Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Large Animal Anatomy > Ruminant Stomach (Exam 2) > Flashcards

Ruminant Stomach (Exam 2) Flashcards

1
Q

Polygastric vs monogastric

A

poly: 4 compartments (ruminant)
mono: 1 compartment (cat/dog/horse)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

3 compartments of forestomach

A

rumen
reticulum
omasum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Another name for forestomach (ruminants)

A

proventriculus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Purpose of keratinized stratified squamous epithelium in forestomach (ruminant)

A

protection against ingestion of coarse vegetation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Forestomach can hold up to ____ gallons and ___ takes up lots of space in the rumen.

A

50-55
gas

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

The close relationship between the rumen and reticulum is called:

A

ruminoreticulum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Ruminoreticulum occupies entire (left/right) side of the abdominal cavity in ruminants along with what other structure?

A

left
spleen

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Rumen pushes _____ to the midline or right side of the abdominal cavity.

A

left kidney (“hangs” but Renal A/V)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Left surface of the rumen against abdominal wall

A

parietal surface

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Right surface of rumen contacting most intestines

A

visceral surface

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Which rumen groove does NOT correspond to pillar? What does it correspond to?

A

ruminoreticular groove
ruminoreticular fold

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Which rumen grooves extend dorsally and ventrally and create a circular area interiorly?

A

coronary grooves

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

_____ are on the outside of the rumen, while _____ correspond internally.

A

grooves
pillars

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Internal thickenings of wall internal to grooves

A

pillars

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Which pillar delineated the insula ruminis?

A

accessory pillar

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What structures are delineated by cranial and caudal pillars of the rumen?

A

dorsal sac + ventral sac

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What are the 2 major parts of the rumen?

A

dorsal sac + ventral sac

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What is delineated by dorsal coronary pillars (L+R) internally and continuous with caudal pillars?

A

caudodorsal blind sac

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

“Pouch” or “space” of rumen that’s not part of the dorsal sac and develops from another out-pocketing in the embryo

A

atrium ruminis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Atrium ruminis is part of the rumen between what 2 structures?

A

dorsal sac + reticulum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Internally, the atrium ruminis is bounded by _____ of the rumen and _____.

A

cranial pillar
ruminoreticular fold

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Term for the deep cranial end of the ventral sac of the rumen

A

recessus ruminis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Caudoventral blind sac is delineated by _______ and ______.

A

caudal pillar
ventral coronary pillars (L+R)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Term for opening of cranial sac –> reticulum

A

ruminoreticular ostium

25
Q

Opening between dorsal + ventral sac internally (delineated by pillars)

A

intraruminal ostium

26
Q

Projections of mucosa in rumen are ____ and are prominent where? NOT prominent where?

A

papillae
ventral sac + atrium ruminis
dorsal sac - “cap” of gas

27
Q

Function of papillae

A

absorption

28
Q

Function of Reticulum

A

pass small enough particles –> omasum

29
Q

Reticulum is right against the caudal surface of ______.

A

diaphragm (cupula)

30
Q

Reticulum is from ~__ rib –> ~__ rib.

A

6th –> 8th

31
Q

The reticulum is caudal to what organ? Clinical significance?

A

heart
“hardware disease”

32
Q

Which forestomach compartment has opening of the esophagus?

A

reticulum

33
Q

Term for opening of esophagus –> stomach

A

cardiac ostium

34
Q

Groove connecting opening of reticulum (ventral from cardiac ostium)

A

reticular groove

35
Q

Opening from reticulum –> omasum

A

reticulo-omasal ostium

36
Q

Clinical significance of reticulo-osmasal ostium

A

calf eats milk right away and non-glandular part underdeveloped
“lips” contract to get milk from omasum –> abomasum quickly

37
Q

What gives the reticulum its name?

A

cells in tunica mucosa (reticular cells)

38
Q

Reticular cells in the reticulum are delineated by larger projections of thick mucosal folds called ______.

A

reticular crests

39
Q

Omasum is on the (right/left) and between ribs __ and __.

A

right
8 & 11

40
Q

Omasum is very (moist/dry). Why?

A

dry - laminae absorb water/ions

41
Q

Short groove from reticulum –> omasum w/o laminae

A

omasal groove

42
Q

Opening where milk is shunted directly through in calves

A

omasoabomasal ostium

43
Q

Thickened tissue at the omasoabomasal ostium

A

omasal pillar

44
Q

Omasum have ___ layer(s) of smooth muscle in each ____.

A

3
laminae

45
Q

____ are large folds of mucosa in the fundus/body of the abomasum.

A

spiral folds

46
Q

What is the term for combination of reticular, omasal, and abomasal grooves?

A

gastric groove

47
Q

What is the subtle depression on interior of lesser curvature of abomasum where spiral folds begin?

A

abomasal groove

48
Q

Ligament of lesser omentum that attaches abomasum –> liver

A

hepatogastric ligament

49
Q

Ligament of lesser omentum that attaches cranial part of duodenum –> liver

A

hepatoduodenal ligament

50
Q

What is the only difference between the lesser omentum in small animals?

A

longer distance to get to stomach

51
Q

Which groove of the rumen attaches to superficial wall of greater omentum?

A

left longitudinal groove

52
Q

Which groove of the rumen attaches to the deep wall of the greater omentum?

A

right longitudinal groove

53
Q

Greater omentum splits into 2 layers:

A

superficial + deep layers

54
Q

Superficial + deep layers of greater omentum come together (ventrally/dorsally) and attach to _____.

A

dorsally
descending duodenum

55
Q

Peritoneal cavity above reflection of greater omentum where intestines are located

A

supraomental recess

56
Q

In ruminants, the left gastroepiploic A comes off the _____ A.

A

left gastric A

57
Q

Right + Left Ruminal Aa come off ____ A.

A

splenic

58
Q

______ A branches into the reticular A in the _______.

A

left ruminal A
ruminoreticular groove

Large Animal Anatomy (41 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions