Respiratory Essay

992 words - 4 pages

` Medicina Generala, An 4,Seria 2, Grupa 10
Proiect de lectie


Data: 29.04.2014
Disciplina: Biologie
Clasa: a -XI-a
Durata de desfăşurare a lecţiei: 50 minute
Lectia: Aparatul respirator
Tipul lectiei :Lectie de acumulare a cunostintelor
Obiectivul central al lecţiei: obtinerea conceptelor legate de respiratie
Obiective operationale: pe parcursul si la sfarsitul lectiei, elevii vor fi capabili sa:
O1- identificarea alcatuirii si functiilor organelor si sistemelor
O2 – sa enumere componentele sistemului respirator
O3 – sa descrie componentele sistemului respirator
O4 –sa precizeze alcatuirea plamanilor si ...view middle of the document...

| Observarea pe baza planselor a componentelor sistemului respirator. | ObservatiaConversatiaProblematizarea | Manuale scolarePlanseAtlase anatomice | 2 min.3 min.5 min. | Fisa de evaluare |
Laringele este un organ cu dubla functie: respiratorie, dar si fonatorie, prin corzile vocale. Traheea este un organ sub forma de tub care continua laringele si are o lungime de 10-12 cm. | Observarea imaginilor din atlasele anatomice. | ObservatiaConversatia Explicatia | Atlase anatomiceManuale scolareManechin reprezentativ al corpului uman | 4 min. | Fisa de evaluare |
Plamanii sunt situati in cavitatea toracica avand o capacitate totala de 500 ml de aer, cu variatii individuale. Arborele bronsic. Bronhia principala se imparte in bronhii, iar acestea la randul lor se impart in bronhiole. Bronhiolele respiratorii, impreuna cu formatiunile derivate din ele (ducte alveolare, saculeti alveolari, alveole pulmonare) formeaza acinii pulmonari. | Examinarea atat a imaginilor cat si a filmarilor tip powerpoint. | Conversatia euristicaObservatiaExplicatia | AtlaseManualeVideoproiectorPlanse sau miniplanse | 5 min. | Fisa de evaluare |
Ventilatia pulmonara.Circulatia alternativa a aerului se realizeaza ca urmare a variatiilor ciclice ale volumului cutiei toracice.Mecanica ventilatiei pulmonare: dimensiunile plamanilor pot varia prin distensie si retractie in doua moduri: 1-prin miscarile de ridicare si coborare ale diafragmului care alungesc si scurteaza cutia toracica si 2- prin ridicarea si coborarea coastelor care determina cresterea si descresterea diametrului antero-posterior al cavitatii toracice.Presiunea pleurala este presiunea din spatial cuprins intre pleura viscerala si cea parietala.Presiunea alveolara este presiunea din interiorul alveolelor pulmonare. | Examinarea imaginilor din atlasele anatomice. | Conversatia euristicaObservatiaExplicatia | AtlaseManualeVideoproiectorPlanse sau miniplanse | 10 min. | |


Aparatul respirator si respiratia

Alcatuire-cai respiratorii-fose nazale
-faringe-cale comuna pentru aer si alimente
-bronhii-se ramifica in plamani formand arborele bronsic
-plamani-organ pereche situat in cutia toracica
-au aspect buretos,bogati in vase de sange,acoperiti la exterior de o membrana dubla subtire,numita pleura
-plamanul drept este brazdat de doua santuri ,delimitand trei lobi
-plamanul stang este brazdat de un singur sant delimitand doi lobi
-in interior plamanii sunt alcatuiti din saculeti numiti saci alveolari care au aspectul unor ciorchini de strugure in care fiecare „bobita” reprezinta o alveola...

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