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Gross Anatomy 1 > Abdominal Cavity Part 2 > Flashcards

Abdominal Cavity Part 2 Flashcards

1
Q

Parts of the Small Intestine

A
  • duodenum
  • jejunum
  • ileum
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2
Q

Parts of the Large Intestine

A
  • cecum
  • colon
  • rectum
  • anal canal
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3
Q

stomach (gaster)

A

sac-shaped enlargement of the alimentary canal between esophagus and the duodenum

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4
Q

Location of the stomach?

A

left cranial quadrant, caudal to liver

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5
Q

Location of empty stomach?

A
  • intrathoracic part of abdominal cavity
  • separated from the abdominal wall
  • CAN’T PALPATE
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6
Q

Location of a moderately full stomach?

A
  • T9 - T12
  • Contact with the abdominal wall
  • Palpable
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7
Q

Location of a greatly distended stomach?

A
  • T9-L2 or L3
  • extends into the caudal abdominal quadrants
  • extensive contact with the abdominal wall
  • easily palpable
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8
Q

Regions of Stomach

A
  • cardiac portion = surrounds the cardiac opening
  • fundus = blind sac dorsal to the cardia
  • body = middle portion between fundus and pyloric portion
  • pyloric portion
  • pyloric antrum - thin-walled, wider proximal part
  • pyloric canal - thick-walled, narrower distal part
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9
Q

Curvatures of the stomach

A

Greater Curvature
-convex ventral border extending from the cardia to the pylorus (long way)

Lesser Curvature
-concave dorsal border extending from the cardia to the pylorus (short way)

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10
Q

Openings of the stomach

A
  • cardiac ostium (cardia) - inlet -controlled by cardiac sphincter
  • pyloric ostium (pylorus) - outlet - controlled by the pyloric sphincter
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11
Q

Notches of the stomach

A
  • cardiac notch -between the cardia and the fundus

- angular notch - lower part of the lesser curvature

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12
Q

Hepatogastric ligament

A

from liver to lesser curvature of stomach

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13
Q

Gastrosplenic ligament

A

greater curvature of the stomach to the spleen

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14
Q

gastrophrenic ligament

A

from esophageal hiatus to the cardia of stomach

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15
Q

Cranial doudenal flexure

A
  • right cranial quadrant

- hepatoduodenal ligament (part of lesser omentum)

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16
Q

Duodenojejunal flexure

A
  • left side of the root of the mesentery

- continued by the jejunum

17
Q

Ascending duodenum

A
  • left caudal quadrant to left cranial quadrant
  • duodenocolic fold (ascending duodenum-descending (meso) colon)
  • duodenal fossa - cranially, at the level of the duodenojejunal
18
Q

Caudal duodenal flexure (transverse part)

A
  • right caudal quadrant to left caudal quadrant

- caudal to the root of the mesentery

19
Q

Descending duodenum

A
  • right cranial quadrant to the right caudal quadrant
  • lies directly against the right dorsolateral abdominal wall
  • mesoduodenum - right lobe of the pancreas
20
Q

Jejunum

A
  • longest part of the small intestine
  • nearly equally distributed in all quadrants
  • covered by the greater omentum
  • suspended by the mesojejunum
  • lies against the ventral and lateral abdominal wall
21
Q

Ileum

A
  • short terminal segment of the small intestine
  • caudal to the root of mesentery
  • runs left caudal quadrant to right caudal quadrant (usually)
  • length determined by the extent of the antimesenteric ileal artery (and the ileocecal fold)
  • ileocolic orifice (ileal orifice) -surrounded by ileal papilla and leads to the ascending colon
22
Q

Cecum

A
  • shot, initial blind-ending part of the large intestine
  • right caudal/cranial quadrant
  • ileoceal fold (attached to the ileum)
  • cecocolic orifice to the colon
  • does NOT communicate with the ileum directly
  • vermiform appendix NOT present in dogs
23
Q

Where is the whipworms’ favorite place to reside in the dog?

A

cecum

24
Q

Ascending colon

A
  • right caudal quadrant to right cranial quadrant

- shortest portion of the colon

25
Q

right colic flexure

A

right cranial quadrant

26
Q

transverse colon

A
  • cranial to the root of the mesentery

- right cranial quadrant to left cranial quadrant

27
Q

left colic flexure

A

left cranial quadrant

28
Q

descending colon

A
  • left cranial quadrant to left caudal quadrant
  • longest portion of the colon
  • duodenocolic fold (-> ascending duodenum)
29
Q

Cranial portion of Rectum

A
  • begins at pelvic inlet
  • located in the pararectal fossa
  • covered by peritoneum
  • suspended by mesorectum
30
Q

Caudal portion of Rectum

A
  • caudal to pararectal fossa
  • retroperitoneal
  • rectal ampulla (dilatation of the rectum)
31
Q

Anal Canal

A

-very short, terminal portion of the alimentary canal

Parts

  • columnar zone (cranial part)
  • intermediate zone (middle part)
  • cutaneous zone (caudal part)
32
Q

Columnar zone (cranial part) of anal canal

A
  • anorectal line
  • anal collums - longitudinal folds
  • anal sinus - grooves
33
Q

Intermediate zone (middle part) of anal canal

A

anocutaneous line

34
Q

Cutaneous zone (caudal part) of anal canal

A
  • circumanal glands open into the outer part

- anal sacs open into the inner part

35
Q

T/F: There are segments of the GI tract that run in a diagonal manner between quadrants

A

False.

No segment runs diagonally between quadrants

Gross Anatomy 1 (20 decks)

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