digestive system

Question 1

What are the 6 main organs included in digestion

Answer 1

Mouth 
Pharynx
Oesophagus
Stomach 
Small intestine 
Large Intestine

Question 2

What are the accessory organs of the digestive system

Answer 2

teeth 
3 salivary glands
liver
bile ducts
pancreas

Question 3

Briefe description of the mouth

Answer 3

Consisting of: Tounge, saliva, teeth work together to create bolus. Enzymes in the saliva break down proteins. Tounge pushes bolus into pharynx.

Question 4

Describe the Pharynx role in digestion

Answer 4

Food is passed down the 3 sections of the pharynx (Oropharnyx, nasopharynx and the laryngopharynx). The epiglottis covers the larnyx and muscular tissue pushes bolus to the oesphagus.

Question 5

how many layers does the oesophagus have

Answer 5

4

Question 6

Measured by the number of vertebrae, a muscular canal passes behind the trachea. Peristaltic wave pushes food to the stomach. What organ is this?

Answer 6

oesophagus

Question 7

What are the 3 layers of muscle in the stomach

Answer 7

Longnitudinal, Cicular, Oblique

Question 8

what are the 3 functions of the stomach?

Answer 8

Churn food
continue the digestion of food through gastric juice
secrete the factors required for absorbtion of B12

Question 9

function of the duodenum

Answer 9

Linked to the gall bladder, produces bile to break down fats

Question 10

function of the small intestine

Answer 10

Nutrients are absorbed into the blood stream

Question 11

What are the 5 sections of the large intestine

Answer 11

Cecum, ascending, transverse, descending, sigmoid colon

Question 12

function of the large intestine

Answer 12

excrete feces

absorb water and salts