Download - CN9-sistema nervoso
![Page 1: CN9-sistema nervoso](https://reader038.vdocumento.com/reader038/viewer/2022102322/58ef27d51a28abe9108b466b/html5/thumbnails/1.jpg)
Sistema nervoso
Prof. Ana Rita Rainho
• Anatomia• Propagação do impulso nervoso• Sinapse
![Page 2: CN9-sistema nervoso](https://reader038.vdocumento.com/reader038/viewer/2022102322/58ef27d51a28abe9108b466b/html5/thumbnails/2.jpg)
Sistema Nervoso
Estímulo (sensorial)
Resposta (motora)
Integração da informação
Campbell, N. A.; Reece, J. B. (2002); Biology; 6th ed.; Benjamin Cummings; San Francisco; p.1023.
Receptor sensorial
EfectorEncéfalo e medula espinal
Sistema nervoso central (SNC)
Sistema nervoso periférico (SNP)
![Page 3: CN9-sistema nervoso](https://reader038.vdocumento.com/reader038/viewer/2022102322/58ef27d51a28abe9108b466b/html5/thumbnails/3.jpg)
![Page 4: CN9-sistema nervoso](https://reader038.vdocumento.com/reader038/viewer/2022102322/58ef27d51a28abe9108b466b/html5/thumbnails/4.jpg)
Sistema Nervoso Central
Constituído por:
CérebroActos conscientes, percepção, fala, movimentos voluntários
Encéfalo
Cérebro
CerebeloBolbo raquidiano
CerebeloEquilíbrio, postura eCoordenação muscularBolbo raquidianoRegula algumas funções autónomas, como a respiração, a deglutição, o ritmo cardíaco ou a tosse
Web – encéfalo 3D
![Page 5: CN9-sistema nervoso](https://reader038.vdocumento.com/reader038/viewer/2022102322/58ef27d51a28abe9108b466b/html5/thumbnails/5.jpg)
Sistema Nervoso Central
Espinal Medula
Fazem parte do SN Periférico
Faz a ligação entre o
encéfalo e o SN Periférico
![Page 6: CN9-sistema nervoso](https://reader038.vdocumento.com/reader038/viewer/2022102322/58ef27d51a28abe9108b466b/html5/thumbnails/6.jpg)
Fazem parte do SN Periférico
Sistema Nervoso Central
Espinal medula Faz a ligação entre o encéfalo e o sistema nervoso periférico
![Page 7: CN9-sistema nervoso](https://reader038.vdocumento.com/reader038/viewer/2022102322/58ef27d51a28abe9108b466b/html5/thumbnails/7.jpg)
Estrutura do Neurónio
Terminal sináptico
Axónio Corpo celular
Núcleo
DendriteBainha de mielina
Nódulo de Ranvier
![Page 8: CN9-sistema nervoso](https://reader038.vdocumento.com/reader038/viewer/2022102322/58ef27d51a28abe9108b466b/html5/thumbnails/8.jpg)
Diversidade de formas
![Page 9: CN9-sistema nervoso](https://reader038.vdocumento.com/reader038/viewer/2022102322/58ef27d51a28abe9108b466b/html5/thumbnails/9.jpg)
Ao microscópio…
![Page 10: CN9-sistema nervoso](https://reader038.vdocumento.com/reader038/viewer/2022102322/58ef27d51a28abe9108b466b/html5/thumbnails/10.jpg)
![Page 11: CN9-sistema nervoso](https://reader038.vdocumento.com/reader038/viewer/2022102322/58ef27d51a28abe9108b466b/html5/thumbnails/11.jpg)
![Page 12: CN9-sistema nervoso](https://reader038.vdocumento.com/reader038/viewer/2022102322/58ef27d51a28abe9108b466b/html5/thumbnails/12.jpg)
![Page 13: CN9-sistema nervoso](https://reader038.vdocumento.com/reader038/viewer/2022102322/58ef27d51a28abe9108b466b/html5/thumbnails/13.jpg)
![Page 14: CN9-sistema nervoso](https://reader038.vdocumento.com/reader038/viewer/2022102322/58ef27d51a28abe9108b466b/html5/thumbnails/14.jpg)
![Page 15: CN9-sistema nervoso](https://reader038.vdocumento.com/reader038/viewer/2022102322/58ef27d51a28abe9108b466b/html5/thumbnails/15.jpg)
As experiências de Luigi Galvani
No século XVIII surgem as primeiras intuições sobre os fenómenos eléctricos e magnéticos. Galvani descobre por acidente
que os músculos de uma rã se contraem se fechar o circuito entre os nervos e os músculos com um
fio de cobre.
![Page 16: CN9-sistema nervoso](https://reader038.vdocumento.com/reader038/viewer/2022102322/58ef27d51a28abe9108b466b/html5/thumbnails/16.jpg)
Transmissão do impulso nervoso
Libertação de neurotransmissoresFenda sináptica
![Page 17: CN9-sistema nervoso](https://reader038.vdocumento.com/reader038/viewer/2022102322/58ef27d51a28abe9108b466b/html5/thumbnails/17.jpg)
Estrutura de uma sinapse
![Page 18: CN9-sistema nervoso](https://reader038.vdocumento.com/reader038/viewer/2022102322/58ef27d51a28abe9108b466b/html5/thumbnails/18.jpg)
![Page 19: CN9-sistema nervoso](https://reader038.vdocumento.com/reader038/viewer/2022102322/58ef27d51a28abe9108b466b/html5/thumbnails/19.jpg)
Mais materiais disponíveis em:www.espacociencias.com