Grand tour of the alimentary canal

Question 1

name the 4 main functions of the digestive system

Answer 1

Digestion
Secretion
Absorption
Motility

Question 2

How many pairs of salivary glands do humans have?

Answer 2

3 pairs

6 in total

Question 3

What can result when there is a lack of bile salts ?

Answer 3

steatorrhoea

Question 4

Mouths role in digestion

Answer 4

breakdown foodstuffs by chewing

Question 5

oesophagus role in digestion

Answer 5

connects mouth to stomach

Question 6

stomachs role in digestion

Answer 6

digestion of proteins

reduced foodstuffs to liquid form

Storage

Sterilization

Question 7

pancreas role in digestion

Answer 7

has digestive enzymes for carbs fats proteins

Question 8

liver role in digestion

Answer 8

bile salt production

Question 9

gallbladder role in digestion

Answer 9

store and concentrate bile

Question 10

small intestine role in digestion

Answer 10

chemical digestion and nutrient absorption

Question 11

large intestine role in digestion

Answer 11

water absorption

bacterial fermentation and formation of faeces

Question 12

what’s the length of the oesophagus to rectum

Answer 12

8m

Question 13

what are the four layers of the GI tube wall?

Answer 13

Four distinctive layers (tunics)
Mucosa:
epithelium
lamina propria
muscular mucosal

Submucosa
Muscularis externa
Serosa/adventitia