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
2
Q
Cow Stomach
A
Note: 3 forestomaches and only one true stomach (abomasum)
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
4
Q
A
5
Q
A
6
Q
identify quadrants and view
A
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)
8
Q
Traumatic reticulitis
A
Traumatic reticulitis= hardware disease
- metal in the reticulum
9
Q
talk about the reticular groove
A
10
Q
sequence of flow when closed vs. open
A
11
Q
Whats this?
A
Omasum
- has numerous folds= Laminae
- interlaminar recesses
- omasal groove
- omasoabomasal orifice
12
Q
whats this?
A
13
Q
Lable
A
14
Q
Identify
A
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!