nerve fibers
Afferent neurons (Sensory neurons) SAME Sensory = Afferent Motor = Efferent Efferent neurons (Motor neurons)
