쉐도잉 연습: Blood Flow Through the Heart (Made Easy in 5 Minutes!) - 영상으로 영어 말하기 배우기
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Alright you guys, welcome back to another video lesson.
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My name is Eddie Watson and this is ICU Advantage, where the confidence to succeed begins here, making critical care topics easy to understand.
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Now, if you don't want to miss out on any future critical care lessons that I do, make sure and subscribe to the channel down below.
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Make sure you hit that bell icon though and select all notifications so you never miss out on a new lesson.
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Alright, let's begin.
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In this lesson, let's take a quick look at the flow of blood through the heart.
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And the heart is really the powerhouse of the circulatory system.
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It's continuously moving blood throughout the entire body, providing oxygenated blood and nutrients,
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while also carrying away waste and returning that deoxygenated blood back to the lungs.
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the flow of blood through the cardiac system is vital to being able to understand the problems
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and conditions that can come up along the way at various points.
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We do though need to start off with some basic foundations before we begin.
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So when I'm talking about veins, I'm talking about blood vessels that are carrying blood towards the heart, and then arteries are then blood vessels carrying blood away from the heart.
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And then for the sake of our drawing, blue is going to be used to signify deoxygenated blood and red is going to be our oxygenated blood.
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So with that out of the way, let's go ahead and take a look inside the heart so we can see some of the structures here.
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There are four main chambers, two upper chambers called atria and two lower chambers called ventricles.
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And we have one of each on each side of the heart.
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We have the right atrium, the right ventricle, the left atrium, and the left ventricle.
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And the atria help to fully load the ventricle before it then ejects blood away from the heart.
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The heart can also be divided up into the right and left sides.
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The right side is going to be responsible for deoxygenated blood going right to the lungs, and then the left side is responsible for oxygenated blood that has just left the lungs.
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There's also four heart valves that you need to know, one at the exit of each of the four chambers.
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Exiting from the right atrium, we have the tricuspid valve.
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Then exiting from the right ventricle, we have the pulmonic valve.
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And then exiting the left atrium, we have the mitral valve.
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This is something that also is known as the bicuspid valve.
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And then finally exiting the left ventricle, we have the aortic valve.
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Each of these valves act as a one-way valve to prevent backflow of blood in the system.
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And normal valves have three leaflets, with the exception of the mitral valve, which only has two, hence the name bicuspid.
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And then finally there are the blood vessels, which bring blood to, as well as carry blood away from the heart.
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The inferior vena cava, which has blood originating from the trunk, visceral organs, and the lower body.
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And the superior vena cava, which has blood originating from the head and upper body.
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Which these two together bring most of the deoxygenated blood from the body back to the heart
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and empty into the right atrium.
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Next, we have the pulmonary artery, which is going to carry the deoxygenated blood away from the heart and then to the lungs to be oxygenated.
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From here, we have both the right and left pulmonary veins, which are bringing the oxygenated blood back to the heart and emptying into the left atrium.
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And then finally, the aortic carries the oxygenated blood away from the heart to the rest of the body.
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Alright, now that we've covered the structures, let's actually see how the blood flows through the system.
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We start with the deoxygenated blood returning to the heart via the inferior vena cava and the superior vena cava.
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This blood empties into the right atrium.
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The right atrium then contracts the blood through the tricuspid valve into the right ventricle.
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The right ventricle then contracts, ejecting the blood through the pulmonic valve into the pulmonary artery.
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Now remember this is an artery because the blood is going away from the heart, but it's also blue here because this is still deoxygenated blood.
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The pulmonary artery branches and carries blood to the left and the right lungs to receive oxygen and release carbon dioxide.
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After the blood leaves the lungs, the oxygenated blood is going to return to the heart via the pulmonary veins.
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Again, remember that these are veins because they're carrying blood towards the heart, but they're red here because this is now oxygenated blood.
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The pulmonary veins empty the blood into the left atrium.
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The left atrium contracts the blood through the mitral valve into the left ventricle.
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The left ventricle then contracts, ejecting that blood through the aortic valve, into the aorta, and onto the rest of the body.
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So one more time let's just talk through that again.
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We start with the deoxygenated blood returning to the heart via the inferior vena cava and the superior vena cava.
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This blood empties into the right atrium.
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The right atrium then contracts the blood through the tricuspid valve into the right ventricle.
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The right ventricle then contracts ejecting that blood through the pulmonic valve into the pulmonary artery.
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The blood then travels to the lungs and then returns back from the lungs via the pulmonary veins, which then empty into the left atrium.
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The left atrium contracts that blood through the mitral valve into the left ventricle.
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The left ventricle then contracts, ejecting that blood through the aortic valve to the aorta and onto the rest of the body.
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And remembering the order of the heart valves can be difficult.
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The mnemonic TPMA can help.
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Toilet, paper, my asset tricuspid pulmonic mitral aortic.
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Alright that's all I got that's the blood flow through the heart.
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If you guys like this lesson please leave a comment
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or a like down below really goes a long way to help support this channel as well as
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if you know somebody else who might find this useful make sure and share it with them as well.
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If you haven't already subscribe to the channel down below
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and a special shout out to our awesome Patreon and YouTube members that are out there.
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By showing your support for this channel you guys get additional content
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that you can't get from just the normal YouTube channel here alone.
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Make sure you guys stay tuned for the next lesson that I'm going to release.
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In the meantime, check out a couple really awesome videos I'm going to link to right here.
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As always, thank you guys so much for watching.
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Have a great day.
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이 레슨의 어휘와 말하기 포인트
이 C1 수준 말하기 레슨은 영상 “Blood Flow Through the Heart”을(를) 바탕으로 합니다. 가장 자주 반복되는 단어는 다음과 같습니다: blood, valve, atrium, ventricle, deoxygenated. 이 영상에는 섀도잉할 문장 72개와 단어 1150개가 있습니다. 말하는 구간의 길이는 6:03입니다. 화자는 분당 약 190단어로 빠르게 말하므로 연음과 약하게 발음되는 소리가 많습니다. 영어에서 가장 많이 쓰이는 3,000단어에 속하는 단어가 80%뿐이라 어휘가 어려운 편입니다.
이 영상의 핵심 어휘
영상에서 가장 어려운 단어 15개를 발음, 뜻과 함께 정리했습니다.
| 단어 | 발음 | 뜻 |
|---|---|---|
| atrium 명사 | /ˈeɪ.tɹi.əm/ | 아트리움 |
| ventricle 명사 | /ˈvɛn.tɹɪk.əl/ | 심실 |
| pulmonary 형용사 | /ˈpʌl.məˌnɛ.ɹi/ | 폐의 |
| artery 명사 | /ˈɑɹ.təɹ.i/ | 동맥 |
| vein 명사 | /veɪn/ | 정맥 |
| aorta 명사 | /eɪˈɔɹtə/ | 대동맥 |
| originate 동사 | /əˈɹɪd͡ʒɪneɪt/ | 기원하다 |
| subscribe 동사 | /səbˈskɹaɪb/ | 구독하다 |
| leaflet 명사 | /ˈliːflɪt/ | 전단지, 전단 |
| mnemonic 명사 | /nəˈmɑnɪk/ | 기억술 |
| nutrient 명사 | /ˈnuː.tɹi.ənt/ | 영양소 |
| dioxide 명사 | /daɪˈɑksaɪd/ | 이산화물 |
| notification 명사 | /ˌnoʊtɪfɪˈkeɪʃn̩/ | 통지 |
| continuously 부사 | /kənˈtɪnjuəsli/ | 계속, 연달아 |
| trunk 명사 | /tɹʌŋk/ | 그루 |
영상에 나오는 구동사
| 단어 | 뜻 |
|---|---|
| come up 동사 | 올라오다 |
이 영상의 문법
화자가 가장 많이 쓰는 문형을 영상 속 실제 표현과 함께 정리했습니다.
| 문형 | 영상 속 표현 |
|---|---|
| 수동태 be + 과거분사 — 누가 하는지보다 무슨 일이 일어나는지에 초점 | be divided · is known · be oxygenated |
| 관계절 who / which + 절 — 사람이나 사물에 대한 추가 정보 | cava, which has · artery, which is · veins, which are |
| 현재완료 have/has + 과거분사 — 과거의 일이 지금도 관련이 있을 때 | has just left · we've covered |
주의할 발음
화자는 I'm, they're, can't 같은 축약형과 약화된 형태를 10번 사용합니다. 들리는 대로 짧게 발음하세요.
- “sh”와 “zh” 소리: notification /ˌnoʊtɪfɪˈkeɪʃn̩/, shout /ʃaʊt/
- 긴 단어 — 강세 위치에 주의: deoxygenate /diˈɒksɪdʒɪneɪt/, oxygenate /ˈɒksɪdʒəneɪt/, pulmonary /ˈpʌl.məˌnɛ.ɹi/, inferior /ɪnˈfɪɹ.i.ɚ/, originate /əˈɹɪd͡ʒɪneɪt/
한국어 화자가 어려워하는 소리:
- /f/ — ㅍ(/p/)으로 바꾸지 말고 윗니를 아랫입술에 대기: inferior /ɪnˈfɪɹ.i.ɚ/, leaflet /ˈliːflɪt/, signify /ˈsɪɡnɪfaɪ/, notification /ˌnoʊtɪfɪˈkeɪʃn̩/
- /v/ — ㅂ(/b/)과 구별하기: ventricle /ˈvɛn.tɹɪk.əl/, vein /veɪn/, visceral /ˈvɪsəɹəl/
- /r/과 /l/ 구별하기: ventricle /ˈvɛn.tɹɪk.əl/, pulmonary /ˈpʌl.məˌnɛ.ɹi/, mitral /ˈmaɪtɹəl/, circulatory /ˈsɝkjələˌtɔɹi/, visceral /ˈvɪsəɹəl/
이 영상으로 연습하는 방법
- 먼저 말하지 않고 영상을 끝까지 듣고 모르는 단어를 적어 둡니다.
- 0.75배속으로 한 문장씩 섀도잉을 시작하고, 익숙해지면 보통 속도로 돌아갑니다.
- 자신의 목소리를 녹음해 원본과 비교하고, atrium, ventricle, pulmonary 같은 단어에 특히 주의합니다.
쉐도잉이란? 영어 실력을 빠르게 키우는 과학적 방법
쉐도잉(Shadowing)은 원래 전문 통역사 훈련을 위해 개발된 언어 학습 기법으로, 다언어 학자인 Dr. Alexander Arguelles에 의해 대중화된 방법입니다. 핵심 원리는 간단하지만 매우 강력합니다: 원어민의 영어를 들으면서 1~2초의 짧은 지연으로 즉시 소리 내어 따라 말하는 것——마치 '그림자(shadow)'처럼 화자를 따라가는 것입니다. 문법 공부나 수동적인 청취와 달리, 쉐도잉은 뇌와 입 근육이 동시에 실시간으로 영어를 처리하고 재현하도록 훈련합니다. 연구에 따르면 이 방법은 발음 정확도, 억양, 리듬, 연음, 청취력, 말하기 유창성을 크게 향상시킵니다. IELTS 스피킹 준비와 자연스러운 영어 소통을 원하는 분들에게 특히 효과적입니다.