Compartmental Anatomy Of The Abdomen And Pelvis Flashcards
Peritoneal cavity is divided into
Greater and lesser peritoneal cavity
Communicates around the liver with the anterior subhepatic and posterior subhepatic space
Right subphrenic space
Most dependent portion of the abdominal cavity in a supine patient and it preferentially collects ascites, hemoperitoneum, metastases and abscesses
Morison pouch (right hepatorenal fossa)
Left and right subphrenic space is separated by the
Falciform ligament
Left subphrenic space is separated from the left paracolic gutter by the
Phrenicocolic ligament
Common location for disease process of the tail of pancreas
Left subphrenic (perisplenic space)
Space affected by the disease of the duodenal bulb, lesser curve of stomach, gallbladder and left lobe of liver
Left subhepatic space (gastrohepatic space)
Most dependent portion of the abdomen in the upright patient
Pelvis
Consists of two closely applied layers of peritoneum extending from the umbilicus to the diaphragm in a parasagittal plane
Falciform ligament
Caudal free end of falciform ligament contains the
Iigamentum teres
Reflections of the falciform ligament separate over the posterior dome of the liver forming the _____ which define the bare area of the liver not covered by peritoneum
Coronary ligaments
Prevents access of ascites and other intraperitoneal processes from covering the bare area of the liver
Coronary ligaments
Lesser omentum is composed of
Gastrohepatic and hepatoduodenal ligaments
Separates the gastrohepatic recess of the left subphrenic space from the lesser sac
Lesser omentum
Lesser omebtum transmits
Coronary veins and lymph nodes
Lesser omentum lymph nodes enlarge with
Gastric carcinoma and lymphoma
Isolated peritoneal compartment between stomach and pancreas
Lesser sac
Lesser sac communicates with the peritoneal compartment thru what small foramen
Foramen of winslow
Pathologic processes in the lesser sac usually occur because of disease in the
Pancreas and stomach
Double layer of peritoneum that hangs from the greater curvature of stomach and descends infront of the abdominal viscera, separating bowel from the anterior abdominal wall
Greater omentum
Serves as a fertile ground for implantation of peritoneal metastases and assists in loculation of inflammatory processes of the peritoneal cavity such as abscess and tuberculosis
Greater omentum
Retroperitoneal space is divided into
Anterior pararenal, perirenal and posterior pararenal compartments
Retroperitoneal space is divided by the _____ into anterior pararenal, perirenal and posterior pararenal compartments
Anterior and posterior renal fascia
Extends between the posterior parietal peritoneum and the anterior renal fascia
Anterior pararenal space
The anterior pararenal spacr is bounded laterally by the
Lateroconal fascia
Contents of the anterior pararenal space
Pancreas, duodenal loop, ascending and descending portions of the colon
Anterior and posterior renal fasciae encompass the kidney, adrenal gland and perirenal fat within the
Perirenal space
Which is thicker between the anterior and posterior renal fasciae?
Posterior
The posterior layer of the posterior renal fascia is continuous with
Lateroconal fascia
The right perirenal space is open ______ to the bare area of the liver allowing spread of disease between kidney and the liver
Superiorly
Potential space, usually filled only with fat, extending from the posterior renal fascia to the transversalis fascia
Posterior pararenal space
Continues into the flank as the properitoneal fat “stripe” seen on plain films of the abdomen
Posterior pararenal space
Posterior pararenal space is limited medially by the
Lateral edges of psoas and quadratus lumborum muscles
Pelvis is divided into 3 major anatomic compartments
Peritoneal caviry
Extraperitoneal space
Perineum
Peritoneal extends to the level of _____ in females or to the level of _____ in males
Vagina, forming the pouch of douglas (cul-de-sac)
Seminal vesicles, forming rhe rectovesical pouch
Reflects over the uterus, fallopian tubes and parametrial uterine vessels and serves as the anterior boundary of rectouterine pouch of douglas
Broad ligament
Most dependent portion of the peritoneal cavity
Cul-de-sac
Continuous with the retroperitoneal space of the abdomen, extends to the pelvic diaphragm, and includes the retropubic space of Retzius
Extraperitoneal space of the pelvis
Lies below the pelvic diaphragm
Perineum
Anatomic landmark of perineum
Ischiorectal fossa
Ischiorectal fossa is seen below what muscle
Levator ani
