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Linea Alba- Anatomy on MRI

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<v ->Doctor P. here with some anatomy of the linea alba,

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which is this midline raphe between the two components

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of the rectus abdominis,

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which is divided up into a medial

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and a more lateral component.

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This raphe extends from the xiphoid to the pubis

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and it narrows as one courses inferiorly.

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It is formed by the oblique aponeurosis

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of the transverse abdominis.

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Now when we look at this raphe as it comes down,

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it actually will split in front of the rectus abdominis

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as it inserts on the symphysis pubis,

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so there'll be a component of it in the front,

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the so-called superficial attachment

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that goes to the pubis along with the rectus abdominis

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as we come down.

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Here we see the whole thing kind of attaching right there

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and you can't really separate it out

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from the rest of the rectus so-called tendon

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or aponeurotic layer, but you can see

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the deeper component which is a lamella

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that's a little bit triangular in shape right there

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that sits immediately deep to it.

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So in other words, the linea alba splits

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a component in front that's hard to see

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and a small, triangular lamella in back that you can see

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that inserts on the posterior lip of the pubic crest.

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Let's move on.

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Doctor P. out.

Report

Description

Faculty

Stephen J Pomeranz, MD

Chief Medical Officer, ProScan Imaging. Founder, MRI Online

ProScan Imaging

Tags

Musculoskeletal (MSK)

MRI

Bone & Soft Tissues

Acquired/Developmental