Pratique du Shadowing: How Does Dialysis Work? | Kidneys & Blood Cleaning Explained | Dr. Binocs Show - Apprendre l'anglais à l'oral avec la vidéo
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60 phrases
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Eww!
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The water's dirty!
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Oh dear!
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Looks like our filters tired, Kitty!
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Filtering isn't easy, you know!
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Even our kidneys can get worn out!
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Really?
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What happens then?
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The humans need a little artificial help.
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Let me show you by answering how dialysis works.
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Zoom in!
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Every day, your two bean -shaped organs called kidneys quietly pull off one of the most amazing jobs in your body.
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They clean your blood.
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They remove waste like urea, valence, electrolytes such as sodium and potassium and regulate fluid levels,
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blood pressure and even red blood cell production.
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The purified blood then returns to circulation while the waste is excreted from the body as urine.
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But sometimes, due to conditions such as diabetes, long -term high blood pressure,
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severe infections or certain genetic disorders,
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the kidneys may lose their ability to function properly this loss of function is known as kidney failure
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or renal failure when this happens toxins fluids
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and salts begin to build up in the body leading to fatigue nausea swelling
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and further increases in blood pressure if left untreated these imbalances can damage the heart,
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lungs and other vital organs.
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That's where dialysis comes in.
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An artificial way to take over the kidneys cleansing job of removing waste and extra fluid from the blood.
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But then how does it work?
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Well there are two main types of dialysis.
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Hemodialysis and peritoneal dialysis.
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Each using a different method but based on the same scientific principles of diffusion and osmosis
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The movement of particles and water across a semi -permeable membrane
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In hemodialysis, blood is cleansed outside the body using a machine called a dialyzer
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Often referred to as an artificial kidney
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To prepare for treatment, a small surgical procedure creates a vascular access such as an arteriovenous AV fistula,
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a direct connection between an artery and a vein or a graft, which is a soft plastic tube connecting the two.
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During each dialysis session, two needles are inserted into this access point.
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Blood flows out of the body through one needle and travels through tiny hollow fibres inside the dialyser.
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As it moves along, waste molecules like urea
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and excess potassium pass through the fibre walls into a special cleansing fluid called dialysate,
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while essential components remain in the bloodstream.
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The cleaned blood then returns to the body through the second needle and into the veins.
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This process usually takes about four hours and is performed three times a week.
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Peritoneal dialysis, on the other hand, turns the body into its own filter.
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A soft tube called a catheter is surgically placed into the patient's abdomen.
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The peritoneum, the thin membrane lining the abdominal cavity,
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acts as the natural semi -permeable filter.
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Dylacate fluid is infused into the cavity where it absorbs wastes and excess water from the surrounding blood vessels.
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After several hours, the used fluid now containing toxins is drained into a collection bag
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this process called an exchange can be done manually several times a day
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or automatically overnight with the machine
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while dialysis can't cure kidney disease it provides a remarkable bridge keeping people alive
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and healthy enough to await a transplant or continue living and act manageable life.
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Trivia time!
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Did you know each kidney is roughly the size of a closed fist and weighs just under 0 .4 kilograms?
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Also, each kidney contains approximately 1 million microscopic filtering units called nephrons.
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Sketching time!
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Today's sketch of the day goes to scarlet harris hope
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you learned something critical today until next time
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it's me dr binocs zooming out kitty why
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or not did you bring a dialysis machine to replace the ordinary water filter
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Oh, Kitty, never mind.
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Vocabulaire et conseils d’expression pour cette leçon
Cette leçon d’expression orale s’appuie sur la vidéo « How Does Dialysis Work? ». Les mots qui reviennent le plus souvent : blood, kidney, dialysis, fluid, waste. Cette vidéo contient 60 phrases et 610 mots à répéter en shadowing. La partie parlée dure 5:52. Le locuteur parle lentement, environ 104 mots par minute, ce qui laisse le temps d’imiter chaque son. Seuls 70 % des mots font partie des 3 000 mots les plus courants en anglais, le vocabulaire est donc exigeant.
Vocabulaire clé de cette vidéo
15 mots de la vidéo à retenir, avec leur prononciation et leur sens :
| Mot | Prononciation | Sens |
|---|---|---|
| kidney nom | /ˈkɪdni/ | rein |
| filter nom | /ˈfɪltɚ/ | filtre |
| fluid nom | /ˈflu.ɪd/ | fluide, liquide |
| artificial adjectif | /ˌɑː.tɪˈfɪʃ.əl/ | artificiel |
| kitty nom | /ˈkɪti/ | chaton, minet |
| needle nom | /ˈniː.dəl/ | aiguille |
| tube nom | /tuːb/ | tube |
| excess nom | /ˈɛksɛs/ | excès |
| organ nom | /ˈɔːɡən/ | organe |
| sketch nom | /ˈskɛt͡ʃ/ | esquisse |
| membrane nom | /ˈmɛm.bɹeɪn/ | membrane |
| vein nom | /veɪn/ | veine |
| fibre nom | /ˈfaɪ.bə(ɹ)/ | fibre |
| cavity nom | /ˈkæv.ɪt.i/ | carie |
| potassium nom | /pəˈtæsiəm/ | potassium |
Les verbes à particule que vous entendrez
| Mot | Prononciation | Sens |
|---|---|---|
| pass through verbe | traverser | |
| pull off verbe | sortir, retirer | |
| take over verbe | reprendre | |
| wear out verbe | user | |
| zoom out verbe | /ˌzuːm ˈaʊt/ | dézoomer |
Prononciation à surveiller
- Les sons « th »: thin /ˈθɪn/, catheter /ˈkæθɪtɚ/
- Les sons « sh » et « zh »: artificial /ˌɑː.tɪˈfɪʃ.əl/, infection /ɪnˈfɛkʃən/, circulation /ˌsɝkjʊˈleɪʃən/, diffusion /dɪˈfju.ʒən/
- Mots longs — placez bien l’accent: artificial /ˌɑː.tɪˈfɪʃ.əl/, ordinary /ˈɔɹdɪnɛɹi/, circulation /ˌsɝkjʊˈleɪʃən/, manually /ˈmænj(u)əliː/, dialysis /daɪˈælɪsɪs/
Les sons difficiles pour les francophones :
- /h/ — il se souffle, il n’est pas muet: hollow /ˈhɑloʊ/, hemodialysis /ˌhi.moʊ.daɪˈæ.lɪ.sɪs/
- /tʃ/ et /dʒ/ — à ne pas adoucir en « ch » et « j »: sketch /ˈskɛt͡ʃ/, procedure /pɹəˈsiː.d͡ʒə/, genetic /d͡ʒəˈnɛt.ɪk/, surgical /ˈsɝd͡ʒɪkəl/, manageable /ˈmænəd͡ʒəb(ə)l/
- /r/ anglais — langue recourbée, sans frotter la gorge: membrane /ˈmɛm.bɹeɪn/, fibre /ˈfaɪ.bə(ɹ)/, refer /ɹɪˈfɜː/, procedure /pɹəˈsiː.d͡ʒə/, ordinary /ˈɔɹdɪnɛɹi/
Comment s’entraîner avec cette vidéo
- Écoutez la vidéo en entier une fois sans parler et notez les mots que vous ne connaissez pas.
- Répétez phrase par phrase à vitesse normale, en reprenant chacune jusqu’à ce que votre rythme corresponde à celui du locuteur.
- Enregistrez-vous et comparez avec l’original, en faisant attention à des mots comme kidney, filter, fluid.
Qu'est-ce que la technique du Shadowing ?
Le Shadowing est une technique d'apprentissage des langues fondée sur la science, développée à l'origine pour la formation des interprètes professionnels. Le principe est simple mais puissant : vous écoutez de l'anglais natif et le répétez immédiatement à voix haute — comme une ombre suivant le locuteur avec un décalage de 1 à 2 secondes. Les recherches montrent une amélioration significative de la précision de la prononciation, de l'intonation, du rythme, des liaisons, de la compréhension orale et de la fluidité.