Chapter 26 Digestive System

Question 1

The gastrointestinal tract is also known by the name.

Answer 1

Alimentary canal

Question 2

Name the 6 accessory organs of digestion?

Answer 2

Teeth, tongue, salivary glands, liver and gallbladder, pancreas

Question 3

This basic process of taking in foods and liquids into mouth is?

Answer 3

Ingestion

Question 4

The ability of the GI tract to mix and move material along its length is?

Answer 4

Motility

Question 5

What kind of digestion is responsible for breaking down large carbs , proteins, lipids into smaller molecules via digestive enzymes?

Answer 5

Chemical digestion

Question 6

This process is the removal of digestive materials not absorbed by the body.

Answer 6

Defecation

Question 7

Medical specialty responsible for the diagnoses and treatment of diseases of the stomach and intestines?

Answer 7

Gastroenterology

Question 8

List the 4 layers of the GI tract wall, starting from innermost layer.

Answer 8

Mucosa, submucosa, muscularis, serosa

Question 9

Which layer of the GI tract wall is a thick layer of muscle responsible for propelling contents through the tract ?

Answer 9

Muscularis

Question 10

This layer of the GI tract is a membrane which secrets a slippery wet fluid, allowing the tract to glide over other organs

Answer 10

Serosa

Question 11

Which layer of the Go tract is in direct contact with the digestive contents?

Answer 11

Mucosa

Question 12

This layer of the GI tract contains many blood lymphatic vessels that receive food molecules. “ brain of the gut”

Answer 12

Submucosa

Question 13

What drapes over the transverse colon and small intestine like a “fatty apron”? Also called “beer belly” when enlarged.

Answer 13

Greater omentum

Question 14

What suspends the stomach and duodenum from the liver?

Answer 14

Lesser omentum

Question 15

What part of the oral cavity forms most of the mouth roof? Consist of maxillae and Palentine bone.

Answer 15

Hard palate

Question 16

What is hanging from soft palate is projection that prevents foods and liquids from going into nasal cavity when swallowing?

Answer 16

Uvula

Question 17

This accessory digestive organ forms the floor of the oral cavity, manipulates food in mouth, changes shape for speech and swallowing.

Answer 17

Tongue

Question 18

What is the midline fold in the undersurface of the tongue that allows it to be moved posteriorly called?

Answer 18

Lingual frenulum

Question 19

What accessory organ(s) comes in 3 pairs, lie outside mouth, and empty saliva from ducts into oral cavity?

Answer 19

Salivary glands

Question 20

Name the digestive enzyme present in saliva that begins to break down starches in the mouth.

Answer 20

Salivary amylase

Question 21

Which enzyme kills bacteria and protects the mouth from infection and tooth decay?

Answer 21

Lysozyme

Question 22

Chewing if a form of mechanical digestion, what is another term for chewing?

Answer 22

Mastication

Question 23

This muscular tube, posterior to the trachea, transports food to the stomach, secrets mucus, goes through diaphragm and mediastinum.

Answer 23

Esophagus

Question 24

Deglutition is another term for what ?

Answer 24

Swallowing

Question 25

Balled up chewed food at the point of swallowing is called what?

Answer 25

Bolus

Question 26

This J-shaped enlargement of the GI tract, located directly below the diaphragm, serves as a mixing chamber and reservoir for infested food.

Answer 26

Stomach