Brainscape's Knowledge GenomeTM

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


See full index

Animal Health Science 1 > Large animal digestive tract AHS1 > Flashcards

Large animal digestive tract AHS1 Flashcards

You may prefer our related Brainscape-certified flashcards:
Biology 101 flashcards
1
Q

What are the 4 main parts of the ruminant stomach?

A

Rumen
Reticulum
Omasum
Abomasum

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

How is the ruminant stomach different in young animals?

A

The abomasum is a lot larger because milk digestion happens there

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

Which is the most cranial part of the stomach?

A

The reticulum

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

What is the reticulum associated with?

A

Right up against the diaphragm and the oesophagus

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

What part of the ruminant stomach is mostly on the left side of the body?

A

The rumen

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

What parts of the ruminant stomach are mostly on the right hand side?

A

The omasum (midline) and the abomasum

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

What part of the stomach is the easiest to displace?

A

The abomasum

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

What are the different parts of the rumen called?

A

The dorsal sac
The blind sac (caudoventral)
The ventral sac

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

What is the rumens principal function?

A

Bacterial fermentation

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

What divides the rumen into its different parts?

A

External grooves with corresponding internal folds and pillars

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

What are the 3 main grooves on the rumen called?

A

Left longitudinal groove
Right longitudinal groove
Rumenoreticular groove/fold

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

What is important about the Rumenoreticular fold?

A

It acts as a dam and is a good landmark for the reticulum when foreign bodies get stuck in it

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

What does the internal surface of the rumen look like?

A

It has ruminal papillae which are more dense in the ventral part of the rumen where there is liquid instead of gas

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

What does the internal surface of the reticulum look like?

A

It has a honeycomb/net like appearance

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

Where is the omasum located?

A

Between the rumen and the liver

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

What does the internal surface of the omasum look like?

A

It has crescentic laminae - looks like a book/chocolate orange

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

What is the main function of the omasum?

A

Water absorption

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

What is the main function of the abomasum?

A

Chemical digestion - true stomach

19
Q

Where is the abomasum located?

A

Mainly to the right of the rumen apart from part of the fundus

20
Q

What does the internal surface of the abomasum look like?

A

Ruggae - wiggles and folds on the inside

21
Q

What is the structure in young ruminants that allows milk to go straight into the abomasum?

A

The Rumenoreticular groove

Also known as the gastric groove

22
Q

What is the gastric groove?

A

Two spirally twisted lips of on the wall of the reticulum and the lesser curvature of the omasum

23
Q

How does the gastric groove work?

A

When the vagus nerve is stimulated the lips curl round and form a tube into the abomasum bypassing the rumen and the reticulum

24
Q

How is the vagal reflex associated with the gastric groove stimulated?

A

Feeding on milk

25
Q

What iis the main artery supplying blood to the stomach?

A

The coeliac artery

26
Q

What are the arteries (that come off the coeliac artery) that follow the lesser curvature of the abomasum?

A

The left and right gastric arteries

27
Q

What are the arteries (that come off the coeliac artery) that follow the greater curvature of the abomasum?

A

The gastroepiploic arteries

28
Q

What are found in the longitudinal grooves of the rumen?

A

The left and right ruminal arteries

29
Q

What is the main venous drainage of the ruminal stomach?

A

The veins mirror the arteries and drain via the splenic vein into the hepatic portal vein

30
Q

What is the main parasympathetic innervation of the rumen?

A

The dorsal vagus nerve

31
Q

What is the main parasympathetic innervation of the reticulum, omasum and abomasum?

A

The ventral vagus nerve

32
Q

What is the main sympathetic innervation of the ruminal stomach?

A

The nerves come from the coeliac (coeliacomesenteric) plexus and take a similar route to the arteries

33
Q

Where does the greater omentum attach to the ruminal stomach?

A

Along the right longitudinal groove and then left longitudinal groove of the rumen
Over the reticulum
Around the greater curvature of the abomasum
Down the duodenum

34
Q

Where does the lesser omentum attach to the ruminal stomach?

A

Along the greater curvature of the omasum (because it is closely associated with the liver)
Along the lesser curvature of the abomasum

35
Q

Where is the omental bursa?

A

Between the two layers of the greater omentum and goes from the ventral surface of the rumen to the duodenum on the dorsal surface

36
Q

Where is the caecum found in a ruminant?

A

On the right side and projects caudally in the right pelvic inlet

37
Q

What does the ascending colon look like in ruminants?

A

Varies between species but usually coiled in a spiral

38
Q

Where is the jejunum found in the ruminant?

A

Hangs like a frill under the colon

39
Q

What is the attachment between the ilium and the caecum called?

A

The ileocecal fold

40
Q

What are the two main surgical incisions?

A 
Paralumbar incision
Paracostal incision (more ventral)
41
Q

Where is the paralumbar fossa located?

A

The indent between the tuber sacrale and the tuber ischii and the costal arc

42
Q

What is a dermatome?

A

The area of skin which each spinal nerve innervates

They are names after the spinal nerves

43
Q

What kind of anaesthesia technique is used on cows?

A

Paravertebral anaesthesia - regional anaesthesia technique

44
Q

How does paravertebral anaesthesia work?

A

The needle is injected near the transverse process
Some is injected into the dorsal ramus
The needle then goes through the intertransverse ligament
The rest is then injected into the ventral ramus

Animal Health Science 1 (33 decks)

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