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Unformatted text preview: 1 Gross Anatomy II Unit III Study Guide Abdomen: Anterior Abdominal Wall: 9 regions -- divided by 2 vertical and 2 horizontal planes midclavicular lines: vertical lines, from midpoints of clavicles to midpoint between ASIS and pubic symphysis subcostal plane : horizontal plane joining the lowest part of the costal margin on each side -- inferior margin of rib 10 -- L2 transtubercular plane : horizontal plane joining the tubercles of the iliac crests -- L5 9 regions: right hypochondriac -- liver epigastric -- liver left hypochondriac -- fundus and body of stomach right lumbar umbilical left lumbar right iliac -- appendix hypogastric = suprapubic left iliac Quadrants: median plane : vertical plane thru midline transumbilical plane: horizontal plane thru the umbilicus 4 quadrants: right upper left upper right lower left lower umbilicus lies between L2 & L5 -- lower in children and elderly Striae Gravidarum: reddish elongate lines that appear in anterior abdominal wall of pregnant female -- may change to linea albicantes after birth Lineae Albicantes: thin scar-like lines -- replace striae gravidarum can find both of these conditions if obese people and weight lifters Layers of the Anterior Abdominal Wall: skin superficial layer of superficial fascia -- Campers fascia thin, fatty layer -- continuous with the superficial fascia of the perineum and thigh deep layer of superficial fascia -- Scarpas fascia membranous layer -- firmly fastened to the fascia lata of the thigh -- below inguinal ligament fundiform ligament-- prolongation of this fascia from the pubic symphysis onto the dorsum of the penis/clitoris Colles fascia -- continuation of this fascia over the pubis and perineum deep fascia external oblique muscle internal oblique muscle transversus abdominis muscle fascia transversalis extraperitoneal fat parietal peritoneum peritoneal cavity 2 visceral peritoneum abdominal organs Extravasation of Urine: potential space between Scarpas fascia and deep fascia where fluid can collect rupture of the spongy urethra allows urine into this space -- can spread superiorly into the anterior abdominal wall between the 2 layers of fascia shows red inflammation along the abdominal wall urine can not pass downward into the thigh due to fusion of Scarpas fascia to the fascia lata almost exclusive in males due to the male spongy urethra being longer, more horizontal, and more superficial than the female...
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- Spring '08