Lab 5: Abdomen Flashcards Preview

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Flashcards in Lab 5: Abdomen Deck (33):
0

name the opening the esophagus passes through in the diaphragm

esophageal hiatus

1

3 tubular structures entering the ventro-medial (visceral) surface of the liver. Which will have the widest lumen?

hepatic artery, portal vein, bile duct. Portal vein has widest lumen

2

Does horse have a gall bladder?

NO

3

Which organs/structures leave impressions on the liver? (6)

stomach, esophagus, descending duodenum, R kidney, caudal vena cava, R dorsal ascending colon

4

Compare the epithelium of the blind sac of the stomach vs. the distal stomach

blind sac: whitish, non-glandular, stratified squamous epithelium
distal stomach: pink, glandular

5

Border between blind sac and distal stomach

margo plicatus

6

what prevents the horse from vomiting?

the thick cardiac sphincter. Horse can only vomit in severe cases

7

What drains into the major duodenal papilla in the horse?

Bile duct and pancreatic duct

8

What drains into the minor duodenal papilla in the horse?

Accessory pancreatic duct

9

What part of colon passes cranial to the root of the mesentery?

transverse colon

10

From what side does ileum enter the cecum?

from the medial side

11

What direction does the cecocolic orifice face?

caudally into the R ventral colon

12

Why is it important to know pattern of bands and sacculations in the horse?

For identification in abdominal surgery and rectal palpation

13

Which segment(s) of the colon have distinct sacculations?

R ventral colon, L ventral colon, small colon

14

Which segment(s) of the colon have no sacculations?

L dorsal colon

15

Which segment(s) of the colon have indistinct sacculations?

R dorsal colon

16

How many free and hidden bands does the R ventral colon have?

2 free, 2 hidden (same as the L ventral colon)

17

How many free and hidden bands does the R dorsal colon have?

2 free, 1 hidden

18

How many free and hidden bands does the L dorsal colon have?

0 free, 1 hidden

19

How many free and hidden bands does the L ventral colon have?

2 free, 2 hidden. (same as R ventral colon)

20

How many free and hidden bands does the small colon have?

1 free, 1 hidden

21

Does the cecum have bands and/or sacculations?

Yes-both

22

What does the colic branch of the ileocolic artery supply?

ventral coli

23

What does the R colic a. supply?

dorsal coli

24

Where doe the colic br. of ileocolic a. and R colic a. anastomose?

pelvic flexure

25

Why are colic conditions exacerbated by ischemia at the pelvic flexure?

This is the location where the R colic a. and colic br. of the ileocolic a. anastomose and end, so it is more susceptible to ischemia

26

What is the peritoneal cavity lined by?

parietal peritoneum

27

What muscle lies directly ventral to the parietal peritoneum, fascia, and fat?

Rectus abdominis

28

How many lumbar vertebrae are normally in the horse? What about Arabians?

6 normally, Arabians usually have 5

29

How many bones fuse to form sacrum in horse?

5 sacral vertebrae

31

Avg. number of caudal (coccygeal) vertebrae in horse

18

32

whats another term for sacculations?

haustra

33

what is another term for the longitudinal smooth muscle bands located on the large and small colon?

teniae coli

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