Systems P3 (Digestive & Musculoskeletal)

Question 2

Function of Digestive System

Answer 2

1. Breaks Food down into Simpler Substances
2. Absorbs Digested Food into the body/bloodstream

Question 3

Function of the Mouth

Answer 3

1. Teeth chew food into smaller pieces
2. Saliva moistens and softens food
3. Tongue mixes saliva with food and rolls into a ball to push it down the gullet/oesophagus

Question 4

Function of the Stomach

Answer 4

1. Releases digestive juices/stomach acids to break down the food into simpler substances
2. Muscular bag that churns/mixes digestive juices with the food
3. Mucus lining helps protect stomach from acid

Question 5

Function of the Gullet/Oesophagus

Answer 5

Connects and transports food from the Mouth to the Stomach

Question 6

Function of the Small Intestine

Answer 6

1. Small Intestine fully digests the food
2. Digested food absorbed into bloodstream through the small intestine walls that have large surface area

Question 7

Function of the Large Intestine

Answer 7

1. Absorb water and mineral salts from the undigested food
2. Diarrhoea occurs when large intestine absorbs too little water, constipation when absorbs too much

Question 8

Function of the Anus

Answer 8

Holds Faeces before being excreted

Question 9

Function of the Skeletal System

Answer 9

1. Provides support for our body and gives it shape
2. Protects important internal organs
3. Works with muscular system to help us move

Question 10

Function of the Muscular System

Answer 10

Works with Skeletal System to enable Movement