L03 The Digestive System

Question 1

Buccal cavity?

Answer 1

Where we put food, which is chewed to be broken down, commonly known as the mouth. (Oral cavity)

Question 2

Salivary glands?

Answer 2

produce saliva and moistens food to make it easier to swallow.

Question 3

Epiglottis?

Answer 3

located beneath the tongue at the back of the throat, closes the trachea whilst eating to prevent it from going into the windpipe.

Question 4

Oesophagus?

Answer 4

commonly known as the windpipe, it carries food from the mouth to the stomach.

Question 5

Peristalsis?

Answer 5

squeezed the muscles which helps the food move down towards the stomach.

Question 6

Stomach?

Answer 6

sac with muscular walls that churns the food to break it up. produces hydrochloric acid to digest food.

Question 7

Small intestine?

Answer 7

Consists of the duodenum, ileum, absorbs nutrients and minerals from food.

Question 8

Duodenum?

Answer 8

lined with villi, finer like projections on the wall that increase surface area and assist absorption of nutrients into bloodstream.

Question 9

How does chemical digestion happen in the small intestine?

Question 10

Large intestine?

Answer 10

consists of the colon and rectum, it absorbs water from the remaining undigested food and convert it into faeces.

Question 11

Rectum?

Answer 11

it stores solid waste until it leaves the body through the anus.

Question 12

Anus?

Answer 12

the opening those faeces is excreted from.

Question 13

Liver?

Answer 13

breaks down toxins and old blood cells, it stores vitamins and iron

Question 14

Gallbladder?

Answer 14

located below the liver responsible for storing bile secreted by the liver which is then released into the small intestine.
Concentrated bile which aids digestion.

Question 15

Bile duct

Answer 15

transports bile from the liver and gallbladder to the small intestine.

Question 16

Pancreas

Answer 16

An organ/gland that is situated in the abdomen, responsible for making digestive juices insulin and other hormones.
Use hormones to regulate sugar levels
Uses amylase to digest polysaccharides.

Question 17

Pancreatic duct

Answer 17

Small tube through which digestive juices flow down to the duodenum.

Question 18

Mechanical digestion

Answer 18

when food is physically broken down to make it smaller.

Question 19

Chemical digestion

Answer 19

Where nutrients are broken down by enzymes to smaller molecules that can be absorbed into the blood and used by cells.

Question 20

Exaplain the mechanical digestion process

Question 21

Explain the chemical digestion process