Abdominal walls, cavities, regions and planes Flashcards
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Serosa covering the abdominal cavity and reflects on the abdominal viscera
Peritoneum
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The potential space lined by the peritoneum
Peritoneal cavity
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Contents of the peritoneal cavity
ECF
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The abdominal cavity extend superiorly into the thoracic cage up to which intercostal space?
4th
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Abdominal organs protected by the thoracic cage
Spleen, part of kidneys, liver, stomach
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Which planes divide the abdominal cavity into 4 quadrants?
Median plane and transumbilical plane
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The transumbilical plane passes through which level of the vertebra?
Level of IV disc between L3 and L4
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In which quadrant: jejunum
Left upper
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In which quadrant: ileum
Right lower
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In which quadrant: pylorus
RIght upper
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In which quadrant: gall bladder
Right upper
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Planes that divide the abdominal cavity into nine regions
Right and left midclavicular plane, subcostal plane (sometimes, transpyloric plane), and transtubecular plane (sometimes, interspinous plane)
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The midclavicular planes pass from which points to which points?
From clavicle to midinguinal point
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The subcostal plane is on which level of the vertebra?
L3
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The subcostal plane is marked by which costal cartilage?
10th
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The transtubecular plane is on which vertebral level?
L5
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The transtubecular plane extends from to which points?
Iliac tubercles
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Plane marked by the 10th costal cartilage
Subcostal plane
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Horizontal plane on L5
Transtubecular plane
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Vertebral level of the transpyloric plane
L1
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Structure that mark the interspinous plane
ASIS
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Horizontal plane on L3
Subcostal plane
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Horizontal plane that stretches from iliac tubercle to iliac tubercle
Transtubecular plane
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Horizontal plane that stretches from ASIS to ASIS
Interspinous plane
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Horizontal plane on L1
Transpyloric plane
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Horizontal planes of the abdominal cavity
Subcostal and transtubecular plane Transpyloric and interspinous plane Transumbilical plane
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Regions between the right and left midclavicular plane (superior to inferior)
Epigastric, umbilical, pubic regions
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Regions lateral to the midclavicular plane (superior to inferior)
R. and L. hypochondrium, R. and L. lateral, R. and L. inguinal regions
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Superior border of the anterolateral abdomiinal wall
Cartilages of 7-10th ribsa and xiphoid process
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Inferior border of the anterolateral abdominal wall
Inguinal ligament and anterolateral aspects of the pelvic girdle (iliac crest, pubic crest, pubic symphysis)
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Layers of the anterolateral abdominal wall (outer to inner)
Skin, subcutaneous tissue, muscles, extraperitoneal fat, parietal peritoneum
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Layers of the anterolateral abdominal wall’s subcutaneous tissue (superficial fascia)
Superficial fatty layer (Camper fascia), deep membranous fatty layer (Scarpa fascia)
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Major site of fat storage in the anterolateral abdominal wall of males
Superficial fascia
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The skin of the anterolateral abdominal wall attaches losely to the subcutaneous tissue except at which area?
Umbilicus
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The parietal epithelium is how many layer of epithelial cells?
One
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Muscles of the anterolateral abdominal wall (outer to inner)
External oblique, internal oblique, transversus abdominis
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Fascia covering the surface of the EO
Superficial investing fascia
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Fascia between EO and IO
Intermediate investing fascia
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Fascia between IO and TA
Deep investing fascia
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Fascia lining the deep surface of TA
Transversalis fascia
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Five (bilaterally paired) muscles of the anterolateral abdominal wall
EO, IO, TA, rectus abdominis, pyramidalis
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Aponeuroses of the RA muscle
Rectus sheath
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The midline raphe formed by the interweaving aponeurosis of the RA
Linea alba
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The linea alba extends from which point superiorly to which point inferiorly?
Xiphoid process to pubic symphysis
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Largest most superficial flat muscle of the AAW
EO