Abdominal Organs I Flashcards Preview

MSS - GI Exam 1 > Abdominal Organs I > Flashcards

Flashcards in Abdominal Organs I Deck (45)
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1

esophagus

long muscular tube that transports food
-pharynx to stomach

passes diaphragm at TV10 and enters stomach at TV11

2

esophageal diaphragmatic hiatus

TV10
-where esophagus enters abdomen

3

phrenicoesophageal ligaments

attach diaphragm to esophagus
-allow for independent movement
-prevent herniation of esophagus into thorax

superior and inferior portions

4

mesoesophagus

mesentery of esophagus

only associated with abdominal portion of esophagus

5

z-line

stratified squamous to the tall columnar epithelium from esophagus to stomach

6

constrictions of esophagus

cervical
thoracic
diaphragmatic

7

cervical constriction

of esophagus
-due to cricopharyngeus muscle

8

thoracic constriction

of esophagus
-due to arch of aorta and left primary bronchus

9

diaphragmatic constriction

of esophagus
-due to diaphragm
-forms physiological inferior esophageal sphincter
-prevents reflux of food and acid to esophagus

10

esophageal varices

porto-caval anastomisis pathology
-portal HTN causes backflow
-large dilated beins in the esophagus

can rupture and bleed heavliy

11

artery to esophagus

left gastric artery

12

veins of esophagus

left gastric vein

13

lymph drainage of esophagus

left gastric lymph nodes to celiac lymph nodes

14

hiatal hernias

herniation of esophagus or stomach through esophageal hiatus at diaphram

15

paraesophageal

FUNDUS of stomach heriates through esophageal hiatus anteiror to esophagus
-fundus of stomach may strangulate

16

sliding

weakening of phrenicoesophageal ligaments allowing CARDIAC region of stomach to herniate into thorax

17

stomach

accumulates and enzymatically digests food materials
-usually J shaped and in left upper quadrant (this is variable)

breaks food into chyme that is moved into small intestine

18

peritoneum of stomach?

fully peritonealized

lesser curvature - lesser omentum
-hepatoduodenal and hepatogastric ligaments

greater curvature - greater omentum

19

regions of stomach

cardiac - receives esophagus (sliding hernia)
fundus - just under diaphragm (paraesophageal heria)
body - largest portion
pyloric - antrum to canal - to sphincter

lesser curvature
greater curvature

20

stomach bed

lie posterior and inferior to stomach
diaphragm
spleen
left kidney and suprarenal gland
pancreas
transverse colon and transverse mesocolon

21

external features

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28

layers of stomach wall

serosa (outer)

muscular
-inner circular
-outer longitudinal

mucosa (inner)
-folds called region
-different areas of stomach have very different mucosa

29

stomach artery supply

receives blood supply from all three celiac trunk branches

30

lesser curvature

gastric arch of arteries

right and left gastric arteries
-right is branch of proper hepatic artery
-left is direct branch of celiac trunk