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L’INTESTÍ I
L’ESTÓMAC


19/01/11   PRÀCTICA Nº8   ARNAU GONZALEZ I JOAN ROIG
Introducció
                                                                                             IN T E ST Í P R IM
El dia 19 de gener vam diseccionar un
estómac i un intestí per poder-hi veure les
seves característiques i per veure com                                                  L’INTESTÍ PRIM, ÉS UN DELS
són.                                                                                    ÒRGANS MES LLARG DEL COS
                                                                                        HUMÀ. PERQUÈ ES MANTINGUI
                                                                                        COMPACTE ESTA RECOBERT DE
PRÀCTICA Nº 8: DISSECCIÓ                                                                TEIXIT CONJUNTIU.
D’UN ESTÓMAC I D’UN
                                                                                        EN AQUESTA FOTOGRAFIA ES POT
INTESTÍ PRIM.
                                                                                        V E U R E L’ I N T E S T Í P R I M D E L
                                                                                        TEIXIT CONJUNTIU.
Per fer la pràctica vam utilitzar: tisores,
portaobjectes, safata, guants de latex,
l’estómac i l’intestí prim.

El primer que vam fer va ser posar-nos els
guants i la bata. Un cop ja estabem vam
observar l’estómac i l’entestí prim. Vam
poder veure-hi les seves parts. Vam veure
que l’estómac era més rugós que l’intestí
prim. També vam poder veure el teixit
                                                          ORIFICI
conjuntiu que tenia l’intestí prim. Gràcies a
ell podia mantenir-se junt.
                                                AQUEST ÉS EL PETIT ORFICI QUE
De l’estómac vam poder observar l’orifici
                                                C O MU N I C A L’ E S T Ó M A C A M B
que comunicava amb l’intestí prim. El quim
                                                L’INTESTÍ PRIM. UN COP EL QUIM
un cop ja ha estat digerit suficient a           JA HA ESTAT DIGERIT SORTIRÀ
l’estómac surt per l’orifici i va a parar a      D E L’ E S T Ó M A C P E R A QU E S T
l’intestí prim. Aquest s’anomena quil. Vam      ORIFICI. LLAVORS EL QUIM
tallar un tros de l’estómac. Vam posar-lo       PASSARÀ A DIR-SE QUIL.
en un portaobjectes i el vam observar en
la lupa binocular. Podiem veure les
diferents capes que tenia i les seves
vellossitats intestinals.
De l’intestí prim vam poder observar que
si treiem el teixit conjuntiu l’intestí prim
podia arribar a medir fins a 2 metres
d’allargada. Vam comparar le textura dels
dos òrgans i la de l’intestí prim era molt
més llisa i relliscosa.                                                                         V E L L O S I TAT
                                                                                                IN T E S TINA L

                                                                                          EN AQUESTA FOTOGRAFIA ES POT
                                                                                          VEURE LES DIFERENTS CAPES DE
                                                                                          L’ E S T Ó M A C. L A V E L LO S I TAT
                                                                                          INTESTINAL SÓN UN UN CONJUNT
                                                                                          DE PÈLS PETITS, QUE AJUDEN A
                                                                                          IMPULSAR LA FEMTA.

                                                                                          (TROS D’ESTÓMAC VIST D’ES DE
                                                                                          UNA LUPA VINOCULAR)
Pràctica 8  dissecció de l'estómac i l'intestí

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Pràctica 8 dissecció de l'estómac i l'intestí

  • 1. L’INTESTÍ I L’ESTÓMAC 19/01/11 PRÀCTICA Nº8 ARNAU GONZALEZ I JOAN ROIG
  • 2. Introducció IN T E ST Í P R IM El dia 19 de gener vam diseccionar un estómac i un intestí per poder-hi veure les seves característiques i per veure com L’INTESTÍ PRIM, ÉS UN DELS són. ÒRGANS MES LLARG DEL COS HUMÀ. PERQUÈ ES MANTINGUI COMPACTE ESTA RECOBERT DE PRÀCTICA Nº 8: DISSECCIÓ TEIXIT CONJUNTIU. D’UN ESTÓMAC I D’UN EN AQUESTA FOTOGRAFIA ES POT INTESTÍ PRIM. V E U R E L’ I N T E S T Í P R I M D E L TEIXIT CONJUNTIU. Per fer la pràctica vam utilitzar: tisores, portaobjectes, safata, guants de latex, l’estómac i l’intestí prim. El primer que vam fer va ser posar-nos els guants i la bata. Un cop ja estabem vam observar l’estómac i l’entestí prim. Vam poder veure-hi les seves parts. Vam veure que l’estómac era més rugós que l’intestí prim. També vam poder veure el teixit ORIFICI conjuntiu que tenia l’intestí prim. Gràcies a ell podia mantenir-se junt. AQUEST ÉS EL PETIT ORFICI QUE De l’estómac vam poder observar l’orifici C O MU N I C A L’ E S T Ó M A C A M B que comunicava amb l’intestí prim. El quim L’INTESTÍ PRIM. UN COP EL QUIM un cop ja ha estat digerit suficient a JA HA ESTAT DIGERIT SORTIRÀ l’estómac surt per l’orifici i va a parar a D E L’ E S T Ó M A C P E R A QU E S T l’intestí prim. Aquest s’anomena quil. Vam ORIFICI. LLAVORS EL QUIM tallar un tros de l’estómac. Vam posar-lo PASSARÀ A DIR-SE QUIL. en un portaobjectes i el vam observar en la lupa binocular. Podiem veure les diferents capes que tenia i les seves vellossitats intestinals. De l’intestí prim vam poder observar que si treiem el teixit conjuntiu l’intestí prim podia arribar a medir fins a 2 metres d’allargada. Vam comparar le textura dels dos òrgans i la de l’intestí prim era molt més llisa i relliscosa. V E L L O S I TAT IN T E S TINA L EN AQUESTA FOTOGRAFIA ES POT VEURE LES DIFERENTS CAPES DE L’ E S T Ó M A C. L A V E L LO S I TAT INTESTINAL SÓN UN UN CONJUNT DE PÈLS PETITS, QUE AJUDEN A IMPULSAR LA FEMTA. (TROS D’ESTÓMAC VIST D’ES DE UNA LUPA VINOCULAR)