Digestion System

Question 0

What is the digestive tract?

Answer 0

The pathway that the food takes a series of of organs.

Question 1

Types of digestion

Answer 1

• Mechanical digestion

- Chemical digestion

Question 2

Organs off to the side of the digestive tract that produce chemicals that assist with digestion.

Answer 2

• liver

- pancreas

Question 3

Oesophagus

Answer 3

Is a long muscular tube that has the mouth at one end and the stomach at it’s other end. The muscles of the oesophagus push the ball of food down the tube.

Question 4

What is the process called when food goes down the oesophagus?

Answer 4

Peristalsis

Question 5

What is a epiglottis

Answer 5

The flap of skin that closes the end of the windpipe when you swallow.

Question 6

What’s the sphincter?

Answer 6

It separates the oesophagus from the stomach. The sphincter opens and the food passes into the stomach. It then close to stop food or stomach juices from flowing back up.

Question 7

What’s the stomach purpose

Answer 7

Food is stored for 1-6 hours. The muscular walls of the stomach contract and relax,churning up the food and mixing it with gastric juice.

Question 8

What is Gastric juice

Answer 8

• Hydrochloric acid
• Mucus
• Digestive juices

Question 9

What is Hydrochloric acid?

Answer 9

A strong acid that kills many of the bacteria that may have entered the body with the food.

Question 10

What is mucus?

Answer 10

Creates a layer on the lining of the stomach and prevent the stomach digesting itself.

Question 11

What is digestive juices?

Answer 11

Contains chemicals that start the digestive protein, the main nutrient found in meat.

Question 12

Explain the small intestine

Answer 12

First part is the duodenum where bile and pancreatic juice are added. Then the food goes through the villi here he nutrients are extracted.

Question 13

What is villi?

Answer 13

Villi create surface area because of there finger like formation. Inside the villi are capillaries which are one cell thick allowing nutrients to pass through into the blood stream but also stopping larger pieces of food transferring into the blood stream.

Question 14

What are the nutrients the villi allow to pass into the blood stream?

Answer 14

• fatty acids and glycerol produced from the digestion of fats
• Amino acids from the digestion of proteins
• Glucose from the digestion of carbohydrates

Question 15

What happens In the duodenum?

Answer 15

First part of digestion system. Splits Into two parts. One part adds bile and other part adds pancreatic juice. The walls of the duodenum are muscular and squeeze and churn the digestive chemicals are mixed through.

Question 16

The liver?

Answer 16

The body’s largest organ. Performs over 500 chemical processes and you cannot survive without it. It produces bile. Bile is a greenish liquid responsible for chemical digestion of fats. Breaks up fats so that they can be digested more easily.

Question 17

What does the pancreas do?

Answer 17

Pancreas produces pancreatic juice that helps digest carbohydrates, starches, sugars, fats and protein.

Question 18

The large intestine and it’s role

Answer 18

Final section of the digestive tract. Water is reabsorbed into the body from what is left of the food, along with any remaining nutrients. The waste form lumps known as stools. Later expelled through the anus.

Question 19

Name 4 digestive disorders

Answer 19

• vomiting
• Diarrhoea
• Heartburn
• Appendictis