(41) - Intestinal and Colonic Motility

Question 1

(Intestinal Motility: Intestino-Intestinal Reflex)

(Intestinal Intussusception) = loops of intestine within loops of intestine

1. Contracile activity is inhibited where relative to obstruction?
2. Prevents movement of ingesta into what segment?
3. Mediated by what?

Answer 1

1. proximal
2. distal segment
3. extrinsic (autonomic) nervous system

Question 2

(Intestinal Transit: Interdigestive Patterns)

(Migrating Motility Complex)

1. from where to where

Answer 2

1. stomach to colon

Question 3

Disorders of Intestinal Transit (aka Ileus)

there are six of these - name them

I VAPE I….

Answer 3

1. Inflammatory bowel disease
2. viral enteritis (eg parvovirus)
3. autonomic neuropathy
4. post-anesthetic, post-surgical
5. electolytes (decreased K, decreased Ca)
6. Intestinal Fibrosis

Question 4

(Management of Intestinal Transit Disorders)

you know what to do

we want to rule out mechanical - if you give prokinetic and there is a chicken bone can get perforation

prokinetic agents bind 5HT in the gut - serotonin binds it?

Question 5

(Colonic Motility)

(Proximal Colon)

1. contains what parts?
2. is there segmentation?
3. is it peristaltic? what does this allow?
4. what does it do to contents?
5. extraction of what?

Answer 5

1. cecum, ascending colon (plus part of transverse)
2. yes
3. anti-peristaltic bitch - moves stuff backwards; allows for mixing, bacteria to complete deamination, time for extraction of water
4. mixes them
5. water

Question 6

(Colonic Motility)

(Distal Colon)

1. contains what parts?

2-4. What three functions does it perform?

(this is where impaction begins in cat and horse)

Answer 6

1. remainder of transverse colon and descending colon
2. storage
3. mass movement
4. defecation

Question 7

(Colonic Disease: Feline Constipation)

HARD DU

Answer 7

1. Hematochezia
2. Anorexia/lethargy
3. Reduced Defecation
4. Dyschezia
5. Dry/hard feces

(water gets extracted from proximal but just sits in distal)

6. unusual patterns

Question 8

(Feline Constipation)

1. trying to prevent what? (give me the order)

(plus give what each is)

2. is surgery a possibiity?

Answer 8

1. constipation (reduced, painful, difficult) defecation –> obstipation (loss of function) –> megacolon (loss of form)
2. yes (remove colon)

Question 9

(Natural History of Feline Constipation)

1. age?
2. sex?
3. breed?

Answer 9

1. mean 5.8 years
2. 70% male, 30% female
3. DSH most, then DLH and siamese

Question 10

(Natural History of Feline Constipation)

(Pathogenesis)

1-4. What are the four main causes?

Answer 10

1. idiopathic (62%)
2. pevelic stenosis (23%)
3. nerve injury (6%)
4. manx deformity (5%)

Question 11

there are some slides left but he seems to have skipped them…