External and Internal Features of the Abdomen

Question 1

Topographical sections of cranial abdominal region

Answer 1

Left and right hypochondriac region

xiphoid region

Question 2

Topographical sections of the middle abdominal region

Answer 2

left and right lateral regions

umbilical region

Question 3

Topographical sections of the caudal abdominal region

Answer 3

left and right inguinal regions

pubic region

Question 4

The arteries that supply the superficial part of the ventral abdominal wall are branches of the ______________.

Answer 4

superficial epigastric arteries

Question 5

Which artery emerges from the superficial inguinal ring?

What are its parent and grandparent vessels?

Answer 5

external pudendal

pudendoepigastric trunk;

a branch of the deep femoral artery

Question 6

Emerging from the dorsolateral abdominal wall, caudal to the last rib, are superficial branches of the

Answer 6

cranial abdominal artery

Question 7

Which arteries supply the following regions of the abdominal wall:

craniodorsal, cranioventral, caudoventral, caudodorsal

Answer 7

craniodorsal - cranial abdominal artery

cranioventral - cranial epigastric artery

caudoventral - caudal epigastric artery

caudodorsal - deep circumflex iliac artery

Question 8

drains the mammae, prepuce, scrotum, and ventral abdominal wall as far cranially as the umbilicus

Answer 8

superficial inguinal lymph nodes

Question 9

most of the afferent lymph vessels of the thoracic wall and deep structures of the limb drain into this node

Answer 9

axillary lymph nodes

Question 10

ventral branch of L1; has medial and lateral branches

Answer 10

cranial iliohypogastric nerve

Question 11

ventral branch of L2; has medial and lateral branches

Answer 11

caudal iliohypogastric nerve

Question 12

ventral branch of L3; medial and lateral branches

Answer 12

ilioinguinal nerve

Question 13

ventral branch of L4

Answer 13

lateral cutaneous femoral nerve

Question 14

formed by ventral branches of L3 and L4

Answer 14

genitofemoral nerve

Question 15

connective tissue layer that is located between the mesothelium (peritoneum) and the muscular walls of the abdominal cavity and the organs

Answer 15

transversalis fascia

Question 16

double layer of peritoneum extending from the body wall to the organs within the abdominal and pelvic cavities

Answer 16

connecting peritoneum / mesentery or “meso-”

Question 17

fat-filled remnant of ventral mesentery that extends cranially from the umbilicus to the diaphragm; contained the umbilical vein in the fetus

Answer 17

falciform ligament

Question 18

remnant of the fetal umbilical vein; thickened ridge of the falciform ligament that extends cranially from the umbilicus to the liver where it disappears between the left medial and quadrate lobes of the liver

Answer 18

round ligament of the liver

Question 19

remnant of ventral mesentery that contained the urachus and umbilical arteries in the fetus; extends caudally from the umbilicus to the ventral aspect of the bladder

Answer 19

median ligament of the bladder

Question 20

ring-like internal region where the peritoneum extends into the inguinal canal

Answer 20

vaginal ring

Question 21

The greater omentum is a dorsal mesentery that covers over, and often becomes entangled with, the ­­­­­___________ and ________; attaches to the dorsal body wall and to the _______________________; has superficial and deep leaves

Answer 21

jejunum and ilieum

greater curvature of the stomach

Question 22

The superficial leaf of the greater omentum encompases the _______ on the left side

Answer 22

spleen

Question 23

The deep leaf of the greater omentum is adjacent to the abdominal organs and attaches to the dorsal body wall; encompasses the ____________________

Answer 23

left lobe of the pancrease dorsally

Question 24

Enclosed space between the superficial and deep leaves of the greater omentum.

Through what can one gain access to this space?

Answer 24

omental bursa

epiploic foramen

Question 25

What contains the right lobe of the pancreas?

Answer 25

Mesoduodenum