Every cell in our brain consists out of a cell body, dendrites and an axon1. The dendrites are the parts of the cell that receive incoming messages, while the axon is the part of the cell that transmits the information to the next brain cell. Axons normally have a healthy network of b...
Deep within your brain and nervous system, the axons or nerve fibers that transmit information are surrounded by a layer of insulation. Similar to the coating around an electric wire, this layer of insulation is called the "myelin sheath." Scientific studies have shown that the thicker the myel...
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Alessandro Volta, to the medical charlatans claiming to use electricity to cure pretty much anything, to advances in the field helped along by the unusually massive axons of squid. And
Nociceptors send pain messages in electrical impulses along the peripheral nerves, which then travel through the spine and then to the brain. Nociceptor axons are usually unmyelinated, which means that they are slow. Myelin is an insulating sheath that forms around nerves and helps with impulse ...
voice, the sound travels through the air and into your ears—what's referred to as "air conduction." Thesound energyvibrates the ear drum and small ear bones. These bones then transmit the sound vibrations to the cochlea, which stimulates nerve axons that send the auditory signal to the ...
内脏神经ElementsofNervoussystemNeurons神经元BasicfunctioningunitsofthenervoussystemNeuroglia神经胶质SupportingcellsNeuron神经元Cellbody:perikaryon(核周体)Dendrites:receivemessagesfromotherneuronsandsendthemtothecellbodyAxons:carrymessagesawayfromthecellbodySilverStainNisslStainTypesofnervecells(1)ofnervecells(1) ...
pnssensoryreceptorsendingsnerveaxons ThePeripheralNervousSystemChapter14IntroductiontothePNS•Nervousstructuresoutsidethebrainandspinalcord-sensoryandmotorconnectionstotheoutsideworld-nervesthreadthroughoutthebodytoallowtheCNStoreceiveinformationandtakeaction•FunctionalcomponentsofthePNS-sensoryinputsandmotoroutputs-catego...