Shadowing Practice: SVINutes: Cerebral Venous Sinus Anatomy - Learn English Speaking with Video

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Hi, thank you for tuning into this minute on venous sinus anatomy.

So we're going to jump right in.

And the most important thing to frame our discussion today is to really understand the circulation for the venous system.

So that starts with understanding that the cerebrospinal fluid is predominantly made in the choriole plexus of the lateral ventricles.

and then from there it's going to bathe the brain, flow through the cisterns, and then be absorbed through the arachnoid granulations.

So this really shows how those arachnoid granulations are jutting into each one of those venous sinuses,

and then from there the peripheral venous sinuses are predominantly going to drain from anterior to posterior,

then around the sides of the ears and down the jugular vein.

We're going to go through all of those details in the next slides.

So first we need to remember that the venous sinuses are not like arteries.

They are not pipes.

They are instead spaces that are created between the dural leaflets.

So between the periosteal layer aligning the skull and between the meningeal layer aligning the surface of the brain.

And so because of that, as this slide is showing, they end up being a series of trabeculated spaces.

They're not just one big open channel and they're not all created alike because of that.

Also, you'll note the arachma granulation is jutting into those channels, which also can change the shape and the size of each one of those sinuses.

Now that's true for the peripheral sinuses, like I just showed you, as well as for the deep sinuses.

So in this slide this is the cavernous sinus with both a diagram

and an angiogram side by side just to show that true trabeculation

and that when you're traversing these spaces they are not just one big open tube

but instead of more like finding the holes in Swiss cheese.

So let's get through the the sinuses and the venous drainage.

So starting with the peripheral anatomy what you can see at

the top of the slide here is the superior sagittal sinus

that's going to collect the venous drainage from the cortical veins starting anteriorly

and then draining posteriorly back to the confluence of sinuses from

the confluence you're going to drain both sides down the transverse sinuses out laterally

and then down the sigmoid sinus into the jugular vein now those peripheral

that peripheral drainage is going to be met by the deep venous drainage as well.

So we're going to introduce that on this slide and then go into some details.

So you're going to have the inferior sagittal sinus that's going to be lining the corpus callosum, so again that same c-shape going from anterior to posterior.

When it gets down to the inferior border it's going to connect to that confluence by the straight sinus,

again draining by the sigmoid sinuses and down the jugular vein.

The other deep venous structures, which you can see here in the diagram we'll look at on this next slide.

So predominantly we're talking about the internal cerebral veins and those are bilateral, the paired structures as well as the basal vein of Rosenthal, again bilateral.

They're going to converge to create the great cerebral vein of Galen

and then that is also going to empty into the straight sinus.

So let's look at those individually.

So for the internal cerebral vein, you want to think of that as draining all of the midline deep structures.

So things like the fornix,

the amygdala, the hippocampus, and of course the thalamus are all going to drain into those internal cerebral veins bilaterally,

as opposed to the basal vein of Rosenthal, which is going to start collecting blood as anterior as the anterior cerebral veins,

and then it's going to migrate back and around the cisterns

and connect to that internal cerebral vein to create the vein of Galen.

Now, it's important to note that each one of these sinus systems, both the deep sinus system and the superficial sinus system, both have anastomosis.

So what I'm showing on this slide is the convergence of the superficial anastomosis.

So that's going to be the superior cerebral vein, which is going to come in from the anterior surface.

And it's going to anastomose with the vein of Trollard, which is going to be your predominant cortical vein that goes to the superior sagittal sinus.

And with the vein of which is going to be your predominant venous drainage going into the transverse sinus.

Now it's important to note that this is very uncommon pattern that I've shown here on the angiogram or the venogram, where all three are about the same size.

They're all co-dominant truly.

Usually one is much larger, another smaller, and just remember that that flow can go anterior

and posterior through each of those channels to either drain through the more anterior deep drainage or more superficial posterior drainage.

Now those variations

we see every day and so this is an example of the transverse sinuses

which in panel C are truly co-dominant

but more commonly one is going to be dominant

and the other one not and so that's what you're seeing in A

and B where A the left transverse sinus is going to be the dominant drainage

and and be the right transverse sinus is going to be the dominant drainage.

And so we see this on imaging every day, but the key is to note that it can actually create pathology.

So if you couple that with, for instance, an arachnid granulation at the transverse sigmoid junction, like in this slide, what you can see is that in this person,

the left transverse sinus was the non-dominant sinus.

The dominant drainage was through the right transverse sinus, and then you got this pinch point from that arachnoid granulation.

So the pressures are shown on this slide and you can see

that this person had intracranial hypertension with a pressure of 45 in the spherosagittal sinus

but then we were able to stent that sinus to release

that pressure and the pressure did normalize on the right side of the screen as soon as that stent was placed.

So just to summarize what I've shown you, hopefully everybody can recognize some of the major cerebral veins and

and the venous sinus drainage for both the superficial and deep venous sinus systems.

There's much more complicated anatomy involved, but this gives you a kind of a high level overview.

And so I thank you for taking the time and I hope you've enjoyed this minute.

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Vocabulary and speaking notes for this lesson

This video has 72 sentences and 1111 words to shadow. The speech runs for 6:12. The speaker talks at a natural 179 words per minute, close to everyday conversation. Only 75% of the words are among the 3,000 most common in English, so the vocabulary is demanding.

Key vocabulary in this video

15 words from the video worth learning, with pronunciation and meaning:

Word	Pronunciation	Meaning
vein noun	/veɪn/	A blood vessel that transports blood from the capillaries back to the heart.
drainage noun	/ˈdɹeɪnəd͡ʒ/	A natural or artificial means for the removal of fluids from a given area by its draining away.
slide noun	/ˈslaɪ̯d/	An item of play equipment that children can climb up and then slide down again.
cerebral adjective	/səˈɹi.bɹəl/	Of or relating to the brain, cerebrum, or cerebral cortex.
dominant adjective	/ˈdɑmənənt/	Ruling; governing; prevailing
drain noun	/dɹiːn/	A conduit allowing liquid to flow out of an otherwise contained volume; a plughole (UK)
anterior adjective	/ænˈtɪɹ.i.ɚ/	Nearer the forward end, especially in the front of the body; nearer the head or forepart of an animal.
peripheral adjective	/pəˈɹɪf(ə)ɹ(ə)l/	On the periphery or boundary.
superficial adjective	/ˌsupɚˈfɪʃəl/	Existing, occurring, or located on the surface.
superior adjective	/sʊˈpɪɹ.i.ɚ/	Higher in rank, status, or quality.
anatomy noun	/əˈnætəmi/	The science that deals with the form and structure of organic bodies; anatomical structure or organization.
predominantly adverb	/pɹɪˈdɒmɪnəntli/	In a predominant manner. Most commonly or frequently by a large margin.
layer noun	/ˈleɪ̯ɚ/	A single thickness of some material covering a surface.
connect verb	/kəˈnɛkt/	To join (to another object): to attach, or to be intended to attach or capable of attaching, to another object.
collect verb	/ˈkɑlɪkt/	To gather together; amass.

Phrasal verbs you will hear

Word	Pronunciation	Meaning
end up verb		To bring to a conclusion.
get down to verb		To start focusing on doing something serious
get through verb	/ɡɛt ˈθɹu/	To overcome; to endure.
go through verb		To travel from one end of something to the other.

Pronunciation to watch

The speaker uses 18 contractions and reduced forms, such as they're, we're, you're. Say them the short way, as you hear them.

The “th” sounds: pathology /pəˈθɒləd͡ʒi/, bathe /beɪð/, thalamus /ˈθæləməs/
The “sh” and “zh” sounds: superficial /ˌsupɚˈfɪʃəl/, variation /ˌvɛəɹiˈeɪʃn̩/, circulation /ˌsɝkjʊˈleɪʃən/, junction /ˈd͡ʒʌŋkʃən/, hypertension /ˌhaɪ.pɚˈtɛn.ʃən/
Long words — get the stress right: anterior /ænˈtɪɹ.i.ɚ/, peripheral /pəˈɹɪf(ə)ɹ(ə)l/, superficial /ˌsupɚˈfɪʃəl/, superior /sʊˈpɪɹ.i.ɚ/, anatomy /əˈnætəmi/

How to practise with this video

Listen to the whole video once without speaking and note the words you do not know.
Start at 0.75× speed, shadow it sentence by sentence, then go back to normal speed once it feels easy.
Record yourself and compare with the original, paying attention to words like vein, drainage, slide.

Grammar in this video

The structures the speaker uses most, with the exact words from the video:

Structure	In the video
Passive voice be + past participle — the focus is on what happens, not who does it	is predominantly made · be absorbed · are created
Present perfect have/has + past participle — a past action that still matters now	I've shown · you've enjoyed
Relative clauses who / which + clause — extra information about a person or thing	Rosenthal, which is · vein, which is · Trollard, which is

What is the Shadowing Technique?

Shadowing is a science-backed language learning technique originally developed for professional interpreter training and popularized by polyglot Dr. Alexander Arguelles. The method is simple but powerful: you listen to native English audio and immediately repeat it out loud — like a shadow following the speaker with just a 1–2 second delay. Unlike passive listening or grammar drills, shadowing forces your brain and mouth muscles to simultaneously process and reproduce real speech patterns. Research shows it significantly improves pronunciation accuracy, intonation, rhythm, connected speech, listening comprehension, and speaking fluency — making it one of the most effective methods for IELTS Speaking preparation and real-world English communication.

Shadowing technique: read the full step-by-step guide →

Shadowing Practice: SVINutes: Cerebral Venous Sinus Anatomy - Learn English Speaking with Video

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Vocabulary and speaking notes for this lesson

Key vocabulary in this video

Phrasal verbs you will hear

Pronunciation to watch

How to practise with this video

Grammar in this video

What is the Shadowing Technique?