El Sistema Circulatori Dels Vertebrats - Ub

El Sistema Circulatori Dels Vertebrats - Ub

ZOOID GRUP DINNOVACI DOCENT EN ZOOLOGIA Dept. de Biologia Animal. Facultat de Biologia. Avgda. Diagonal 645. 08028-Barcelona EL SISTEMA CIRCULATORI DELS VERTEBRATS Anatomia comparada del cor i dels arcs artics C. Sanpera, G. Llorente & X. Ruiz EL SISTEMA CIRCULATORI DELS VERTEBRATS Anatomia comparada del cor i dels arcs artics

C. Sanpera, G. Llorente & X. Ruiz SISTEMA CIRCULATORI DELS VERTEBRATS : FUNCIONS TRANSPORT GASOS NUTRIENTS RESDUS HORMONES CALOR HOMESTASI CANVIS PRESSI EQUILIBRI HDRIC REGULACI TRMICA DEFENSA

CELLULAR NO CELLULAR C. Sanpera, G. Llorente & X. Ruiz SISTEMA CIRCULATORI DELS VERTEBRATS : VASOS ARTERIES: Transport de sang des del cor VENES: Transport de sang cap al cor CAPILARS: Intercanvi sang - teixits C. Sanpera, G. Llorente & X. Ruiz SISTEMA CIRCULATORI DELS VERTEBRATS: CIRCULACI SENZILLA. CIRCULACI DOBLE La sang segueix un sol circuit dins el cos. El cor s una bomba nica

La sang fa un circuit doble dins el cos. El cor est dividit en 2 bombes que alimenten 2 circuits (respiratori i sistmic) C. Sanpera, G. Llorente & X. Ruiz ANATOMIA DEL COR DELS VERTEBRATS CANVIS MORFOFUNCIONALS C. Sanpera, G. Llorente & X. Ruiz CONDRICTIS I OSTECTIS CONDRICTI Cor: 1 sola bomba amb 4 cambres disposades seqencialment (sinus vens, atri,

ventricle, conus/bulbus arteriosus) Sistema respiratori: brnquies Arcs artics: 5 en condrictis; 4 en osteictis OSTEICTI C. Sanpera, G. Llorente & X. Ruiz MODEL I: OSTEICTI s. vens atri a. artics vena cardinal

ventricle bulbus arteriosus aorta ventral vena heptica Cor dun osteicti en norma dorsal Cor dun osteicti en norma lateral C. Sanpera, G. Llorente & X. Ruiz PEIXOS PULMONATS shunts musculars Cor: Parcialment dividit amb 4 cambres

disposades seqencialment (sinus vens, atri, ventricle, b. arteriosus) Sistema respiratori: brnquies i/o pulmons Arcs artics: 5. aa II, V, VI: amb brnquies aa III i IV: sense brnquies Respiraci branquial: shunts tancats Cor parcialment tabicat C. Sanpera, G. Llorente & X. Ruiz Respiraci pulmonar: shunts oberts AMFIBIS Anatomia del cor

Flux de sang oxigenada i no-oxigenada Circulaci doble. Cor tricameral: 2 atris i 1 ventricle. Sinus venos sobre a latri dret. Sistema respiratori: brnquies (larva), pulmons (adult), pell. Arcs artics:3. aa III: arc cartid aa IV: arc sistmic aa VI: arc pulmo-cutni C. Sanpera, G. Llorente & X. Ruiz MODEL II: AMFIBIS (Rana) a. cartid truncus arteriosus

a. pulmo-cutni a. sistmic atri esquerre atri dret Model de cor de granota (ventral) Vlvula espiral Sinus venos Ventricle (trabcules) Model de cor de granota (dorsal) C. Sanpera, G. Llorente & X. Ruiz

AMFIBIS: arcs artics LARVA URODEL Canvis durant la metamorfosi: Reabsorci de les brnquies Reabsorci del ductus carotidus En Anurs: Reabsorci del aa V i del ductus arteriosus a. pulmo-cut URODEL ADULT a. sistmic a. cartid ANUR ADULT C. Sanpera, G. Llorente & X. Ruiz

ANPSIDS (QUELONIS) I DIPSIDS (LEPIDOSAURIS) Cor tricameral: 2 atris i 1 ventricle Ventricle amb septe interatrial (parcialment dividit) que delimita tres cavitats funcionals: cavum arteriosum, cavum venosum i cavum pulmonale C. Sanpera, G. Llorente & X. Ruiz MODEL III: QUELONI a. sistmic E a. pulmonar a. Sistmic D

a. cartids a. Sistmic E a. Pulmonar Cavum arteriosum Atri esquerre Cavum venosum Septe interventr Atri dret ventricle Cavum pulmonale

C. Sanpera, G. Llorente & X. Ruiz ANPSIDS I DIPSIDS (LEPIDOSAURIS): arcs artics i circulaci Sinus venosus Vena pulmonar A.D. A.I. Cavum venosum

Cavum arteriosum Cavum pulmonale Cavum venosum Arteria pulmonar Arco Sist I Arco Sist D APNEA

C. Sanpera, G. Llorente & X. Ruiz MODEL IV: COCODRIL A. sistmic D A. cartids A. sistmic E A. pulmonar V. pulmonar Cor de cocodril en norma ventral Cor de cocodril en norma dorsal C. Sanpera, G. Llorente & X. Ruiz DIPSIDS (ARCOSAURIS): O. Crocodilia

Cor tetracameral: 2 atris + 2 ventricles Els arcs sistmics dret i esquerra queden comunicats a travs del Foramen de Pannizza A. cartids A. Sistmic E A. Sistmic D A. pulmonar Foramen de Pannizza VD VE VE C. Sanpera, G. Llorente & X. Ruiz DIPSIDS (ARCOSAURIS): arcs artics i circulaci

Sinus venosus Vena pulmonar A.D. A.E. Ventricle D Ventricle E Apnea Arteria pulmonar

Arco Sist Arco Sist D E Resp. aria Foramen Pannizza Resp. Aria Apnea C. Sanpera, G. Llorente & X. Ruiz OCELLS Arcs cartids

Arc sistmic (crossa D) Arc pulmonar Cor tetracameral: 2 atris + 2 ventricles VD VE VE VD Conserven la crossa artica dreta.

C. Sanpera, G. Llorente & X. Ruiz OCELLS A. cartids A. sistmic (crossa D) A. pulmonar V. pulmonar V. cava C. Sanpera, G. Llorente & X. Ruiz MAMFERS Cor tetracameral: 2 atris + 2 ventricles

Conserven la crossa artica esquerra. C. Sanpera, G. Llorente & X. Ruiz MAMFERS A. cartids A. sistmic (crossa E) A. pulmonar V. pulmonar V. cava C. Sanpera, G. Llorente & X. Ruiz Vols saber ms? Links:

http://www.emc.maricopa.edu/faculty/farabee/BIOBK/ BioBookcircSYS.html#Vertebrate Cardiovascular Syste Descripci sobre sistemes circulatoris de vertebrats circulaci senzilla i doble, amb esquemes. Estudi del cor i la circulaci en els mamfers. http://sln.fi.edu/biosci/systems/circulation.html. Sistema circulatori en humans. Bones imatges. http://www.biology.eku.edu/RITCHISO/342notes9.html Anatomia comparada del cor i els arcs artics dels vertebrats, amb una animaci de la circulaci en el cor dels cocodrils http://campus.murraystate.edu/academic/faculty/terry.derting/anatomyat las/Index.htm Atles danatomia amb imatges de circulatori de peixos i amfibis. C. Sanpera, G. Llorente & X. Ruiz

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