Pratique du Shadowing: Abdominal Muscles & Inguinal Canal - Dissection Supplement - Apprendre l'anglais à l'oral avec la vidéo

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Hello anatomy friends this is Dr. Alsup
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and in this supplementary dissection video we will be discussing some of the muscles particularly associated with the abdominal wall,
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certain structures associated with the inguinal canal, and anything in that surrounding area.
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The inguinal canal is a traditionally difficult area in dissection
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so we will take our time in this region to discuss some of those basics that you need to know.
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But let's start with the abdominal wall first specifically the most superficial of the anterolateral abdominal wall muscles
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which are the external obliques.
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The muscle fibers of the external obliques run in a similar direction as those of the external intercostal muscles between the ribs.
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I always think of kind of putting your hands in your
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front pockets in terms of the directionality of the muscle fibers for the external oblique. And
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if you're looking at a superficial dissection you are looking at the external oblique
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you would have to reflect the external oblique to see the deeper internal oblique and transversus abdominis.
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And as we aren't asking you to identify those
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you should be in pretty good shape there in terms of being able to identify this muscle.
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I also really like this image as it shows how the
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tendons of the oblique muscles really form the rectus sheath
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which is this whole area right here on this particular individual the rectus sheath is quite robust.
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And they're essentially continuous because it is the tendons
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or the flattened tendons called the aponeuroses of the oblique muscles and transversus abdominis that form the rectus sheath.
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The sheath is pretty hard to miss.
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It is the dominant white and kind of variably opaque structure in the anterior portion of the abdominal wall.
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You can see through it a little bit in terms of seeing some of the muscle fibers
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but for the most part it's fairly opaque.
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And running down the midline, you have umbilicus here so you know that you're in the midline,
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is going to be the linea alba which means white line.
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And it's notably more opaque than the rest of the rectus sheath
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and it's the medial most attachment point of those three anterior lateral abdominal muscles on both sides.
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Now let's see what we can see when we reflect a portion of the rectus sheath which has been done here.
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In fact in order to view the rectus abdominis muscle you have to reflect the anterior portion of the rectus sheath,
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which is what's happened in this image on the left side
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the anterior rectus sheath has been left in place on the right side.
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So you can really only see the left rectus abdominis.
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You can see how long the rectus abdominis is.
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It extends from the xiphoid process up here all the way down towards the pubic symphysis, so a very long muscle.
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And you can see the tendinous intersections that are going to be interspersed throughout the muscle here.
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On this particular individual there are three on this side which is the most typical pattern.
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Now I put this second image over here with the rectus abdominis reflected inferiorly in order to point out
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that there is a posterior portion of the rectus sheath which you can see right in this region.
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Remember that the rectus sheath is going to envelop the rectus abdominis. But it's not complete.
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It actually ends about three -fourths of the way down, and what you're left with in this inferior most portion is just transversalis fascia,
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which typically appears a little more transparent than the posterior rectus sheath, and this line of demarcation is called the arcuate line.
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All right let's move to the inguinal canal region, and as I mentioned at the beginning this is a traditionally complex region
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and there are a lot of structures that we're not going to have you identify.
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We're really only picking up on the structures that are on the easier side to identify the more prominent structures.
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Now the inguinal canal extends from the deep inguinal ring, which as the name would suggest is deep and not visible from these more superficial dissections,
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and the superficial inguinal ring which has been opened on this dissection it would be right about here,
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but it is visible on this dissection so right here
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kind of where you have that opening is going to be the superficial inguinal ring.
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This is the exit or medial aperture of the inguinal canal and is formed by the external oblique aponeurosis,
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and you can typically see structures exiting the canal.
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And you can see that in both of these images.
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We will start with this one where you can see the
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round ligament of the uterus exiting the where the superficial ring would be located.
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And the round ligament is sometimes difficult to identify as it presents as a tubular collection of adipose tissue,
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which may be difficult to differentiate from some of the surrounding adipose tissue.
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But one thing that you can see a little bit of here is that there, and I drew already kind of a line through it,
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is going to be a nerve called the ilioinguinal nerve which will run superficial to the round ligament.
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Sometimes that helps with identification, sometimes not so much it's a rather small nerve, but when you when you do see a collection of fat
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or adipose tissue with a nerve running right on top of it you're likely looking at that round ligament.
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The round ligament of the uterus connects the uterus to the labia magus,
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although in some individuals it does not extend all the way to the labia magus into adulthood
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and it's a remnant of the gubernaculum.
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On this individual you can see their spermatic cord exiting the superficial inguinal ring with that ilioinguinal superficial to it.
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And you can see on this side the spermatic cord has
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been dissected to show you the different components of the cord
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and we will discuss both the round ligament of the uterus
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and the spermatic cord in more detail in the reproductive anatomy session.
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Now one last thing I want to discuss here is the inguinal ligament
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and you can't see it well here as recall
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that the inguinal ligament is the floor of the inguinal canal
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and we can still see these more superficial structures of the inguinal canal so it's occluding the view of the inguinal ligament.
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But we can conceptualize where it would be located as it extends from the anterior superior iliac spine
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to about the level of the pubic tubercle around this region.
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and that is going to
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to give you an indication that that inguinal ligament is longer than the inguinal canal as it doesn't actually begin,
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the inguinal canal doesn't actually begin until the deep inguinal ring which is a little bit more right around this region.
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So that inguinal ligament is going to be made up of external oblique apneurosis
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and so it's going to be very similar in terms of composition as what we see right around this region.
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Okay moving to the deep surface of the anterior abdominal wall here
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and you can see peritoneal cavity over here
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you can see some of the the omenta right here a little bit of viscera.
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This all looks a bit a little bit overwhelming I get
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that but there's a lot going on but let's take these things one at a time.
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So here this individual is actually holding the anterior abdominal wall that's been reflected
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and I can see kind of right off the bat one
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of the most prominent things is I see the inferior epigastric vessels.
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So you can see the two paired veins
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and the artery right in between and much of the peritoneum has been removed here
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so this is less the lateral umbilical fold than just the vasculature.
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Now just lateral to this you can see right around this region a collection
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or what looks like a tubular collection of adipose tissue is entering into this region here.
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All right and that's exactly what is happening.
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This is that round ligament of the uterus entering into the deep inguinal ring. And so
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that area where you have the invagination of the transversalis fascia is the deep inguinal ring the entrance
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or internal aperture of the inguinal canal.
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Now the round ligament tends to be a bit more robust around the deep inguinal ring than at the superficial inguinal ring,
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but there is noted variation there.
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Now important to note here in this image the inferior epigastric
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vasculature is going to be medial to the deep inguinal ring
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and that relationship is something that comes up often particularly in discussions of inguinal hernias.
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And lastly here is the trusty diaphragm so this is going to be the left.
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hemidiaphragm and this over here will be the right hemidiaphragm.
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And we discussed the diaphragm in the previous block
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but it's just as important here as a major subdivision between the thoracic and abdominal cavity.
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You can see the liver right underneath here with
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that very close relationship
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and the stomach is just going to be deep to um oops
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I had these mixed up this should be the left and this should be the right.
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Always patient left and patient right see that gets us sometimes even though we think about these things quite often.
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So that makes sense because the liver should be on the right.
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So right underneath the right hemidiaphragm will be the liver
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and right underneath the left hemidiaphragm which you can't see very clearly
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because it's not poking out underneath here will be the stomach.
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Apologies for that but you can see kind of on the fly how we can get those things confused.
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Now recall that the diaphragm has three openings that allow structures to traverse the region.
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Recall the esophagus is going to traverse the region, you will have also the vagal trunks will be closely related to that.
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You'll have the inferior vena cava that will ascend through this region to get to the right atrium, and of course you'll have the aorta
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which is also going to traverse the diaphragm in order to get to the abdominal cavity region.
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Okay that should wrap us up regarding the musculature in this session and the inguinal canal structures and contents.
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Please take your time to review and reach out if you have any questions.
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I hope you have a great rest of your day.

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Vocabulaire et conseils d’expression pour cette leçon

Cette leçon d’expression orale s’appuie sur la vidéo « Abdominal Muscles & Inguinal Canal - Dissection Supplement ». Les mots qui reviennent le plus souvent : inguinal, rectus, ligament, muscle, region. Cette vidéo contient 121 phrases et 1760 mots à répéter en shadowing. La partie parlée dure 11:39. Le locuteur parle à un rythme naturel d’environ 151 mots par minute, proche d’une conversation courante. Seuls 77 % 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 :

MotPrononciationSens
muscle nom/ˈmʌs.əl/muscle
canal nom/kəˈnæl/canal
abdominal adjectif/æbˈdɑm.ə.nl̩/abdominal
anterior adjectif/ænˈtɪɹ.i.ɚ/antérieur
reflect verbe/ɹɪˈflɛkt/refléter, réfléchir
exit nom/ˈɛɡzət/sortie
extend verbe/ɛkˈstɛnd/étendre
tissue nom/ˈtɪʃ.(j)u/tissu
nerve nom/nɝv/nerf
underneath adverbe/ˌʌndɚˈniθ/dessous
cord nom/ˈkoɹd/corde
inferior adjectif/ɪnˈfɪɹ.i.ɚ/inférieur
recall verbe/ɹɪˈkɔl/rappeler
lateral adjectif/ˈlætəɹəl/latéral
cavity nom/ˈkæv.ɪt.i/carie

Les verbes à particule que vous entendrez

MotSens
come up verbese montrer, sortir du bois
point out verbepointer
reach out verbetendre la main
run down verbeheurter
see through verbevoir à travers

La grammaire de cette vidéo

Les structures que le locuteur utilise le plus, avec les mots exacts de la vidéo :

StructureDans la vidéo
Voix passive be + participe passé — l’accent est mis sur ce qui arrive, pas sur qui le faithas been done · has been left · be interspersed
Propositions relatives who / which + proposition — une précision sur une personne ou une chosealba which means · sheath which has · side which is
Present perfect have/has + participe passé — une action passée qui compte encore maintenanthas been done · has been left · has been opened

Prononciation à surveiller

Le locuteur utilise 14 contractions et formes réduites, comme you're, can't, doesn't. Prononcez-les sous leur forme courte, telles que vous les entendez.

  • Les sons « th »: underneath /ˌʌndɚˈniθ/, sheath /ʃiθ/, thoracic /θəˈɹæsɪk/
  • Les sons « sh » et « zh »: superficial /ˌsupɚˈfɪʃəl/, tissue /ˈtɪʃ.(j)u/, associate /əˈsoʊʃi.ət/, traditionally /tɹəˈdɪʃ.ə.nə.li/, essentially /ɪˈsɛnʃəli/
  • Mots longs — placez bien l’accent: superficial /ˌsupɚˈfɪʃəl/, anterior /ænˈtɪɹ.i.ɚ/, inferior /ɪnˈfɪɹ.i.ɚ/, associate /əˈsoʊʃi.ət/, traditionally /tɹəˈdɪʃ.ə.nə.li/

Les sons difficiles pour les francophones :

  • /tʃ/ et /dʒ/ — à ne pas adoucir en « ch » et « j »: apology /əˈpɑ.lə.d͡ʒi/, attachment /əˈtæt͡ʃmənt/, aperture /ˈæp.ɚˌt͡ʃʊɹ/, vasculature /ˈvæskjʊlət͡ʃə(ɹ)/
  • /r/ anglais — langue recourbée, sans frotter la gorge: anterior /ænˈtɪɹ.i.ɚ/, reflect /ɹɪˈflɛkt/, cord /ˈkoɹd/, inferior /ɪnˈfɪɹ.i.ɚ/, recall /ɹɪˈkɔl/

Comment s’entraîner avec cette vidéo

  1. Écoutez la vidéo en entier une fois sans parler et notez les mots que vous ne connaissez pas.
  2. Commencez à la vitesse 0,75×, répétez phrase par phrase, puis revenez à la vitesse normale quand cela devient facile.
  3. Enregistrez-vous et comparez avec l’original, en faisant attention à des mots comme muscle, canal, abdominal.

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.

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