Digestive System Rabbit Flashcards
as an herbivore, is uniquely designed to consume large amount of plant material
rabbit
Their digestive system is designed to make the most efficient use of nutrients found in their diet, so the food moves through the track relatively quick
rabbit
high in fiber, which is indigestible to mammalian digestive enzymes
plant
Functions of the digestive system (5)
➢Receive ingested food
➢Temporary food storage
➢Mechanical and chemical food breakdown
➢Absorption of nutrients and water
➢Elimination of undigested food and excretory waste and by-products
include the mouth, pharynx (throat), esophagus, stomach, small intestine, large intestine, rectum, and anus
what tract
digestive tract
include the tongue, teeth, oral glands, pancreas, liver and gallbladder
accessory digestive structures
process of breaking food components into small enough units that they can be absorbed across the digestive tract wall
digestion
divides the liver into right and left lobes
falciform ligament
how many lobes of liver in rabbit
four lobes
produces amino acids, filters the blood, converts harmful substances into harmless ones, and helps to regulate blood sugar
liver
Produces bile, which emulsifies fat during digestion
liver
– stores bile
gallbladder
bolus travels down this, located in the thoracic cavity and is best examined during observation of circulatory system
esophagus
Stomach – consist of four portion
Cardia
Fundus
Body
Pylorus
Digestive System Diagram Label
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portion of the stomach where the stomach joins the esophagus
cardia
separates the esophagus from the stomach
cardiac sphincter
Malfunction of this is a cause of acid reflux in humans
cardiac sphincter
part of the stomach that lies to the left side of the esophagus
fundus
main portion of the stomach
body
lies to the right of the esophagus and terminates in the pyloric sphincter
pyloric
separates the stomach from the duodenum
pyloric sphincter
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mixture that is formed in the stomach when the bolus is mixed with digestive secretions
chyme
folds of the stomach
rugae
located on the greater curvature of the stomach, the larger convex curve, small dark reddish-brown organ
spleen
function of spleen
Since birth, red blood cells and lymphocytes are present, also in the postnatal period, the spleen is an organ of lymphopoiesis and protects the body against cells and genetically foreign substances, and also participates in humoral immune responses
Part of the lymphatic system and designed to filter blood
spleen
first part of the small intestine, where the common bile duct from the liver and gallbladder and the pancreatic duct from the pancreas meet the small intestine to release additional enzymes to continue the process of digestion
duodenum
sections of the intestine, which are difficult to distinguish
jejunum and ileum
caudal end of the ileum that is modified into a round muscular enlargement
sacculus rotundus
Structure found only in rabbits, large amount of lymphoid tissue and is involved in the immune system
sacculus rotundus
lines the small intestine with thousands of circular folds
plicae circulares
small projections in the small intestine
villi
projection in each villus
microvillus
small intestine ends here (valve)
ilieocecal valve
pinkish-brown, somewhat granular mass, open to the small intestine through the pancreatic duct at the caudal end of the duodenum
pancreas
function of pancreas
Buffers are secreted from the pancreas into the small intestine to increase the pH to a more neutral level,
connection between the cecum and the colon
ampulla cecalis coli
first section of the colon where special contractions separate the more digestive from the less digestible materials and force the nutritious components back to the cecum
proximal coli
rougher materials go to here once it passes through the proximal colon
distal colon
large, coiled blind sac that extends from the sacculus rotundus, makes up a larger proportion of digestive tract in rabbits than in any other group of animals
cecum
material from the cecum is released into this, where it is coated in mucus and excreted through the anus
colon
soft balls in the anus, also known as night feces or soft feces
cecotropes
cattle and other ruminants are what kind of fermenters
foregut fermenters
type of fermentation in rabbit
hindgut fermentation
Rabbit colon can be divided into (3)
ascending
transverse
descending
marks the division between the proximal and distal colon
fusus coli
Helps regulate the complex events that move materials either forward or backward and that determine whether cecotropes or dry feces are produced
fusus coli
pouches located in the beginning section of the proximal colon
haustra
longitudinal bands in the proximal colon
taenia
part of the colon that is long, twisted tube that terminates with the rectum
distal colon
both cecotropes and dry feces exit this
anus
label rabbit pictures
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function of incisor
cut food
how many rabbit incisors
six incisors
s a relatively large structure that lies dorsal to the soft palate, thereby allowing air directly from the nasopharynx to the laryn
rabbit
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