Lecture 38 - Abdominal Cavity

Question 1

What are the 3 regions of the abdominal cavity

Answer 1

1. cranial
2. middle
3. caudal

Question 2

what are the boundaries of the cranial abdominal cavity

Answer 2

diaphragm to the level of the caudal costal arch

Question 3

what are the boundaries of the middle abdominal cavity

Answer 3

caudal costal arch to the level of the tuber coxae

Question 4

what are the boundaries of the caudal abdominal cavity

Answer 4

tuber coxae to the brim of the pelvis/pubis

Question 5

what are the boundaries of the abdominal cavity

Answer 5

cranial: diaphragm
caudal: pelvic inlet
dorsal: lumbar vertebrae and hypaxial mm.
ventral: abdominal wall mm.

Question 6

what are the 3 locations of openings to the abdominal cavity

Answer 6

1. diaphragm
2. abdominal wall
3. pelvic inlet

Question 7

what are the openings located in the diaphragm

Answer 7

1. aortic hiatus
2. esophageal hiatus
3. caval foramen

Question 8

what are the openings located in the abdominal wall

Answer 8

1. inguinal canal
2. vascular lacuna

Question 9

what passes through the aortic hiatus

Answer 9

1. aorta
2. azygous v.
3. thoracic duct

Question 10

what passes through the esophageal hiatus

Answer 10

1. esophagus
2. ventral and dorsal vagal trunks

Question 11

what passes through the caval foramen

Answer 11

caudal vena cava

Question 12

describe the inguinal canal

Answer 12

fissures between the abdominal mm. and their aponeuroses present left/right and in both sexes

deep and superficial inguinal rings

Question 13

what passes through the inguinal canals

Answer 13

1. external pudendal a./v.
2. genitofemoral n.
3. spermatic cord (males)
4. vaginal processes (female)

Question 14

what passes through the vascular lacuna

Answer 14

femoral a./v.

Question 15

what passes through the muscular lacuna

Answer 15

iliopsoas m. and femoral n.

Question 16

what separates the vascular and muscular lacuna from the superficial inguinal ring

Answer 16

inguinal ligament

Question 17

what are the boundaries of the pelvic inlet

Answer 17

dorsal: promontory + wings of sacrum
ventral: pubis
lateral: body of ilium

Question 18

what is the peritoneum

Answer 18

serous membrane of the abdominal cavity

Question 19

describe connecting peritoneum

Answer 19

double fold in the peritoneum connecting organ to body wall/organs

Question 20

mesentery connects

Answer 20

organ to body wall

intestines to abdominal wall

Question 21

ligament connects

Answer 21

organ to body wall or organ

Question 22

fold connects

Answer 22

organ to organ

Question 23

omentum connects

Answer 23

stomach to body wall

Question 24

T/F: connecting peritoneum has 2 serous membrane layers

Answer 24

TRUE

Question 25

greater omentum

Answer 25

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

Question 26

lesser omentum

Answer 26

lesser curvature of stomach and duodenum to liver contains hepatic a. and portal v.

Question 27

omental bursa

Answer 27

potential space enclosed by omenta, stomach, and liver sub-part of peritoneal cavity accessed by epiploic foramen

Question 28

falciform ligament

Answer 28

liver to ventral body wall from the diaphragm causally to the umbilicus contains remnants of umbilical v.

Question 29

duodenocolic fold

Answer 29

peritoneum between ascending duodenum and descending colon

Question 30

ileocecal fold

Answer 30

peritoneum between cecum and distal ileum