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Inferior Parietal Lobule

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0:01

Let's talk about the superior and inferior parietal lobule,

0:04

especially the inferior parietal lobule.

0:06

Just to get you oriented,

0:08

here's your staircase descending precentral sulcus,

0:12

which means this has to be the precentral gyrus,

0:15

which means that is the central sulcus.

0:17

That is the subcentral sulcus.

0:19

Remember, these two,

0:20

the Sylvian fissure and the central sulcus,

0:23

don't communicate.

0:23

And there is the post-central sulcus.

0:26

There's a method to my madness

0:27

because the postcentral sulcus becomes this structure,

0:33

an arcuate shape or horseshoe-shaped structure

0:36

called the intraparietal sulcus.

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Sometimes I use the term interparietal,

0:41

which is actually technically incorrect,

0:43

so forgive me if I do.

0:44

The intraparietal sulcus.

0:47

Above that is going to be the superior parietal lobule.

0:49

Below it, the inferior parietal lobule.

0:51

So, let's say it again one more time.

0:53

I know you're listening on tape,

0:56

so you can review it again.

0:57

But there is the postcentral sulcus.

1:00

Central sulcus.

1:01

Postcentral sulcus is the upswing of this arcuate shape,

1:05

there it is again,

1:06

this arcuate-shaped intraparietal sulcus.

1:09

The intraparietal sulcus separates the superior parietal

1:12

lobule from the inferior parietal lobule.

1:14

What's in the inferior parietal lobule?

1:16

Well, right above the Sylvian fissure,

1:18

supermarginal gyrus,

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right above the superior temporal sulcus?

1:23

The angular gyrus.

1:25

Inferior parietal lobule.

1:26

You got it.

Report

Description

Faculty

Stephen J Pomeranz, MD

Chief Medical Officer, ProScan Imaging. Founder, MRI Online

ProScan Imaging

Tags

Neuroradiology

MRI

Brain

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