Biol 2325: Abdomen pt 2(Abdominal cavity organs and vessels)

Peritoneum

Double-layered membrane surrounding the abdominal organs

Parietal peritoneum

the OUTER layer of the peritoneum that lines the interior of the abdominal wall

Visceral peritoneum

the INNER layer of the peritoneum that surrounds the ORGANS of the abdominal cavity

Mesentary

supportive membrane surrounding internal organs and attaching to the body wall

Tissue of the peritoneal

Mesothelium

Peritoneal viscera/ intraperitoneal viscera

Organs that are suspended by a mesentary

Primary retroperitoneal organs

Organs that NEVER had mesentery

Secondary retroperitoneal organs

Organs that one had a mesentery in the embryo, but lost it and became retroperitoneal

Mnemonic for the primary and secondary retroperitoneal organs.

SAD PUCKER:

- Suprarenal (adrenal) glands

- Aorta and IVC

- Duodenum (2nd through 4th parts)

- Pancreas (except tail)

- Ureters

- Colon (descending and ascending)

- Kidneys

- Esophagus (thoracic portion)

- Rectum (partially)

Are the adrenal glands peritoneal, primary retroperitoneal or secondary retroperitoneal?

Primary retroperitoneal

Kidneys: peritoneal, primary retroperitoneal or secondary retroperitoneal?

Primary retroperitoneal

Ureters: peritoneal, primary retroperitoneal or secondary retroperitoneal?

Primary retroperitoneal

Abdominal aorta: peritoneal, primary retroperitoneal or secondary retroperitoneal?

Primary retroperitoneal

Rectum: peritoneal, primary retroperitoneal or secondary retroperitoneal?

Secondary retroperitoneal

Liver: peritoneal, primary retroperitoneal or secondary retroperitoneal?

Peritoneal

Stomach: peritoneal, primary retroperitoneal or secondary retroperitoneal?

Peritoneal

Spleen: peritoneal, primary retroperitoneal or secondary retroperitoneal?

Peritoneal

Transverse colon: peritoneal, primary retroperitoneal or secondary retroperitoneal?

Peritoneal

Jejunum: peritoneal, primary retroperitoneal or secondary retroperitoneal?

Peritoneal

Ileum: peritoneal, primary retroperitoneal or secondary retroperitoneal?

Peritoneal

Cecum: peritoneal, primary retroperitoneal or secondary retroperitoneal?

Peritoneal

Duodenum: peritoneal, primary retroperitoneal or secondary retroperitoneal?

Secondary retroperitoneal

Pancrease: peritoneal, primary retroperitoneal or secondary retroperitoneal?

Secondary retroperitoneal

Ascending colon:peritoneal, primary retroperitoneal or secondary retroperitoneal?

Secondary retroperitoneal

Descending colon: peritoneal, primary retroperitoneal or secondary retroperitoneal?

Secondary retroperitoneal

Vermiform appendix: peritoneal, primary retroperitoneal or secondary retroperitoneal?

Peritoneal

Greater omentum

Medentary structure on the greater curvature of the stomach

What does the greater omentum connect?

Connects visceral membrane to visceral membrane

Lesser omentum

Mesentary structure attached to the lesser curvature of the stomach

Lesser omentum (front view)

Lesser sac

peritoneal pouch located behind the lesser omentum and stomach

Greater sac

peritoneal pouch located in front of the lesser omentum, greater omentum, and stomach

Mesentary(side view)

celiac trunk

part of the abdominal aorta where arteries branch off to take blood to the foregut

Foregut

esophagus, stomach, duodenum

What does the celiac trunk supply?

The embryonic foregut

Superior mesentaric artery

the second branch off the anterior of the descending abdominal

What does the superior mesentary artery supply?

Embryonic midgut

Midgut

Jejunum to transverse colon

Inferior mesenteric artery

What does the inferior mesentaric artery supply!

Embryonic hindgut

Hindgut

Descending colon, sigmoid colon, rectum

Renal arteries

Gonadal arteries

supply the gonads with blood

What is the name for the gonadal arteries in males?

"testicular artery"

What is the name of the gonadal arteries in females

Ovarian artery

Left gastric artery

artery that leads from the celiac trunk to the stomach (on the left)

Splenic artery

Artery that leads from the celiac trunk to the spleen

What are the three branches from the celiac trunk

Left gastric artery, splenic artery, hepatic artery

Hepatic artery

Artery than is a from the celiac trunk going to the liver

Adoral esophageal artery

Branch from the left gastric artery that wraps around the base of the esophagus

Adoral

toward the mouth

Aboral

Away from the moutn

Aboral left gastric artery

Branch from left gastric artery that goes along the lesser curvature of the stomach

Adoral short gastric artery

Distal branch from the splenic artery that goes along the top of the stomach

Aboral Left Gastro-omental artery

Inferior branch from the splenic artery that goes along the greater curvature of the stomach

Adoral right gastric artery

Proximal branch off the hepatic artery that wraps along the lesser curvature of the stomach (going toward the mouth)

Aboral Gastroduodenal artery

Branch off the hepatic artery that goes behind the duodenum to the pancrease

What does the gastoduodenal artery supply?

The duodenum, the pylorus, and the head of the pancreas

Aboral Pancreaticoduodenal Artery

The end branch from the aboral gastroduodenal artery that goes to the pancreas

Hepatic veins

carry blood from the liver to the inferior vena cava

Right gonadal vein

Gonadal vein that drains directly into the inferior vena cava

Left gonadal vein

Gonadal vein that drains into the left renal vein, which then goes to the inferior vena cava

Portal system

When there is a series of capilares that go into another set of capillaries

Hepatic portal system

the veins that carry blood from the capillaries digestive organs to the liver

Where do all veins from the digestive system go?

To the hepatic portal vein

Hepatic sinusoids

vascular channels of the liver that receive nutrient rich blood from the hepatic portal vein

Left gastric vein

Drains the lesser curvature of the stomach directly into the hepatic portal vein

Right gastric vein

drains blood from the lesser curvature of the stomach into the hepatic portal vein; forms a loop with the left gastric vein

Splenic vein

drains the spleen, pancreas, and stomach

Where does the splenic vein drain into?

hepatic portal vein

Inferior mesenteric vein

Vein that drains the large intestine into thr splenic vein

What nutrient is moslty going into the inferior mesenteric vein?

Water

left gastro-omental vein

Runs along the greater curvature of the stomach and drains blood into the splenic vein

Right gastro-omental vein

drains blood from the greater curvature of the stomach into the superior mesenteric vein

What parasympathetic nerve innvervates the midgut

Vagus nerve

What parasympathetic nerve innervates the hindgut?

Pelvic splan