Abdomen 1 Flashcards
What are the greater and lesser sacs of the abdominal cavity? How do they communicate with one another?
subdivisions of abdominal cavity
- communicate via Epiploic Foramen (of Winslow)
What is the blood supply of the:
- Foregut
- Midgut
- Hindgut
- Foregut - Celiac Trunk (T12)
- Midgut - Superior mesenteric Artery (L1)
- Hindgut - Inferior Mesenteric Artery (L3)
What is the largest gland in the human body?
LIVER
What is the lymphoid organ related to hematopoiesis?
Spleen
A large tumor mass impinges on the splenic artery and its branches as the artery passes out from below the greater curvature of the stomach. Branches of which of the following arteries would most likely be affected by the pressure on the splenic artery?
A) Left gastric B) Left gastroepiploic (gastro-omental) C) Right gastric D) Right gastroepiploic E) Gastroduodenal
B) Gastro-epiploic (gastro-omental)
A 55-year-old woman comes to a local hospital with abdominal tenderness and acute pain. On examination, her physician observes that an abdominal infection has spread retroperitoneal. Which of the following structures is most likely affected ?
A) Transverse colon B) Ileum C) Spleen D) Stomach E) Ascending colon
E) Ascending Colon
SAD PUCKER!!!
The superior pancreatico -duodenal artery which supplies the first part of the duodenum arise from which of the following arteries?
A) Right colic B) Right Hepatic C) Splenic D) Gastro duodenal E) Superior mesenteric
D) Gastroduodenal
Which of the following ligaments enclose the portal triad?
Gastrocolic ligament Hepatoduodenal ligament Hepatorenal ligament Hepatogastric ligament Gastrosplenic ligament
Hepatoduodenal
What is the peritoneum? What is it divided into?
- Serrous membran w/ parietal and visceral layers
- serrous fluid in between
(like lungs & heart)
- Divided into LESSER & GREATER sac
What sac (lesser or greater) forms the omental bursa?
LESSER Sac
- forms lesser and greater omentum
Once you open the peritoneum in a cadaver, are you in the greater or lesser Sac?
GREATER Sac
- accounts for most of the space of the peritoneal cavity
Is the lesser or greater sac inside the greater omentum?
Lesser Sac
- behind the stomach
The lesser sac is a closed cavity in females. True or False.
FALSE
- open cavity for fallopian tube to open into peritoneal cavity
Where is the ventral mesentery found? What is suspended by the dorsal mesentery?
Ventral mesentery only at UMBILICUS
- Dorsal mesentary suspends the GUT
The ventral mesentery becomes what ligament?
Falciform Ligament of the Liver
What are the names of the peritoneal folds in the following structures:
- Stomach
- Small Intestine
- Large Intestine
- Organ as a liver or spleen
- Stomach –>Greater & lesser Omentum
- Small Intestine –> Mesentery
- Large Intestine –> Meso-colon
- Organ as a liver or spleen –> LIGAMENT
(falciform in liver)
What organs lie posterior to the visceral peritoneum (aka RETROPERITONEALLY)?
SAD PUCKER
Suprarenal Glands Aorta Duodenum ( 2nd & 3rd) Pancreas Ureter Colon (Ascending & Descending) Kidney Esophogus Rectum
What is the nerve supply to:
- Parietal Peritoneum
- Visceral Peritoneum
Does the visceral peritoneum feel pain?
- Somatic Nerves
- Autonomic
NO!
(visceral peritoneum doesn’t have somatic innervation –> only sensitive to stretch, tension, & ischemia)
The three arteries of the foregut, midgut, and hindgut are branches off of what?
Abdominal Aorta
- anterior surface
- all anastomose w/ each other
The following organs are a part of the foregut, midgut, or hindgut?
- Stomach
- Liver
- Gallbladder
- Pancreas
- Spleen
- 1st half of duodenum
FOREGUT
The following organs are a part of the foregut, midgut, or hindgut?
- Left 1/3 of transverse colon
- Descending Colon
- Sigmoid Colon
- Rectum
Hindgut
What are the 6 structures in the midgut?
- 2nd half of duodenum
- Jejunum
- Ileum
- Cecum
- Ascending Colon
- 2/3 of transverse colon
Which organs are only partially covered by peritoneum?
SAD PUCKER
Suprarenal Aorta Duodenum (2nd & 3rd part) Pancreas Ureter Colon (ascending/descending) Kidney Esophogus Rectum
The stomach loves 2’s
- 2 borders
- 2 sacs
- 2 surfaces
- 2 ends
- Greater & Lesser
- Greater & Lesser
- Anterior & Posterior
- Cardiac & Pyloric
The stomach is divided into what 4 parts?
- Cardiac
- Fundus
- Body
- Pylorus
What allow the stomach to dilate considerably?
the mucosa = RUGAE
What vessel supplies the stomach?
Celiac Trunk
The lesser or greater momentum forms the Ventral mesentery?
LESSER
- dorsal = GREATER omentum
What are the two ligaments of the stomach in the lesser omentum?
- Hepatogastric (connects liver to stomach)
2. Hepatoduodenum (connects liver to duodenum)
What are the 4 ligaments of the Greater momentum (dorsal mesentery)?
- Gastrosplenic
- Gastrophrenic
- Gastrocolic
- Lienorenal/ Splenorenal (spleen & kidney)
What functions as the policemen of the abdomen? WHY?
GREATER OMENTUM
- prevents the spread of infection
The liver is a development of foregut, midgut, or hindgut?
FOREGUT
What is the blood supply to the liver?
Hepatic Artery of the Celiac Trunk (25%) & Portal Vein (75%)
What is the only area of the liver not covered by peritoneum called?
BARE area
- at the Coronary Ligaments
What are the 5 ligaments (peritoneal folds) of the liver?
(4 to the diaphragm) Right Coronary Left Coronary Right Triangular Left Triangular
Falciform (1 to the abdominal wall)
When the stomach undergoes a 90 degree rotation, which Vagus Nerve (left or Right) is located behind the stomach?
Right Vagus is BEHIND
(in Vagus it is RIGHT to take from BEHIND)
- LEFT VAGUS in FRONT & RIGHT vagus BEHIND
What is the order of the following 3 Hepatic Structures found in the LESSER omentum?
- Hepatic Portal Vein
- Hepatic Artery
- Hepatic Duct
Portal vein Posterior
Hepatic duct Right
Hepatic artery Left
Where is the visceral surface of the liver located?
INFERIOR
What are the 5 FISSURES of the liver? (forming the H)
- Ligamentum Venosum (left)
- Ligamentum Teres (Round ligament) (left & lower)
- Porta Hepatis
- Gallbladder Fossa (right & lower)
- Inferior Vena Cava (right & higher)
What structure lies between the quadrate & caudate lobes?
Portus Hepatis
VAD - posterior to anterior
In the anatomical position, is the caudate & quadrate in the left or right robe?
RIGHT lobe
What forms the line for the FUNCTIONAL position? What is this division based on?
- Superior Vena Cava & Gallbladder Fossa
- based on BLOOD SUPPLY
What is the blood supply to the liver?
Hepatic Proper & Portal Vein
caudate & quadrate supplied by LEFT Hepatic Artery
What is the path of venous drainage to the IVC?
Blood sinusoids –> Central Veins –> Hepatic Veins –> Inferior Vena Cava
Where is the sphincter of ODDI found?
At the lower end of bile duct, pancreatic duct & ampulla
What are the 3 parts of the gallbladder?
- Fundus
- Body
- Neck
At what meeting point is the FUNDUS of the liver found at?
right Linea Semilunaris & 9th costal cartilage
What is a common site of gall bladder stones in the liver?
Hartmann’s Pouch
The celiac trunk is found at what thoracic level?
T12
What artery supplies the esophagus & stomach? Where does it anastomose?
Left gastric
- anastomoses with Right gastric at the LESSER curvature of stomach
Where does the SPLENIC artery end?
Lienorenal Ligament (splenorenal)
Where do the left & right gastro-omental (gastroepiploic) arteries anastomose with one another?
Great Curvature of the stomach
What are the two surfaces of the spleen?
- Diaphragmatic (separate from left lung & 9,10,11 ribs)
2. Visceral (hilum)
What artery supplies the spleen?
SPLENIC of the celiac trunk
What two vessels supply a DOUBLE blood influx to the liver?
Hepatic artery (25% ) Portal vein (75%)
- both 50% oxygen
If there is trauma & a rib is broken, which organ will most likely be affected? What will it cause?
spleen
- will cause SEVERE bleeding
- hemopoetic organ (makes RBC) = severe bleeding***** need splenectomy
What is the ligament that connects the liver to the abdominal wall?
Falciform Ligament
What is the name of the ligament that is the obliterated umbilical vein?
Ligamentum Teres
Which lobe has a small “head” like structure that appears in the hilum of the liver?
Caudate Lobe
What vein does the Superior Mesenteric VEIN meet at the pancreas? (behind the stomach)
SPLENIC vein
What part of the stomach has the sphincter/valve like action?
Pylorus
Which organ is “gland” like?
PANCREAS
Which part of the duodenum is intraperitoneal?
FIRST PART ONLY*
The ______ comes off of the Cecum
APPENDIX
What is the lowest part of the gall bladder called?
FUNDUS
What structure connects the greater & lesser sacs?
EPIPLOIC FORAMEN
Where does the main pancreatic duct & common bile duct drain? (which part)
Ampulla of Vater
- 2nd part of DUODENUM
Once we open the abdomen we are in the ______ sac.
GREATER SAC
The spleen is found posteriorly at what ribs?
9,10,11