Peritoneal Cavity and Abdominal Wall

what does the diaphragm seperate

the abdominal cavity and throacic cavity

what part of respiration does the diaphragm assist with

inspiration

anterior border of abdominal wall

xyphoid process to the pelvic bones

posterior border of abdominal wall

midline to fifth lumbar vertebrae

lateral border of abdominal wall

12 ribs to bony pelvis

below the peritoneal line, what two structures seperate the rectus muscle from the intra-abdominal contents

transversalis fascia and the peritoneum

biconvex muscle group delineated by the linea alba and linea semilunaris

rectus muscles

discrete linear echogenicity in the deepest layer of the abdominal wall

peritoneal line

fibrous seam or line that divides the abdomen symmetrically. xyphoid process to sympphysis pubis

linea alba

sheet or broad band of fibrous connective tissue beneath skin or aorund muscles and other organs

fascia

aponeuroses of external oblique,internal oblique, and transversus abdmoninis muscles unite to form a bandlike fibrous groove called the _______

linea semilunaris or spigelian fascia

components of the anterior abdominal wall

1. external oblique

2. rectus abdominus

3. rectus sheath

components of anterior lateral abdominal wall

1. internal oblique

2. transversus abdominis

components of posterior lateral abdominal wall

1. quadratus lumborum

2. transversus abdominis

components of posterior abdominal wall

1. psoas

2. quadratus lumborum

3. iliacus

4. iliopsoas distally

fatty layer of superficial fascia containing blood vessels and nerves

camper’s fascia'

membranous layer fat and fiber tissue of superfiical fascia

scarpa’s fascia

true pelvis muscles

1. obturator internus

2. piriformis

3. coccygeus

4. iliococcygeus

5. pubococcygeus

false pelvis muscles

1. quadratus lumborum

2. psoas major

3. iliacus

4. iliopsoas

what is within the peritoneal cavity

1. lesser and greater omentum

2. mesenteries

3. ligaments

4. multiple fluid spaces (lesser sac, perihepatic, and subphrenic spaces)

what smooth membrane lines the entire abdominal cavity and is reflected over the contained organs

peritoneum

what lines the wall of the peritoneal cavity

parietal peritoneum

what covers the abdominal organs to a greater or lesser extent in the peritoneal cavity

visceral peritoneum

what is the general peritoneal cavity known as

greater sac of the peritoneum

what is the peritoneal recess posterior to the stomach called

lesser sac (omental bursa)

the lesser sac (omental bursa) communicates with the greater sac through a small verticle opening known as what

epiploic foramen

in men the peritoneal cavity is ______

closed

in women the peritoneal cavity is ____

connected to the outside via uterine tubes, uterus, and vagina

the _____ is suspended from the posterior abdominal wall by mesentery

small intestine

the ___ is suspended from the posterior abdominal wall by the transverse mesocolon

transverse colon

the _____ is suspended from the posterior abdominal wall by the sigmoid mesocolon

sigmoid colon

subhepatic space is also called ______

morisons pouch

what acts as a sling for the stomach, suspending it from the liver

lesser omentum

what is the apronlike fold of peritoneum that hangs from the greater curvature of the stomach, lying freely over the intestine (except for the upper part which is fused with the transverse colon and mesocolon) called

greater omentum

the greater omentum is profusely supplied with blood by what vessels

epiploic branches of the gastroepiploic vessels

the ______ divides the subphrenic space into right and left components

falciform ligament

what seperates the posterior subphrenic space from morison’s pouch (rt superior subphrenic space)

right superior and inferior coronary ligaments

the lesser sac lies ____ to the pancreas and ____ to the stomach

anterior, posterior

what divides the retrovesical space into an anterior vesicouterine recess and a posterior rectouterine sac (pouch of douglas)

uterus

ascites displaces the distended urinary bladder ____

inferiorly (NOT posteriorly)

if there is a collections (bleeding, ruptured abscess, etc) subcapsular to the liver or spleen the collections _____

conform to the shape of the organ capsule

you can tell a collection is in the retroperitoneal cavity and not the peritoneal cavity by seeing _____ displacement of structures

anterior

what is a ligament

double fold of peritoneum

what connects the gastric greater curvature to the superior splenic hilum

gastrosplenic ligament

the gastrosplenic liagament forms a portion of the ____

left lateral border of the lesser sac

the gastrosplenic ligament is a left lateral extension of the ____

greater omentum

what forms the splenorenal ligament

posterior reflection of the peritoneum of the spleen

what forms the posterior portion of the left lateral border of the lesser sac

splenorenal ligament

what seperates the lesser sac from the renosplenic recess

splenorenal ligament