Digestive System Flashcards
How long is the small colon?
10 feet
Source: Horse Science (National 4-H Council), p. 31
How long is the small intestine?
65 feet
Source: Horse Science (National 4-H Council), p. 29
How long is the large intestine?
25 feet
Source: Horse Science (National 4-H Council), p. 30
What four parts of the digestive tract make up the foregut?
Mouth, Esophagus, Stomach & Small Intestine
Source: AYHC Horse Industry Handbook, 705-2
What four parts of the digestive tract make up the hindgut?
Cecum, Large Colon, Small Colon, and Rectum
Source: AYHC Horse Industry Handbook, 705-2
How long is the horse’s esophagus?
4-5 feet
Source: Horse Science (National 4-H Council), p. 28 / Equine Science, Griffiths, p. 109
How long is the cecum?
4 feet
Source: Horse Science (National 4-H Council), p. 28
How long is the large colon?
10-12 feet
Source: Horse Science (National 4-H Council), p. 28
How much does the horse’s stomach hold?
8-17 quarts (2-4 gallons)
Source: Horse Science (National 4-H Council), p. 28); (Equine Science, Griffiths, p. 110
What percentage of the horse’s digestive system is the stomach?
8%
Source: The Horse, Evans, p. 191
How much does the horse’s small intestine hold?
48 quarts
Source: Horse Science (National 4-H Council), p. 28
The small intestine provides approximately what percent of the capacity of the gastrointestinal tract?
30%
Source: The Horse, Evans, p. 192
How long does food remain in the horse’s stomach?
15-45 minutes
Source: AYHC Horse Industry Handbook, 705-1
The gastrointestinal tract is approximately how many feet long?
100 feet
Source: Horse Science (National 4-H Council), p. 27
Name the nine parts of the alimentary canal. (aka digestive tract)
Mouth, pharynx, esophagus, stomach, small intestine, cecum, large colon, small colon, rectum
(Source: Horses and Horsemanship, Ensminger, p. 219)
The primary site of digestion and absorption of nutrients in the horse is where?
Small intestine
Source: Horse Science (National 4-H Council), p. 29
Name the enzyme of the stomach which helps digest proteins.
Pepsin
Source: Horse Science (National 4-H Council), p. 29
The pouch at the junction of the small intestine and colon is termed what?
Cecum
Source: The Horse, Evans, p. 192
Material which is not or cannot be digested in the small intestine passes into what part of the digestive system tract?
Large intestine or cecum
Source: Equine Science, Griffiths, p. 111-112 / Horses and Horsemanship, Ensminger, p. 220
What is the name of the tract that is a musculo-membranous tube that extends from the mouth to the anus?
Gastrointestinal
Source: The Horse, Evans, p. 118
What is the capacity of the large colon?
20 gallons
Source: Horse Science (National 4-H Council), p. 31
In the horse, the bile is secreted directly into where from the liver?
Small intestine
Source: The Horse, Evans, p. 192
A 1,000 pound horse normally produces how many pounds of manure each day?
40 to 50 pounds
Source: Horse Science (National 4-H Council), p. 31
How do horses digest cellulose?
Bacteria in the cecum & large intestine
Source: Horse Science (National 4-H Council), p. 33
What is the holding capacity of the cecum?
28-32 quarts
Source: Horse Science (National 4-H Council), p. 28
Which part of the horse’s digestive system serves as a functional appendix?
Cecum
Source: Horse Science (National 4-H Council), p. 31
What is the term for the mix of animal excrements and bedding?
Manure
Source: Horses and Horsemanship, Ensminger, p. 467
What are the 3 parts of the small intestine?
Duodenum, Jejunum, Ileum
Source: Horse Science (National 4-H Council), p. 29
Name the middle part of the digestive system?
Jejunum
Source: Horse Science (National 4-H Council), p. 29
What is the first part of the digestive system?
Mouth
Source: The Horse, Evans, p. 190
What is the name given to the waste matter of digestion?
Manure (feces)
Source: Horse Science (National 4-H Council), p. 31
Where does digestion begin?
In the mouth
Source: AYHC Horse Industry Handbook, 705-1
What are the 5 major parts of the horse’s digestive tract?
Mouth, Esophagus, Stomach, Small Intestine, Large Intestine
Source: Equine Science, Griffiths, p. 108
How many quarts can the large intestine hold?
130 quarts
Source: Horse Science (National 4-H Council), p. 28
In what part of the large intestine do the formation of fecal balls begin?
Large colon
Source: Equine Science, Griffiths, p. 113
What is the average total time it takes food to travel through the horse’s body from the mouth to the rectum?
Approximately 36 to 72 hours OR 2 to 3 days
Source: Equine Science, Griffiths, p. 114
