Disgestive System

Question 1

What is secretion?

Answer 1

Step two in the digestive process, secretion is releasing water, acid, and enzymes into the lumen of the G.I. tract.

Question 2

What is propulsion?

Answer 2

Propulsion is step three in the digestive process; involves churning and moving food through the G.I. tract, swallowing or peristalsis.

Question 3

What is digestion?

Answer 3

Step four in the digestive process,digestion includes mechanical and chemical breakdown of food.

Question 4

What is absorption?

Answer 4

Step five in the digestive process, absorption church involves transporting digested products from the G.I. tract into the blood and lymph.

Question 5

What is defecation?

Answer 5

The final step in the digestive process, defecation is elimination of feces from the G.I. tract.

Question 6

What is ingestion?

Answer 6

Step one in the digestive process, taking food and liquids into the mouth; eating.

Question 7

Is churning in the stomach considered mechanical or chemical digestion?

Answer 7

Mechanical.

Question 8

Is chewing considered mechanical or chemical digestion?

Answer 8

Mechanical.

Question 9

Is enzymatic breakdown of food considered to be chemical digestion or mechanical digestion?

Answer 9

Chemical digestion.

Question 10

Which substance and saliva is a protective enzyme which can kill bacteria?

Answer 10

Lysosomes.

Question 11

Which substance and saliva is an enzyme that starts the breakdown of starch in the mouth?

Answer 11

Salivary amylase.

Question 12

The gastric glands contain three types of endocrine/exocrine gland cells.

Answer 12

Exocrine.

Question 13

Mucous cells secrete what?

Answer 13

Mucus.

Question 14

Parietal cells secrete what?

Answer 14

Intrinsic factor and hydrochloric acid.

Question 15

Chief cells secrete what?

Answer 15

Pepsinogen and gastric lipase.

Question 16

Intrinsic factor is needed for observed shin of what vitamin used in erythropoiesis?

Answer 16

Vitamin B 12.

Question 17

After undergoing propulsion and retropulsion, gastric contents are mixed with gastric juice, and eventually become a soupy liquid called bolus/chyme.

Answer 17

Chyme.

Question 18

The pantry attic juice is slightly acidic/alkaline the buffers Pacific/alkaline gastric juice in chyme, stops the action of pepsin from the stomach, and creates the proper pH for the action of digestive enzymes in the small intestine.

Answer 18

Alkaline, acidic.

Question 19

What are the livers functions?

Answer 19

Secretion of bile, detoxification, phagocytosis of pathogens, storage of certain vitamins and minerals, carbohydrate lipid and protein metabolism.

Question 20

Duct from the pancreas opens into which part of the small intestine?

Answer 20

The duodenum.

Question 21

Which glands are mucus producing glands located in the sub mucosa of the small intestine?

Answer 21

Intestinal glands.

Question 22

Nutrients being absorbed in the small intestine enter the blood via capillaries/lacteals.

Answer 22

capillaries.

Question 23

Nutrients being absorbed in the small intestines into the lymph via capillaries/lacteals.

Answer 23

Lacteals.

Question 24

Proteins/lipids were absorbed into the lacteals of the lymphatic system within the villi.

Answer 24

Lipids.

Question 25

The small intestine secretes intestinal juice and several digestive enzymes, called what?

Answer 25

Brush border enzymes.

Question 26

The haustra is part of the large intestine/small intestine.

Answer 26

Large intestine.

Question 27

The large intestine extends from the ileum to the anus. The opening from the alien into the large intestine is guarded by the ___________ sphincter.

Answer 27

iliocostal sphincter.

Question 28

The large intestine has four major regions. What are they?

Answer 28

Cecum, colon,rectum, and anal canal.

Question 29

Most ingestion and absorption occurs in the what?

Answer 29

In the small intestine.

Question 30

The digestion of starch mainly occurs in the ________ when salivary amylase is ducted in by the salivary glands.

Answer 30

Mouth.

Question 31

What is the common passageway for air and food?

Answer 31

The pharynx.

Question 32

Which organ produces bile?

Answer 32

The liver.

Question 33

Which organ stores and concentrates bile?

Answer 33

The gallbladder.

Question 34

Which organ has the glands that produce HCl acid and pepcinogen, and has the lowest pH?

Answer 34

The stomach.

Question 35

What is the tube that conducts food to the stomach?

Answer 35

The esophagus.

Question 36

Where does the digestion of proteins by pepsin begin?

Answer 36

In the stomach.

Question 37

Which organ receives pancreatic juice and bile?

Answer 37

The small intestine.

Question 38

This organ sends a variety of enzymes in an alkaline fluid into the small intestine.

Answer 38

The pancreas.

Question 39

What has the glands that produce liquid containing amylase which starts the digestion of carbohydrates?

Answer 39

The mouth.

Question 40

Which organ secretes digestive juices, which can they just carbohydrates, lipids, proteins, and nucleic acids?

Answer 40

Pancreas.

Question 41

Which intestine is primarily involved in water absorption and feces formation?

Answer 41

The large intestine.