Lecture 38 - Abdominal Cavity Flashcards
What are the 3 regions of the abdominal cavity
- cranial
- middle
- caudal
what are the boundaries of the cranial abdominal cavity
diaphragm to the level of the caudal costal arch
what are the boundaries of the middle abdominal cavity
caudal costal arch to the level of the tuber coxae
what are the boundaries of the caudal abdominal cavity
tuber coxae to the brim of the pelvis/pubis
what are the boundaries of the abdominal cavity
cranial: diaphragm
caudal: pelvic inlet
dorsal: lumbar vertebrae and hypaxial mm.
ventral: abdominal wall mm.
what are the 3 locations of openings to the abdominal cavity
- diaphragm
- abdominal wall
- pelvic inlet
what are the openings located in the diaphragm
- aortic hiatus
- esophageal hiatus
- caval foramen
what are the openings located in the abdominal wall
- inguinal canal
- vascular lacuna
what passes through the aortic hiatus
- aorta
- azygous v.
- thoracic duct
what passes through the esophageal hiatus
- esophagus
- ventral and dorsal vagal trunks
what passes through the caval foramen
caudal vena cava
describe the inguinal canal
fissures between the abdominal mm. and their aponeuroses present left/right and in both sexes
deep and superficial inguinal rings
what passes through the inguinal canals
- external pudendal a./v.
- genitofemoral n.
- spermatic cord (males)
- vaginal processes (female)
what passes through the vascular lacuna
femoral a./v.
what passes through the muscular lacuna
iliopsoas m. and femoral n.
what separates the vascular and muscular lacuna from the superficial inguinal ring
inguinal ligament
what are the boundaries of the pelvic inlet
dorsal: promontory + wings of sacrum
ventral: pubis
lateral: body of ilium
what is the peritoneum
serous membrane of the abdominal cavity
describe connecting peritoneum
double fold in the peritoneum connecting organ to body wall/organs
mesentery connects
organ to body wall
intestines to abdominal wall
ligament connects
organ to body wall or organ
fold connects
organ to organ
omentum connects
stomach to body wall
T/F: connecting peritoneum has 2 serous membrane layers
TRUE
greater omentum
greater curvature of the stomach to mid-dorsal body wall
expansive and fatty
envelopes spleen
pancreas in deep leaf
4 serous layers in some places
lesser omentum
lesser curvature of stomach and duodenum to liver
contains hepatic a. and portal v.
omental bursa
potential space enclosed by omenta, stomach, and liver
sub-part of peritoneal cavity
accessed by epiploic foramen
falciform ligament
liver to ventral body wall from the diaphragm causally to the umbilicus
contains remnants of umbilical v.
duodenocolic fold
peritoneum between ascending duodenum and descending colon
ileocecal fold
peritoneum between cecum and distal ileum
