Human Digestive System function of parts

Question 0

Salivary glands

Answer 0

Produce saliva which helps lubricate the food so it slides easily down the throat and contains the enzyme amylase

Question 1

Teeth

Answer 1

Start breaking down the food into smaller pieces as soon as it enters the mouth

Question 2

Tongue

Answer 2

Helps to roll the food into a soft mass called a bolus and pucsh it down the back of the throat

Question 3

Oesophagus

Answer 3

Tube which carries the food from the mouth to the stomach, it is about 25 cm long

Question 4

Stomach

Answer 4

The food mixes with gastric juices containing acid and more enzymes. The food becomes a mushy fluid as it spends 3-4 hours being churned around.

Question 5

Duodenum

Answer 5

Different enzymes are added which continue the breakdown of the food

Question 6

Ilium

Answer 6

Contains villi and here the digested food passes across the wall into the bloodstream.

Question 7

Large intestines

Answer 7

Wider than the small intestine, water is reabsorbed from the undigested waste material which then moves to the rectum where it is stored as faeces