deck_4394585 Flashcards
In the aponeurosis of what muscle is the superficial inguinal ring located?
External abdominal oblique
What is the cranial border of the deep inguinal ring?
caudal border of the aponeurosis of the internal abdominal oblique
What is the medial border of the deep inguinal ring?
Lateral border of the rectus abdominis
What is the caudal border of the deep inguinal ring?
Inguinal ligament & caudal end of External Abdominal oblique
What structures are located in the inguinal canal?
Spermatic cord/vaginal processExternal cremaster muscleExternal pudendal arter and veinGenitofemoral nerveEfferent duct of the superficial inguinal lymph node
What 2 structures are used as landmarks for dividing the quadrants?
Linea albaUmbilicus
What are the borders of the abdominal cavity? (cranial, dorsal, lateral, ventral, caudal)
Cranial: DiaphragmDorsal: Lumbar vertebrae, sublumbar musclesLateral: EAO, IAO, TAVentral: Rectus abdominis, rectus sheath, linea albaCaudal: Pelvic inlet
What organs are contained in the abdominal cavity?
StomachDescending colonLiverPancreasSpleenKidneysFemale reproductive tractNerve plexusesBlood vesselsLymph nodesOmentum
Are there any organs present in the peritoneal cavity?
No
What is the linea alba also known as?
Midvental raphe
What forms the linea alba?
Aponeurosis of Extrnal Abdominal Oblique, Internal Abdominal ObliqueTransversus abdominisTransverse fasica
What does the linea alba blend with?
Prepubic tendon
Where does the linea alba originate?
Xiphoid cartilage
Where does the linea alba insert?
Pelvic symphysis
What layers make the external lamina of the cranial rectus sheath?
EAOsuperficial layer of IAO
What layers make the internal lamina of the cranial rectus sheath?
Deep layer of IAOTransverse abdominisTransverse fascia
What layers make the external lamina of the umbilical rectus sheath?
EAOIAO
What layers make the internal lamina of the umbilical rectus sheath
Transverse abdominisTransverse fascia
What layers make the external lamina of the caudal rectus sheath?
EAOIAOend of the Transverse abdominis
What is the internal lamina of the caudal rectus sheath made of?
Transverse fascia
Where is the parietal peritoneum in regards to the transverse fascia?
Deep to TF
What is the largest and most complex serous membrane in the body?
Peritoneum
What is the difference between the male and female peritoneum?
Closed sac in the maleFemale opens to peritoneal cavity via abdominal ostium of uterine tubes in ovarian bursa
What are the parts of the peritoneum?
ParietalVisceralPeritoneal cavity
What does the parietal peritoneum line?
Abdominal wallAbdominal surface of diaphragmPelvic cavityScrotal cavity Vaginal process
What does the parietal peritoneum form?
Vaginal tunic of spermatic cord & vaginal processVaginal ring of peritoneal cavity
Where is the visceral peritoneum located?
Covers the organs in abdominal cavity and cranial portion of pelvic cavity
Does the peritoneal cavity contain any organs?
NO!!
When is the exception that something is located in the peritoneal cavity aside from serous fluid?
Ova ovulates in to peritoneal cavity to the infundibulum
What are the 3 parts of the peritoneal cavity?
Greater sacLesser sacEpiploic foramen
What is the lesser peritoneal sac also known as?
Omental bursa
What is the purpose of the epiploic foramen?
Communication between the 2 sacs
What is the pararectal fossa?
Space on either side of the mesorectum
Where is the rectogenital pouch?
Below rectum & above genitals
Where is the vesicogenital pouch?
Above bladder & below genitals
Where is the pubovesical pouch?
Above pubic bone & below bladder
What is the mesentery?
Double layer of peritoneum
What is the purpose of the mesentery?
Suspends freely moveable abdominal organsSupplies route for blood vessels, nerves, lymphatics
Where is the root of the mesentery attached?
Dorsal abdominal wall at L1-L2
Which artery runs through the root of the mesentery?
Cranial mesenteric artery
What are the 2 parts of the mesentery?
DorsalVentral
Which part of the mesentery supports most of the organs?
Dorsal
Name the 6 segments of the dorsa mesentery
Greater omentumMesoduodenumMesojejunumMesoileumMesocolonMesorectum
What 2 parts of the dorsal mesentery make the great mesentery?
MesojejunumMesoileum
What 2 layers of the dorsal mesentery are continuous with the great mesentery?
Deep leaf of the greater omentumdescending mesocolon
What is the ventral mesentery derived from?
Ventral mesogastrium
What are the segments of the ventral mesentery?
Lesser omentumFalciform ligamentMedian ligament of the bladderAntimesenteric ligament (Ileocecal fold)
What umbilical structure forms the falciform ligament in the adult?
Umbilical vein
What embryonic structure forms the median ligament of the bladder in the adult?
Urachus
What ligament is present at the crest of the diaphragm?
Coronary ligament
What ligament is present on either crus of the diaphragm
Triangluar ligament
What ligament is present between the stomach and the spleen?
Gastrosplenic ligament
What ligament is between the liver and the stomach?
Hepatogastric ligament
Where is the greater omentum located?
From the greater curvature of the stomach to the dorsal abdominal wall
Name 2 structures the superficial leaf of the greater omentum contains
SpleenGastrosplenic ligament
Name the structure that is contained in the deep leaf of the greater omentum
Left lobe of pancreas
Why is the greater omentum considered to have 4 layers?
Superficial & deep leaf are double layered
Where is the omental bursa located?
Between superficial and deep leaf
What forms the walls of the omental bursa?
Stomach, liver, pancreas, greater & lesser omentum
Where is the lesser omentum located?
Lesser curvature of the stomach and cranial part of duodenum t the visceral surface of liver
What 3 structures are located within the lesser omentum?
Papillary process of caudate lobeHepatogastric ligamentHepatoduodenal ligament
Where does the epiploic foramen lead to and from?
From omental bursa to peritoneal cavity
What are the borders of the epiploic foramen?
Caudal vena cava (dorsal)Portal vein (ventral)Caudate process of the liver (lateral)
What is the relevance of the epiploic foramen?
Most common site of extrahepatic portosystemic shunt