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{"id":18922,"date":"2022-07-15T10:13:01","date_gmt":"2022-07-15T10:13:01","guid":{"rendered":"https:\/\/amslabo.com\/?post_type=product&p=18922"},"modified":"2024-05-30T08:12:48","modified_gmt":"2024-05-30T08:12:48","slug":"serie-de-la-physiologie-des-nerfs-5-modeles-magnetiques-sur-planche-metallique-illustree-3b-smart-anatomy-1","status":"publish","type":"product","link":"https:\/\/amslabo.com\/product\/serie-de-la-physiologie-des-nerfs-5-modeles-magnetiques-sur-planche-metallique-illustree-3b-smart-anatomy-1","title":{"rendered":"S\u00e9rie de la physiologie des nerfs, 5 mod\u00e8les magn\u00e9tiques sur planche m\u00e9tallique illustr\u00e9e – 3B Smart Anatomy 1"},"content":{"rendered":"

Pr\u00e9sentation des \u00e9l\u00e9ments de base du syst\u00e8me nerveux humain. Chacun des 5 \u00e9l\u00e9ments individuels montre une repr\u00e9sentation plastique en relief et en couleur d\u2019un composant d\u2019une cellule nerveuse. Les socles sont pourvus d\u2019aimants pour permettre une manipulation et un stockage pratique, de telle mani\u00e8re que vous puissiez apposer chaque \u00e9l\u00e9ment sur la planche m\u00e9tallique illustr\u00e9e.
\n1. La cellule nerveuse
\nUn couvercle transparent amovible permet la vue dans les structures internes d\u2019une cellule nerveuse typique. Le noyau cellulaire ouvert est entour\u00e9 de mitochondries, de l\u2019appareil de Golgi, et du r\u00e9ticulum endoplasmique, ainsi que des \u00e9l\u00e9ments de base d\u2019une cellule de mammif\u00e8re. Sur la surface ext\u00e9rieure du corps cellulaire, on aper\u00e7oit les terminaisons des synapses des cellules nerveuses avoisinantes.
\n2. Gaines my\u00e9linis\u00e9s du syst\u00e8me nerveux central (SNC)
\nLes impulsions d\u2019excitation sont transmises par les fibres nerveuses. Pour acc\u00e9l\u00e9rer cette transmission, les fibres sont entour\u00e9es d\u2019une isolation. Le mod\u00e8le montre l\u2019isolation par les cellules de la n\u00e9vroglie, typique dans le syst\u00e8me nerveux central, et donc dans le cerveau et dans la moelle spinale.
\n3. Gaines my\u00e9linis\u00e9s du syst\u00e8me nerveux p\u00e9riph\u00e9rique (SNP)
\nLes cellules de Schwann du SNP correspondent aux cellules de la n\u00e9vroglie du SNC. Une telle cellule est repr\u00e9sent\u00e9e ici: une coupe pr\u00e9sente le noyau cellulaire.
\n4. Plaque terminale motrice
\nCet \u00e9l\u00e9ment montre clairement comment l\u2019excitation d\u2019une cellule nerveuse est transmise \u00e0 une fibre musculaire stri\u00e9e du squelette. La plaque terminale motrice pr\u00e9sente une synapse d\u2019une constitution sp\u00e9ciale.
\n5. La synapse
\nLa synapse est la structure de contact typique servant \u00e0 la transmission de l\u2019excitation d\u2019une cellule nerveuse \u00e0 la suivante. On a repr\u00e9sent\u00e9 une grande synapse et sa structure interne. Etant donn\u00e9 qu\u2019il existe de nombreuses variantes de synapse, cinq variantes ont \u00e9t\u00e9 repr\u00e9sent\u00e9es sur le socle.<\/p>\n

Chaque mod\u00e8le anatomique 3B Scientific d\u2019origine comporte d\u00e9sormais ces\u00a0fonctionnalit\u00e9s GRATUITES<\/strong>\u00a0suppl\u00e9mentaires:<\/p>\n