Digestive System

Question 1

What is peristalsis?

Answer 1

The gentle, rhythmic process of moving food through the body.

Question 2

The 4 steps of the movement of food.

Answer 2

1. Ingestion 2. Digestion 3. Absorbtion 4. Excretion

Question 3

What organs are involved in the processing of food?

Answer 3

The stomach and duodenum

Question 4

What organs are involved in the absorbtion of nutrients?

Answer 4

The small and large intestine

Question 5

What do primary organs do?

Answer 5

Touch food

Question 6

What do accessory organs do?

Answer 6

They do not touch food but are still involved with the digestive process.

Question 7

What is mechanical digestion?

Answer 7

The physical processing of food, involves the teeth, mouth, tongue, and stomach. Is used to mix food and chemicals.

Question 8

What is chemical digestion?

Answer 8

Breaking down and disinfects food with stomach acid.

Question 9

What does pepsin do ?

Answer 9

Also known as enzyme, it breaks down proteins.

Question 10

What does lipase do?

Answer 10

Breaks down fat.

Question 11

What does mucas do?

Answer 11

Is the protective barrier.

Question 12

What does saliva do?

Answer 12

Also known as amylase, it turn starch into sugar.

Question 13

What is another name for stomach acid?

Answer 13

Hydrochloric acid

Question 14

What is the scientific term for chewing?

Answer 14

Mastication

Question 15

What are the accessory organs?

Answer 15

The liver, pancreas, and gull bladder.

Question 16

What stomach organs help make up the small intestines?

Answer 16

The duodenum, jejunum, and illem.

Question 17

What is leptin?

Answer 17

It is a cue that you are full. Produced by fat cells and signal satiation to the brain.

Question 18

What is GLP-1?

Answer 18

It is a cue that you are full. Produced by intestines and signals satiation to the brain.

Question 19

What is insulin?

Answer 19

It is a cue that you are full. Is produced by the pancreas and signals satiation to the brain.

Question 20

What do the mechanical stretch receptors do?

Answer 20

Is a cue that you are full and signals satiation to the brain.

Question 21

What is ghrelin?

Answer 21

Is a cue that you are full. Is produced by the stomach and signals the hypothalamus (“master gland”).

Question 22

What does low blood glucose do?

Answer 22

Cues that you are hungry

Question 23

What do stomach contractions do?

Answer 23

Is “the growl” with smooth stomach contractions.

Question 24

What does cortisol and stress hormones do?

Answer 24

Cues that you are hungry, it “stress eating.”

Question 25

What is canniboids?

Answer 25

Cues that you are hungry with marijuana, stimulates appetite.

Question 26

What are the cues that you are full?

Answer 26

Leptin, GLP-1, Insulin, Mechanical Stretch Receptors

Question 27

What are the cues that you are hungry?

Answer 27

Ghrelin, Low Blood Glucose, Stomach Contractions, Cortisol and Stress Hormones, and Canniboids

Question 28

What does the gull bladder do?

Answer 28

Breaks up fat(like dish soap) and releases bile.

Question 29

What is catabolism?

Answer 29

When the body eats itself.

Question 30

What is "the fire within?"

Answer 30

Is food energy that is also building materials.

Question 31

What is the length of the small intestines and what is its surface area.

Answer 31

22ft long and 250m squared for surface area.

Question 32

What are the chemicals in the stomach?

Answer 32

Pepsin, Lipase, Mucas