tesut muscular 1 2014

Upload: un-oarecare

Post on 24-Feb-2018

234 views

Category:

Documents


2 download

TRANSCRIPT

  • 7/25/2019 Tesut Muscular 1 2014

    1/72

  • 7/25/2019 Tesut Muscular 1 2014

    2/72

  • 7/25/2019 Tesut Muscular 1 2014

    3/72

    './"0.

    ESUT MUSCULAR 1'0.2'

    "#$%&%'(#

    #)*+,-.ie/ 0)12*+-,3 rapid3 42+5,*6.-

    #789(7#

    #)*+,-.ie/ 6*0)12*+-,3 ,6+:6.

    ESUT MUSCULAR NETED#)*+,-.ie/ 6*0)12*+-,3 lent

    #

    !!"!#"#$!%

  • 7/25/2019 Tesut Muscular 1 2014

    4/72

  • 7/25/2019 Tesut Muscular 1 2014

    5/72

    34$23.5206

    Toi muchii scheletici

    '2;21 +60

    #-06+-+5 ;2.-1-

    ?-,6*=5

    superioar esofag

    "@6*.+5, -*-1 5A+5,*

    B2>.C6 5A+,6*>5.6 -6 =1);61), ).21-,6

    74-,-+ ,5>46,-+), D 1-,6*=5

    "@6*.+5, 2,5+,-1 5A+5,*

    !!"!#"#$!%

    $

  • 7/25/2019 Tesut Muscular 1 2014

    6/72

    7.1'486#652

    #51215 -12*=6+53 :21+6*2.15-+5 .5 .)*6**.6+)41->:@61-:5*+5 .)*+,-.+615 .61-6615 .)*.5*+,-656 6F.F

  • 7/25/2019 Tesut Muscular 1 2014

    7/72

  • 7/25/2019 Tesut Muscular 1 2014

    8/72

    !!"!#"#$!%

    '

  • 7/25/2019 Tesut Muscular 1 2014

    9/72(

    !!"!#"#$!%

  • 7/25/2019 Tesut Muscular 1 2014

    10/72

  • 7/25/2019 Tesut Muscular 1 2014

    11/72

    ))

  • 7/25/2019 Tesut Muscular 1 2014

    12/72)!

    !!"!#"#$!%

    +,,-.//0123456789/!!*':!#/;49538?80>=32,@8A47,382=,8=

    ,+1=94574?5,19/B

  • 7/25/2019 Tesut Muscular 1 2014

    13/72)#

    !!"!#"#$!%

  • 7/25/2019 Tesut Muscular 1 2014

    14/72

    !! !# #$!%

  • 7/25/2019 Tesut Muscular 1 2014

    15/72

    = Celula muscular

    $:;+?*>@ 120$4/321&

    &(*A)>->plasmatic @ 120$436&

    B 8)C 0*"12+

    )$

    !!"!#"#$!%

    !! !# #$!%

  • 7/25/2019 Tesut Muscular 1 2014

    16/72

    !!"!#"#$!%

    )%

    STRUCTUR

    ULTRASTRUCTUR

    ORGANIZARE MOLECULAR

    !! !# #$!%

  • 7/25/2019 Tesut Muscular 1 2014

    17/72

    120$4/321&2

    #"$36..

    )&

    !!"!#"#$!%

    !! !# #$!%

  • 7/25/2019 Tesut Muscular 1 2014

    18/72)'

    !!"!#"#$!%

    !! !# #$!%

  • 7/25/2019 Tesut Muscular 1 2014

    19/72

    )(

    !!"!#"#$!%

    'mpuri() '*+,+)-.

    '/.0 '*+,+)-.

    !! !# #$!%

  • 7/25/2019 Tesut Muscular 1 2014

    20/72

    !*

    !!"!#"#$!%

    !! !# #$!%

  • 7/25/2019 Tesut Muscular 1 2014

    21/72

    !)

    .),5>42*

  • 7/25/2019 Tesut Muscular 1 2014

    22/72

    !!

    Acoperit de membrana bazalLamina reticular

    ?6;,5

  • 7/25/2019 Tesut Muscular 1 2014

    23/72

    Interaciunea &DEsarcolemEF:;+?FG(=(;

    32+4*5&"& ,#42+,6&/&4*/& conecteaz aparatul contractil la membrana bazal

    .):415A5 4,)+56.5 >2;D>-,.)15:-15 care ancoreaz

    @61-:5*+515 6*+5,:5

  • 7/25/2019 Tesut Muscular 1 2014

    24/72

    !!"!#"#$!%

    !:

    !! !# #$!%

  • 7/25/2019 Tesut Muscular 1 2014

    25/72

    72 @)>+ .,6>5 +,56 825&%## ,2+4*5&"#,&

    Dou ;)>-?J()?>=(.),5>42*< *60512126benzii Z i a liniei M

    3+-,:;IK:->=le intersecteaz pe celetrasnversale formnd o reea pe faacitoplasmatic a sarcolemei

    #)*5A62*5 >+,2.+2,-1 D transmiterea foreicontractile de la sarcomer ctre membranabazal

    M1-+@),:- 5:*-15 45*+,2 :)656 =5*6.5

    $41'2&606!!"!#"#$!%

    !$

    !! !# #$!%

  • 7/25/2019 Tesut Muscular 1 2014

    26/72

    !!"!#"#$!%

    !%.

    1)(-,)/2-*, *3 2+) 4*52/.)6-4 06*2)-, ,)27*68

    92+) +/6: 7/;

  • 7/25/2019 Tesut Muscular 1 2014

    27/72

    !!"!#"#$!%

    !&

    O C O O S

    !!"!#"#$!%

  • 7/25/2019 Tesut Muscular 1 2014

    28/72

    JONCIUNEA MIOETENDINOAS

    !'

    >/.-,/ ?/5/(-5@/64*()./

    Fibre de reticulin

    A-?6/ :) 4*(/B),

    !!"!#"#$!%

    JONCIUNEA NEUROMUSCULAR

    !!"!#"#$!%

  • 7/25/2019 Tesut Muscular 1 2014

    29/72

    DI;+-I= ;()*:->= Conine/ :6+).)*6*-4+6.5

    Fanta sinaptic Matrice amorf

    /=>F> *+;+):(aria sarcolemei ce participla sinaps D ,5.54+),6 7#C JSTDUT :61K

    n sarcoplasma subiacent exist /

    Mai muli *2.156B6+).)*

  • 7/25/2019 Tesut Muscular 1 2014

    30/72

    #*

    >H+-

    mielin

    Falduri joncionale

    (-K+*:?:I*

    -IF=(I

    L(M:FI=( ?:->F> *+;+):(

    1:?;(* '

    F+-;)>F;>; )(=>H>;

    " " $ %

    !!"!#"#$!%

  • 7/25/2019 Tesut Muscular 1 2014

    31/72

    #)

    !!"!#"#$!%

  • 7/25/2019 Tesut Muscular 1 2014

    32/72

    JONCIUNEA NEUROMUSCULAR

    Terminaia axonal se ramific la nivelul45,6:6>62:2126F

    95 );6.56o jonciune neuroDmuscular/ celul

    2* *52,)* :)+), poate contacta pn la VWT.51215 :2>.21-,5 I "#.'2'6 &4'40.6

    Ramificaiile pierd teaca de mielin i se termin4,6*+,Do poriune dilatat AI;+- ;()*:->=n.)*+-.+ -,.)15:-

    #!

    !!"!#"#$!%

  • 7/25/2019 Tesut Muscular 1 2014

    33/72

    ##

    !!"!#"#$!%

  • 7/25/2019 Tesut Muscular 1 2014

    34/72

    92:#%* ;24-/#%icmpiedic eliberarea ACh din segmentul preD>6*-4+6.F

    3-"*"*blocheaz rec 7#C D 4-,-16E65

  • 7/25/2019 Tesut Muscular 1 2014

    35/72

    8"*-.9F>J+EN F>J>E = cavern,adncitur

    Invaginri ale membranei plasmatice

    ?),:- D

    9 I WTDVTT *:

    L* +64 >45.6-1

    Funcii: ',-*>4),+ X

    endocitoz

    transcitoz

    "5:*-16E-,5412+5 1646

  • 7/25/2019 Tesut Muscular 1 2014

    36/72

    #%

    Invaginri profunde ale>-,.)15:56

    9):5*66 +6*.+5 -15

    >-,.)15:56

    &).-16E-+5 1- 16:6+- -,.)15:56

    !!"!#"#$!%

  • 7/25/2019 Tesut Muscular 1 2014

    37/72

    4),>-:;( ?-:;( F+*I-(

    N2.156

    B6+).)*

  • 7/25/2019 Tesut Muscular 1 2014

    38/72

    &.4!.D0.3636"+,2.+2,6 .616*2+5Q @6;,-muscular

    96-:5+,2 / VD2 mAezate paralel ntre ele i cu axul12*= -1 .512156

    Ancorate de faa intern a>-,.)15:56

    Alternana de benzi clare intunecate

    Unitate repetitiv = 120$4&60"3#'

    !!"!#"#$!%

  • 7/25/2019 Tesut Muscular 1 2014

    39/72

    #(

    !!"!#"#$!%

  • 7/25/2019 Tesut Muscular 1 2014

    40/72

    120$4&60"3

    L*6+-+5- :),@)Dfuncional

    9516:6+-+

  • 7/25/2019 Tesut Muscular 1 2014

    41/72

    :)

    !!"!#"#$!%

  • 7/25/2019 Tesut Muscular 1 2014

    42/72

    :!

    !!"!#"#$!%

  • 7/25/2019 Tesut Muscular 1 2014

    43/72

    :#

    !!"!#"#$!%

  • 7/25/2019 Tesut Muscular 1 2014

    44/72

    ::

    !!"!#"#$!%

  • 7/25/2019 Tesut Muscular 1 2014

    45/72

    :$

    06'.$"3"3 120$4/321&2'.$!!"!#"#$!%

  • 7/25/2019 Tesut Muscular 1 2014

    46/72

    06'.$"3"3 120$4/321&2'.$

    325.-+ 8#%/

    "6>+5: +2;21-,

    $:?;()-( ;()*:->=(

    nconjoar fiecare miofibril

    Y .6>+5,*5 +5,:6*-15 -4)*>-;61

  • 7/25/2019 Tesut Muscular 1 2014

    47/72

    :&

  • 7/25/2019 Tesut Muscular 1 2014

    48/72

    !!"!#"#$!%

  • 7/25/2019 Tesut Muscular 1 2014

    49/72

    :(

    BAZELE MOLECULARE ALE CONTRACIEI

    !!"!#"#$!%

  • 7/25/2019 Tesut Muscular 1 2014

    50/72

    BAZELE MOLECULARE ALE CONTRACIEIPQRS1=:K:-, O:=>*(-; ;G(+)T

    $*

    !"#$%& () *)+,- ./%-%01%02% C

    D,@47,4@

  • 7/25/2019 Tesut Muscular 1 2014

    51/72

    $)

  • 7/25/2019 Tesut Muscular 1 2014

    52/72

    $!

    !!"!#"#$!%

  • 7/25/2019 Tesut Muscular 1 2014

    53/72

    $#

    !!"!#"#$!%

  • 7/25/2019 Tesut Muscular 1 2014

    54/72

    $:

    !!"!#"#$!%

  • 7/25/2019 Tesut Muscular 1 2014

    55/72

    CONDIII NECESARE/

    Potenial de aciune Concentraie ridicat de !" #$

    7'M

    Toate sarcomerele se contract sincron,deci ntregul muschi va avea aceeai rat

    de contracie

    $$

  • 7/25/2019 Tesut Muscular 1 2014

    56/72

    $%

    !!"!#"#$!%

  • 7/25/2019 Tesut Muscular 1 2014

    57/72

    $&

    !!"!#"#$!%

  • 7/25/2019 Tesut Muscular 1 2014

    58/72

    M,6*+,5 :6)@6;,615

  • 7/25/2019 Tesut Muscular 1 2014

    59/72

    $(

    *

    :

    ;

    +

    F

    +

    -

    K

    )

    :

    (

    .-F=IM:I-(

    lipidic

    './"0. 7.1'4!.5.4348.$6 96 !.D06

    !!"!#"#$!%

  • 7/25/2019 Tesut Muscular 1 2014

    60/72

    &"1$"3206 1$7636'.$6PU Fibre roii I 4#. BI

    :6)=1);6*3 *2:5,)->5 :6+).)*: -5,);

    Se contract lent Jactivitate ATPazicK3 );)>5>. =,52

    VU !:A)( :-;()*(K:>)(I 4#. BB* I .oncentraie intermediar de mioglobin

    *2:5,)->5 :6+).)*e contract rapid, obosesc greu D :5+-;)16>: )A6=A( I 4#. BB; I

    mi)=1);6*a, puine mitocondrii

    :5+-;)16>: =16.)16+6.

    >e contract rapid , obosesc uor Jactivitate ATPazic K%*

    !!"!#"#$!%

  • 7/25/2019 Tesut Muscular 1 2014

    61/72

    %)

    !"1"3 #6"04E&"1$"320!!"!#"#$!%

  • 7/25/2019 Tesut Muscular 1 2014

    62/72

    85.54+), 5*E),6-1 4,6*+,5 @6;,515

    :2>.21-,5detecteaz modificrile n lungime

    $>

  • 7/25/2019 Tesut Muscular 1 2014

    63/72

    '(-K+-

    !I? -(I)+E

    *I?FI=>)

    #()J O()(-;( )(

    Terminaii anuloE?=(

    !C -JC >O()(-;( ?(FI-K>)(

    Terminaii n bucheel

    !C -JC (O()(-;( >=O>

    Plci motorii

    !C -JC (O()(-;( ,>*>

    %#

    4?

    Muchi scheletic

  • 7/25/2019 Tesut Muscular 1 2014

    64/72

    %:

  • 7/25/2019 Tesut Muscular 1 2014

    65/72

    E1"'"3 &"1$"320 1'0.2' 1$7636'.$

    L* esut supus stresului mecanic continuu

    Efortul fizic susinut D (*+K(=>)(

    %@),+21 @6E6. 6*+5*>15E62*6 @).-15 D ()>)(

    ',-2:-+6>:*5.,)z (,(-()>)(

    H*G* 8& 8#+4"-$&"&*5.,)z C5:-+): D 6*@12A

  • 7/25/2019 Tesut Muscular 1 2014

    66/72

    1'0.2' 1$7636'.$

    N2.1566 .512156 -5 4)+

  • 7/25/2019 Tesut Muscular 1 2014

    67/72

    CELULA SATELIT MUSCULAR

    Celul nedifereniat

    Inclus n lamina bazal a fibrei musculare

    N2 >5 4)-+5 +)1)=6.5 .1->6.5

    Celul fusiform, mononucleat

    nucleu: citoplasm > 1 coninut sczut de organite

    *2.1521 5>+5 :-6 :6. >6 :-6 C5+5,).,):-+6.

    .):4-,-+60 .2 .51 -1 @6;,56 :2>.21-,5F

    Activat de traumatisme, leziuni, efort progresiv.

    Prolifereaz i fuzioneaz reparnd sau nlocuindfibra muscular

    %&

    !!"!#"#$!%

  • 7/25/2019 Tesut Muscular 1 2014

    68/72

    %'

    !!"!#"#$!%

  • 7/25/2019 Tesut Muscular 1 2014

    69/72

    %(

  • 7/25/2019 Tesut Muscular 1 2014

    70/72

    &*

  • 7/25/2019 Tesut Muscular 1 2014

    71/72

    &)

    F;*?(/52 2)6.-,/( :-33)6),2-/2-*,

    1I)?( K( )(,(-()>)( > O:A)(: *I?FI=>)(

    !!"!#"#$!%

  • 7/25/2019 Tesut Muscular 1 2014

    72/72

    1I)?( K( )(,(-()>)( > O:A)(: *I?FI=>)(

    #51215 ,5E6-+516+ :2>.21-,5

    .51215 4,)=5*6+)-,5

    :ioblati interstiiali3 >6 JM(#>K

    #51215 >+5: +5:21 :'2+0;"/(71", .elule provenite din mduva hematogen, celule

    45,60->.21-,53 :5>)-*=6);1-ti3 .51215 :6)5*