Digestive System

Question 1

What are 3 groups of digestive enzymes & what do they break down?

Answer 1

Amylase - breaks down carbohydrates
Lipase - Breaks down lipids
Protease - Breaks down proteins

Question 2

What kind of teeth do dogs and cats have?

Answer 2

Closed rooted

Question 3

What kind of teeth do rabbits and guinea pigs have

Answer 3

Open rooted

Question 4

What is the gap between incisors and molars in rabbits and guinea pigs called?

Answer 4

Diastema

Question 5

How many pairs of salivary glands do cats and dogs have?

Answer 5

4

Question 6

Where are the salivary glands in cats and dogs?

Answer 6

Sub-lingual (under the tongue)
Sub-mandibular (at the corner of the mandible)
Parotid (below the cartilage of the ear)
Zygomatic (under the zygomatic arch)

Question 7

What enzyme do guinea pigs, rabbits and dogs have in their saliva?

Answer 7

Amylase

Question 8

Where is the pharynx?

Answer 8

Caudal to the oral cavity

Question 9

What divides the pharynx into two?

Answer 9

The soft palate

Question 10

What is deglutition

Answer 10

Swallowing

Question 12

What are the 4 layers of the digestive tract?

Answer 12

Mucosa
Submucosa
Smooth muscle
Connective tissue

Question 13

What moves food along the digestive tract?

Answer 13

Peristalsis - sequential waves of smooth muscle contractions

Question 14

What does the oesophagus do?

Answer 14

Carries food from the pharynx to the stomach

Question 15

What does the oesophagus pass through?

Answer 15

The mediastinum

Question 16

What is emesis?

Answer 16

The act of vomiting

Question 17

Is regurgitation active or passive?

Answer 17

Passive

Question 18

What separates the oesophagus and stomach?

Answer 18

Cardiac sphincter

Question 19

What are the 3 sections of stomach?

Answer 19

Fundus (Above the cardiac sphincter)
Stomach body (main)
Pylorus (distal)

Question 20

What separates the stomach from the small intestine?

Answer 20

The pyloric sphincter

Question 21

What is the shorter side of the stomach called?

Answer 21

Lesser curvature

Question 22

Where does the omentum attach to the stomach?

Answer 22

The greater curvature

Question 23

What are the folds of stomach lining called?

Answer 23

Rugae

Question 24

What does gastric juice contain?

Answer 24

Hydrochloric acid
Pepsin (protease)
Mucus

Question 25

How long does solid food remain in the stomach?

Answer 25

3-6 hours

Question 26

How is the small intestine wall modified?

Answer 26

The mucosa is modified to contain villi

Question 27

What are villi?

Answer 27

Villi are small finger like projections used to increase surface area

Question 28

What is the lymphatic vessel in a villus called?

Answer 28

A lacteal

Question 29

What are the 3 sections of the small intestine?

Answer 29

Duodenum - short and U shaped with several openings from the pancreas and gall bladder Jejunum - long, coiled section Ileum - very short, last section

Question 30

What is the small intestine supported?

Answer 30

Mesentry

Question 31

How many lobes does the pancreas have?

Answer 31

2

Question 32

Where is the pancreas?

Answer 32

Next to the stomach and within the u shape formed by the duodenum

Question 33

What does intestinal juice contain?

Answer 33

Water Enzymes Sodium bicarbonate (neutralises stomach acid)

Question 34

Where is pancreatic juice secreted?

Answer 34

The duodenum

Question 35

What does pancreatic juice contain?

Answer 35

Sodium bicarbonate and trypsin (a protease) & insulin