Monogastric Herbivore Flashcards Preview

Essentials of Mammalian Biology Part Two > Monogastric Herbivore > Flashcards

Flashcards in Monogastric Herbivore Deck (12)
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1

What are the structures of the monogastric digestive tract

Mouth
Stomach
Small Intestine
Caecum
Large intestine (colon)

2

What is the function of the mouth

Contains saliva which uses mucus, bicarbonate and amylase to partially breakdown food in the mouth

3

What is the function of the stomach

Storage of food
Digestion of food
Mixing food with acid and enzymes
In some herbivores mix to prevent plant matter sitting at the top causing gas production

4

What is the function of the small intestine

Secretions from pancreas and liver bile duct

5

What is the caecum and the function

Blind sac at the junction of the small and large intestine.
Digestion by microorganisms

6

What is the role of the large intestine (colon)

Microbial digestion, however less efficient the ruminant

7

What does the ruminant digestive tract consist of?

Mouth
Oesophagus
Rumen
Reticulum
Omasum
Abomasum
Small and large intestine (longer because it takes longer for the digestion of the plant material to be broken down)
Caecum
Gall bladder
Pancreas
Rectum

8

What are the key features of the mouth in the ruminant?

Prehensile tongue
Little chewing at eating
No amylase
Substantial amount of bicarbonate in saliva

9

What are the key features of the reticulum

Contains a network of raised ridges (honeycomb)
Papillae (small leaf-like)
Food enter from the oesophagus
Small particles pass through reticulo-omasal orifice

10

What are the key features of the reticular oesophageal groove

Between the oesophagus and the reticulo-omasal orifice

11

What are the key features of the rumen

Largest compartment of stomach
LSH of abdominal cavity
Strong muscular walls and muscular fold mix contents
Papillae line the walls

12

How does digestion occur in the forestomach?

Through microorganisms
Secrete cellulases which break B 1-4 glycosidic bonds
Cellulose digested to glucose