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1st Year Veterinary Cards - Semester 2 > Overview Of GI Tract > Flashcards

Overview Of GI Tract Flashcards

1
Q

What are the digestive organs?

A

Oesophagus
Stomach
SI
LI

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2
Q

What are the accessory organs?

A

Pancreas

Liver

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3
Q

What processes take place in the stomach?

A

Motility

Secretion

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4
Q

What processes take place in the SI?

A

Motility
Digestion
Absorption

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5
Q

What processes take place in the large intestine?

A

Motility
Fermentation
Absorption
Egestion

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6
Q

What is prehension?

A

Movement of food into the oral cavity

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7
Q

What is mastication?

A

Chew

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8
Q

What is the function of salivary mucous?

A

To lubricate food

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9
Q

What type of gland is a parotid gland?

A

Serous

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10
Q

What type of glands are mandibular, buccal, sublingual?

A

Mixed serous and mucous

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11
Q

In simple stomach animals,what is the pH of saliva? Why?

A

Neutral

To allow amylase function

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12
Q

In complex stomached animals, what is the pH of saliva?

A

Alkaline to buffer forestomach for fermentation

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13
Q

What is saliva composed of?

A 
Mucin & water = mucous
Amylase (not carnivores or ruminants)
Bicarbonate
Phosphate (ruminants)
Lysozymes/antibodies
Protein binding tannins (leaf eaters)
Urea (ruminants)
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14
Q

In non-ruminants, describe the tonicity of saliva at normal, low and high saliva flow rate.

A

Normal: isotonic
Low: hypotonic
High: remains isotonic

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15
Q

In ruminants, describe the tonicity and which compounds predominate at normal, slow and fast salivary flow rate.

A

Always isotonic
Low- PO4 predominates
High- HCO3 predominates

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16
Q

Salivary secretion is under what type of control?

A

Neural

17
Q

What are the two types of reflex that cause saliva secretion, and what stimulates them?

A

Congenital: smell, taste, feel of food in mouth
Conditioned: learned and associated with noise/sight

18
Q

Swallowing,chewing and defaecating are under voluntary control. What type of muscle controls this?

A

Skeletal muscle

19
Q

Digestive contractions are under involuntary control. What type of muscle controls this?

A

Smooth muscle

20
Q

Where are enzymes that breakdown carbohydrates released from?

A

Saliva
Pancreas
Intestinal mucosal surface

21
Q

Where are enzymes that breakdown protein released from?

A

Stomach glands
Pancreas
Intestinal mucosal surface

22
Q

Where are enzymes that breakdown fat released from?

A

Pancreas

Intestinal mucosal surface

1st Year Veterinary Cards - Semester 2 (63 decks)

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