the human digestive system

Question 1

digestive system

Answer 1

the group of organs that carries out digestion of food

Question 2

liver

Answer 2

a large dark red organ that carries out many of the different functions including the production of bile

Question 3

pancreas

Answer 3

a cream white organ lying close to the stomach which secretes pancreatic juice it also secretes the hormone insulin and glucagon

Question 4

absorbed

Answer 4

soaked up; nutrients are absorbed from the alimentary canal into the blood through the walls of the small intestine

Question 5

ingestion

Answer 5

the taking of food and drink into the body

Question 6

digestion

Answer 6

the breakdown of food

Question 7

physical digestion

Answer 7

the brea down of food into smaller pieces without any chemical changes to the molecules

Question 8

chemical digestion

Answer 8

the breakdown of large molecules in food into smaller molecules so that they can be absorbed

Question 9

absorption

Answer 9

the movement of nutrients from the alimentary canal into the blood

Question 10

assimilation

Answer 10

the uptake and use of nutrients

Question 11

egestion

Answer 11

the removal of undigested food from the body as faeces

Question 12

anus

Answer 12

the exit from the alimentary canal, through which faeces are removed

Question 13

sphincter muscles

Answer 13

rings of muscle that contract to the close a tube

Question 14

lubricated

Answer 14

made smooth and slippery to reduce friction

Question 15

mucus

Answer 15

a smooth viscous fluid secreted by many different organs in the body

Question 16

goblet cells

Answer 16

cells found in the lining of the respiratory passages and digestive system

Question 17

salivary glands

Answer 17

groups of cells close to the mouth, which secrete saliva into the salivary ducts

Question 18

oesophagus

Answer 18

the tube leading from the mouth to the stomach

Question 19

oesophagus

Answer 19

the tube leading from the mouth to the stomach

Question 20

trachea

Answer 20

the tube leading from the mouth to the stomach

Question 21

stomach

Answer 21

a wide part of the alimentary canal in which food can be stored for a while and where digestion of proteins begin

Question 22

lumen

Answer 22

the space at the centre of the tube through which substances can move

Question 23

duodenum

Answer 23

the first part of the small intestine into which the pancreatic duct and the bile duct empty fluids

Question 24

small intestine

Answer 24

a long narrow part of the alimentary canal consisting of the duodenum and ileum

Question 25

colon

Answer 25

the first part of the large intestine

Question 26

ileum

Answer 26

the second part of the small intestine most absorption takes place here

Question 27

pancreatic duct

Answer 27

the tube that carries pancreatic fluid from the pancreas to the duodenum

Question 28

large intestine