Ruminant Abdomen Flashcards

1
Q

What is a ruminant?

A

Ruminants

  • mammals that convert plant complex carbs into fatty acids and sugars via bacterial fermentation (symbiosis)
  • microbes synth vitamins and recycle nitrogen into proteins
  • cattle, goat, sheep, yaks, deer, camels, llamas, antelope
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2
Q

Cow Stomach

A

Note: 3 forestomaches and only one true stomach (abomasum)

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3
Q

orientation and size of abdominal viscera varies with age and pregnancy. Identify and explain the images

A
  • A= Calf
    • large liver and abomasum
    • important in milk digestion ^
  • B= mature cow
    • rumen is large and occupies left side of abdomen
    • liver cranial
  • C= pregnant cow
    • uterus displaces rumen dorsally and abomasum cranially
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4
Q
A
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5
Q
A
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6
Q

identify quadrants and view

A
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7
Q

four strata of ingesta in the rumen

A
  • dorsal most layer forms gas bubble
  • ventral most layer is a liquid zone
  • variation in papilla within different compartments of the rumen (larger ventrally)
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8
Q

Traumatic reticulitis

A

Traumatic reticulitis= hardware disease

  • metal in the reticulum
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9
Q

talk about the reticular groove

A
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10
Q

sequence of flow when closed vs. open

A
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11
Q

Whats this?

A

Omasum

  • has numerous folds= Laminae
    • interlaminar recesses
  • omasal groove
  • omasoabomasal orifice
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12
Q

whats this?

A
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13
Q

Lable

A
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14
Q

Identify

A
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15
Q

Borders of paralumbar fossa

A

** note that most stomach compartments are located deep to the ribs!!!

Clinically you can use the left paralumbar fossa to access the rumen and reticulum—> can feel for hardware disease!

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16
Q

whyd he say these red and blue lines are important?

A
17
Q

Identify 5, 6, 7

A
18
Q

blood supply return to this**

A

*** return to this

  • splenic artery
    • right ruminal artery
    • left ruminal artery
      *
19
Q

Innervation of ruminant stomach

A
20
Q

ruminant small intestine

A

small intestine

  • duodenum- yellow
  • jejunum- *** ahhhh go back and learn
21
Q

where does blood supply originate for ruminant centripetal gyri?

A

ileocolic- colic branch

**centrofugal = richt colic artery