Anatomy Lecture 23_Abdominal Overview and Infrastructure

Question 1

What are the three Subdivisions of the Peritoneal Cavity around the liver?

Answer 1

see attached

Question 2

Define Intraperitoneal

Answer 2

This is a structure that envaginates the peritoneum (the fist in the ballon.

Question 3

what are the two segments of the Lesser Omentum?

Answer 3

See attached

Question 4

What is the main difference between Superior and Inferior Hypogastric Plexuses?

Answer 4

The Inferior hypogastric plexus contains parasympathetic innervation while the Superior hyopgastric plexus contains only viseral afferent and sympathetic.

Question 5

What is the Omental Foraman (foraman of Winslow)

Answer 5

It is the foraman that connects the greater Peritoneal sac to the lesser Peritoneal sac (Omental Bursa). The Omental Bursa is located posterior to the lesser omentum

Question 6

What provides blood supply to the hind gut?

Answer 6

Inferior mesenteric artery

Question 7

Describe Paracentesis & Peritoneal Dialysis

Answer 7

see attached

Question 8

What 6.5 structres compose the foregut and are supplied by the Celiac Trunk?

Answer 8

• Abdominal esophagus • Stomach • Proximal 1/2 duodenum • Pancreas • Liver & Gallbladder • Spleen* (not a gut derivative) (this is what I was calling .5)

Question 9

What provides blood supply to the mid gut

Answer 9

superior mesenteric artery

Question 10

What are the three abdominal ligaments of the diaphragm, what muscles cross under them

Answer 10

Psoas Major crosses behind the medial arcuate ligament and the quadratus lumborum crosses behind the lateral arcuate ligament

Question 11

What are the connections of the Quadratus lumborum, what is it’s inervation, and what is its movements?

Answer 11

See attached

Question 12

Define Peritonitis

Answer 12

infection in the peritoneal space

Question 13

What is the flow pattern of the abdominal aorta?

Answer 13

see attached

Question 14

What are the three main opening of the diaphragm (what level are they at)? What passes through them? How do they effect those structures?

Answer 14

see attached

Question 15

Define Peritoneal cavity

Answer 15

It is the fluid filled space between the Parietal peritoneum and the Visceral peritoneum

Question 16

What are the connections of the Psoas major, what is it’s inervation, and what is its movements?

Answer 16

See attached

Question 17

Define Ascites

Answer 17

It is the accumulation of fluid in the peritoneal space. It is charicterized by Distended abdomen and muscle rigidity, interferes with abdominothoracic
thoracic rhythm

Question 18

What are the two main devisions of the greater peritoneal sac?

Answer 18

Supra-colic & Infra-colic compartments (they are divided by the transverse colon)

Question 19

What is a Mesentery

Answer 19

see attached

Question 20

What provides blood supply to the foregut?

Answer 20

Celiac Trunk

Question 21

What are the connections of the Iliacus, what is it’s inervation, and what is its movements?

Answer 21

See attached

Question 22

Define Extraperitoneal

Answer 22

This is a structure that is outside the peritoneum. It has three sub classes: • Retroperitoneal - behind the peritoneum • Subperitoneal - below the peritoneum • Secondarily Retroperitoneal - Once was Intraperitoneal but through development got pushed out and became Extraperitoneal

Question 23

What are the three sections of the Greater Omentum? Where do they attach?

Answer 23

see attached