Download - Histologia Humana - Tecido Muscular
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7/25/2019 Histologia Humana - Tecido Muscular
1/9
29/03/20
Tecido MuscularProfessora: MSc. Kelly Samara de Lira Mota
Email: [email protected]
Faculdade So Francisco da ParabaFASP
Curso de Farmcia Tecido muscular
Origem
Diferenciao ocorre devido a um processo dealongamento gradativo com simultnea sntese deprotenas filamentosas
Tecido muscular
Origem
Tipos de msculos
Msculo cardaco
Clulas ramificam
nico ncleo central
Estriaes
Involuntrio
Msculo lisoClulas em forma de fuso
nico ncleo central
Sem estriaes
Involuntrio
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7/25/2019 Histologia Humana - Tecido Muscular
2/9
29/03/20
Tecido muscular
Clulas alongadas
Mltiplos ncleos
Estriaes
Voluntrio
Msculo esqueltico
Tecido muscular
Caractersticas gerais
50% do peso corporal
Propriedade contrtil
Habilidade de transformar energia qumica (ATP) mecnica
Clulas alongadas
Grande quantidade de filamentos citoplasmticos
Tecido muscular
Funes
Produzir os movimentos do corpo
Estabilizar as posies do corpo
Regular o volume dos rgos
Mover substncias no interior do corpo
Produzir calor
Msculo esqueltico
40% do peso corporal
Associados ao esqueleto
Contrao rpida e lenta
Metabolismo aerbico/anaerbico
Diferenas interssexuais
Caractersticas gerais do msculo esqueltico
http://images.google.com.br/imgres?imgurl=http://neofronteras.com/wp-content/photos/musculo_artificial.jpg&imgrefurl=http://escuelakine.blogspot.com/2007_06_01_archive.html&usg=__qIGjyhkNe4dDyx-TFumdmlhFd-A=&h=161&w=200&sz=35&hl=pt-BR&start=497&um=1&itbs=1&tbnid=tTRyWlg2UE7OFM:&tbnh=84&tbnw=104&prev=/images?q=musculo+estriado+esqueletico&start=480&um=1&hl=pt-BR&sa=N&rlz=1R2ADBF_pt-BR&ndsp=20&tbs=isch:1http://images.google.com.br/imgres?imgurl=http://www.biotravel.com.br/index_arquivos/image4511.jpg&imgrefurl=http://www.biotravel.com.br/index_arquivos/Page413.htm&usg=__OpUm47SF91Ur_nvtdstjufPQa5w=&h=232&w=189&sz=11&hl=pt-BR&start=443&um=1&itbs=1&tbnid=WK0dMLFvNozDfM:&tbnh=109&tbnw=89&prev=/images?q=musculo+estriado+esqueletico&start=440&um=1&hl=pt-BR&sa=N&rlz=1R2ADBF_pt-BR&ndsp=20&tbs=isch:1http://images.google.com.br/imgres?imgurl=http://neofronteras.com/wp-content/photos/musculo_artificial.jpg&imgrefurl=http://escuelakine.blogspot.com/2007_06_01_archive.html&usg=__qIGjyhkNe4dDyx-TFumdmlhFd-A=&h=161&w=200&sz=35&hl=pt-BR&start=497&um=1&itbs=1&tbnid=tTRyWlg2UE7OFM:&tbnh=84&tbnw=104&prev=/images?q=musculo+estriado+esqueletico&start=480&um=1&hl=pt-BR&sa=N&rlz=1R2ADBF_pt-BR&ndsp=20&tbs=isch:1http://images.google.com.br/imgres?imgurl=http://www.biotravel.com.br/index_arquivos/image4511.jpg&imgrefurl=http://www.biotravel.com.br/index_arquivos/Page413.htm&usg=__OpUm47SF91Ur_nvtdstjufPQa5w=&h=232&w=189&sz=11&hl=pt-BR&start=443&um=1&itbs=1&tbnid=WK0dMLFvNozDfM:&tbnh=109&tbnw=89&prev=/images?q=musculo+estriado+esqueletico&start=440&um=1&hl=pt-BR&sa=N&rlz=1R2ADBF_pt-BR&ndsp=20&tbs=isch:1http://images.google.com.br/imgres?imgurl=http://neofronteras.com/wp-content/photos/musculo_artificial.jpg&imgrefurl=http://escuelakine.blogspot.com/2007_06_01_archive.html&usg=__qIGjyhkNe4dDyx-TFumdmlhFd-A=&h=161&w=200&sz=35&hl=pt-BR&start=497&um=1&itbs=1&tbnid=tTRyWlg2UE7OFM:&tbnh=84&tbnw=104&prev=/images?q=musculo+estriado+esqueletico&start=480&um=1&hl=pt-BR&sa=N&rlz=1R2ADBF_pt-BR&ndsp=20&tbs=isch:1http://images.google.com.br/imgres?imgurl=http://www.biotravel.com.br/index_arquivos/image4511.jpg&imgrefurl=http://www.biotravel.com.br/index_arquivos/Page413.htm&usg=__OpUm47SF91Ur_nvtdstjufPQa5w=&h=232&w=189&sz=11&hl=pt-BR&start=443&um=1&itbs=1&tbnid=WK0dMLFvNozDfM:&tbnh=109&tbnw=89&prev=/images?q=musculo+estriado+esqueletico&start=440&um=1&hl=pt-BR&sa=N&rlz=1R2ADBF_pt-BR&ndsp=20&tbs=isch:1http://images.google.com.br/imgres?imgurl=http://neofronteras.com/wp-content/photos/musculo_artificial.jpg&imgrefurl=http://escuelakine.blogspot.com/2007_06_01_archive.html&usg=__qIGjyhkNe4dDyx-TFumdmlhFd-A=&h=161&w=200&sz=35&hl=pt-BR&start=497&um=1&itbs=1&tbnid=tTRyWlg2UE7OFM:&tbnh=84&tbnw=104&prev=/images?q=musculo+estriado+esqueletico&start=480&um=1&hl=pt-BR&sa=N&rlz=1R2ADBF_pt-BR&ndsp=20&tbs=isch:1http://images.google.com.br/imgres?imgurl=http://www.biotravel.com.br/index_arquivos/image4511.jpg&imgrefurl=http://www.biotravel.com.br/index_arquivos/Page413.htm&usg=__OpUm47SF91Ur_nvtdstjufPQa5w=&h=232&w=189&sz=11&hl=pt-BR&start=443&um=1&itbs=1&tbnid=WK0dMLFvNozDfM:&tbnh=109&tbnw=89&prev=/images?q=musculo+estriado+esqueletico&start=440&um=1&hl=pt-BR&sa=N&rlz=1R2ADBF_pt-BR&ndsp=20&tbs=isch:1 -
7/25/2019 Histologia Humana - Tecido Muscular
3/9
29/03/20
Msculo esqueltico
Tendo
Epimsio
Perimsio
Fascculo
Fibra muscular
Endomsio
Perimsio
Endomsio
Fibra
muscular
Ncleo
Nervo, veia e artriaEndomsio
Ncleo
Miofibrila
Sarcolema
Sarcoplasma
Clula satlite
Msculo esqueltico
Msculo esqueltico
Ncleo
Miofibrila
Miofilamentos
Sarcolema
Sarcoplasma
Mitocndria
Retculo sarcoplasmtico
Trade Tbulo T
Cisterna terminal
Msculo esqueltico
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7/25/2019 Histologia Humana - Tecido Muscular
4/9
29/03/20
Msculo esqueltico
sarcmero
Banda I Banda A
Zona H
Linha MDisco Z Disco Z
Msculo esqueltico
Banda IBanda ADisco Z
Cabea
Cauda Regio dedobradia
Stio de ligao da actinaStio ATPase da miosina
Cabea
Cadeia leve essencialCadeia leve regulatria
Filamento grosso
Msculo esqueltico Msculo esqueltico
vv
NebulinaTroponinaTitina
TropomiosinaActina-F
vvvv
Molculas de actina-G
Filamento fino
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7/25/2019 Histologia Humana - Tecido Muscular
5/9
29/03/20
Neurnio motor
Fibras musculares
inervadas por um
nico neurnio
motor
Juno
neuromuscular
Unidade
motora
Msculo esqueltico
Fibra
Muscular
Terminal
axnico
Msculo esqueltico
Anatomia da Juno neuromuscular
Juno neuro-muscular Sinapse entre a neurniomotor e a placa motora terminal de uma fibra muscularesqueltica
Msculo cardaco
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7/25/2019 Histologia Humana - Tecido Muscular
6/9
29/03/20
Msculo cardaco Msculo cardaco
Desmossomas
Unem mecanicamente as clulas cardacas,impedindo que elas se separem durante acontrao
Znulas de adeso
Contm -actinina e vinculina ancorar osfilamentos de actina dos sarcmeros terminais
Junes comunicantes
Comunicao inicas entre as clulas sinccio
Msculo cardaco Msculo cardaco
Muitas mitocndrias (40%)
Tbulos T maiores e RS menosdesenvolvido que o do msculoesqueltico
Tbulos T localizam nos discos Z
Dade tbulo T e uma cisternaterminal
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7/25/2019 Histologia Humana - Tecido Muscular
7/9
29/03/20
Msculo cardaco
Potenciais marcapasso
Velocidade de contrao intermediria
Fora de contrao da fibranica graduada
Inicio da contrao auto-rtmica
Msculo cardaco
Corte longitudinal Corte transversal
Clula individual
Msculo cardaco
Corte longitudinal Corte transversal
Msculo cardaco
Perimsio
Endomsio
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7/25/2019 Histologia Humana - Tecido Muscular
8/9
29/03/20
Msculo cardaco
Disco
intercalado
Ramificao
da fibra
Disco
intercalado
Msculo liso
Localizao
Msculo liso
Retculo endoplasmticopouco desenvolvido
Proeminente RER ecomplexo de Golgi
Mitocndrias dispersas
No possui tbulos T
Msculo liso
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7/25/2019 Histologia Humana - Tecido Muscular
9/9
29/03/20
Msculo liso
Filamentos finos
Actina
Tropomiosina
No contm troponina e nebulina
Msculo liso
Filamento grosso miosina
Msculo liso
Filamento grosso miosina
Filamento de miosina ligam-se aos filamentoslongos de actina
Toda a superfcie da miosina coberta pelosfilamentos de actina
Banda I Zona H
Linha M Disco ZDisco Z
Banda A
Tecido MuscularProfessora: MSc. Kelly Samara de Lira Mota
Email: [email protected]
Faculdade So Francisco da ParabaFASP
Curso de Farmcia
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