Term
What are the subdivisions of the abdominal wall?
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Definition
Musculoaponeurotic=
Anterior wall,
Right Lateral wall,
Left Lateral wall,
But because lateral and anterior wall have indefinite boundaries it is called the anterolateral wall.
Posterior wall = Has lumbar vertebral column aswell as musculoapneurotic components.
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Term
What are the boundaries of the anterolateral abdominal wall?
(superior/inferior) |
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Definition
Superior:
7th-10th rib cartillages, xiphoid process of sternum
Inferior:
inguinal ligament and sup. margins of anterolateral pelvic girdle (iliac crests, pubic crests and pubic symphysis) |
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Term
| what are the layers of the abdomen from skin... |
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Definition
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Term
| Describe the subcutaneous tissue above and below the umbilicus. |
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Definition
Aobve the umbilicusconsistent with that of most regions, here the thorax, one layer.
INferior to the umbilicus there are two layers, the superficial fatty layer (CAMPER FASCIA) and the deeper membranous layer, reinforced with collagen/elastic fibres (SCARPA FASCIA)
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(Membranous layer continues as Colles fascia into the perineal region but not the thighs) |
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Term
| What is the rectus sheath and where is it? |
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Definition
Between the MCL and the midline.
The sheet like aponeurosis of the abdominal muscles (external oblique, internal oblique and transversus abodominus) form the tough aponeurotic tendinous rectus sheath. |
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Term
| What is the linea alba and where is it? |
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Definition
It is the 'midline raphe' extending from the xiphoid process of the sternum to the pubic symphysis.
Where the aponeurosis of the anterolateral muscles, superficial and deep, from each side of the body meet/interweave.
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Term
| What two muscels are contained within the rectus sheath? |
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Definition
Rectus abdominis (large)
Pyramidalis (small) |
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Term
| What are the attachments of the external oblique muscle? |
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Definition
Origin: External surfaces of 5th-12th ribs.
Insertion: Linea alba, pubic tubercle and anterior half of iliac crest. |
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