ANS 315 - Digestive System All Answers Correct
Flow of digestive system 1. Oral cavity
2. Esophagus
3. Stomach
4. Small intestine
5. Cecum
6. Large intestine
7. Colon
8. Rectum
9. Anus
What is peristalsis? Contraction of the esophagus aiding in moving the bolus of food down the ...
What is peristalsis? ✅Contraction of the esophagus aiding in moving the bolus of food down the length
of the esophagus
What is segmentation? ✅Contractions in the intestine, contractions in non-adjacent sections in the
intestine that aid in the mixing of the contents of the digestive tract as well as aid in absorption of
nutrients
Peritoneal cavity ✅Houses the a major organs of the digestive tract, lined by serous membrane
(peritoneum)
Mesenteries function ✅Allow for blood and lymph vessels and nerve transmission
Hold organs in place
Store fat (adipose), omentum
4 layers of the digestive tract ✅1. Serosa (Visceral peritoneum)
2. Muscularis
3. Submucosa
, 4. Mucosa
How long do cells in the esophagus last? ✅Only 2-3 days, this is because they have constant friction and
abrasion from the food the animals is swallowing (stratified squamous)
Simple columnar cells develop tight junctions in the digestive epithelium with in the 24 hours of birth,
what is the function of these junctions? ✅Related to immunity, allows uptake of big immunoglobulin
molecules from colostrum which cannot happen after these junctions have closed in older animals
Also known as the brain of the gut ✅Enteric nervous system
Hindgut fermenter ✅Horses, digest plant fiber (largely cellulose) that comes from grass and hay
Horses do not have which digestive support structure? ✅Gallbladder, this is because horses are eating
constantly, have a consistent, relatively small amount of fat present in the gut at any given time
What would you expect the intestines of dogs or cats to look like? ✅Much shorter, they have a nutrient
dense diet that is easy to digest, not high in fiber (cellulose) so the intestine will be relatively short
Four methods for carbohydrate digestion ✅1. Simple stomach
2. Foregut fermenters
3. Hindgut fermenters
4. Avian
Ruminant digestive characteristics ✅No teeth on anterior portion of upper mandible
One stomach with four compartments
Much larger volume
Asynchronous ingestion and mastication
Digest and utilize protein from rumen bacteria
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller CertifiedGrades. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.29. You're not tied to anything after your purchase.
