GI tract Flashcards
What is also known as the oral cavity and is where food is taken into the body?
mouth
What part of the mouth is tissue that separates the oropharynx and nasopharynx, and prevents food from going into the nasal passageway when swallowing?
Soft palate
What part of the mouth is the bony portion between the mouth and nose?
Hard palate
What part of the mouth is the part of the pharynx between the tongue and the soft palate?
Oropharynx
What part of the mouth secretes saliva?
Salivary gland
Chemical digestion of food is accomplished by secretion of enzymes that help break down what?
sugars, fat and protein
What is the tubular organ that connects the mouth to the stomach?
Esophagus
What is the 2 layers of lining of the esophagus?
Mucosa and submucosa
What are the 2 layers of muscle in the esophagus?
longitudinal and circular
What is the major part of digestion of food and links the esophagus to the small intestine?
Stomach
What animals have 4 compartment stomachs?
Ruminants
What are the 4 stomachs?
Reticulum, rumen, omasum, abomasum
What is a single stomach that has 3 separate parts called?
Monogastric
What is the 3 parts of a monogastric stomach?
Fundus, body, antrum
The stomach produces what which aids in the breakdown of food?
Hydrochloric acid
What enzyme breaks down proteins into amino acids in the stomach?
Pepsin
The small intestine consist of what 3 parts?
Duodenum, jejunum, ileum
What part of the small intestine is the upper part that is connected to the stomach and on which the pancreas is attached to?
Duodenum
What part of the small intestine makes up the majority of the small intestine?
Jejunum
What part of the small intestine connect to the cecum?
Ileum
The small intestine absorbs what due to the large surface area created by the folds in the intestinal wall and millions of villi?
nutrients
The villi in the small intestine contain what?
Microvilli
What is digested via the fermentation process in the ruminant?
Carbohydrates
What are the two main components of the large intestine?
Cecum and colon
What is a blind sac that is less developed in dogs and cats but is more advanced in the ruminant?
Cecum
In horses, what is the cecum and colon referred as?
Hindgut
What are the two main components of the Anus?
Internal sphincter and external sphincter
The internal sphincter is under what type of control?
Involuntary
The external sphincter is under what type of control?
voluntary
