E4: Digestive System

Question 1

What is the continuous muscular tube that runs from the mouth to the anus?

Answer 1

Alimentary canal

Question 2

What are the digestive glands that produce secretions that help break down food?

Answer 2

Salivary glands, liver, pancreas

Question 3

What do salivary glands produce?

Answer 3

Amylase

Question 4

What is the role of amylase?

Answer 4

Break down carbs into sugar

Question 5

Put the digestive processes in order…

Digestion
Mechanical breakdown
Ingestion
Propulsion
Defecation
Absorption

Answer 5

I pushed my delicious apple down

Ingestion
Propulsion
Mechanical breakdown
Digestion
Absorption
Defecation

Question 6

What is included in mechanical breakdown?

Answer 6

Chewing, churning, segmentation

Question 7

What is included in propulsion?

Answer 7

Swallowing, peristalsis

Question 8

Where does absorption happen in the small intestines?

Answer 8

Blood + lymph vessels

Question 9

What are the 4 layers of the alimentary canal?

all digestive organs have the same four layers/tunics

Answer 9

1: mucosa
2: submucosa
3: muscularis externa
4: serosa

Question 10

The name of the nervous system of the GI tract…

Answer 10

enteric nervous system (gut brain)

Question 11

What is the function of the uvula?

Answer 11

Prevents food from going up into the nasopharynx

Question 12

Which papillae of the tongue serve a tactile purpose only?

Answer 12

Filiform papillae

Question 13

4 types of tongue papillae

Answer 13

Foliate
Filiform
Fungiform
Circumvallate

Question 14

What does this histological slide show?

Answer 14

Salivary glands

Question 15

What are teeth made of?

Answer 15

Dentin

Question 16

What kind of tissue makes up the pharynx?

Answer 16

Stratified squamous epithelium with mucus-producing glands

Question 17

What does this histological slide show?

Answer 17

Esophagus

Question 18

What does this histological slide show?

Answer 18

Esophagus

Question 19

What are the 3 layers of the stomach from external to internal?

Answer 19

Longitudinal layer
Circular layer
Oblique layer

“Lions Chase Ostriches”

Question 20

Label the stomach

Answer 20

1: cardia
2: fundus
3: body
4: longitudinal layer
5: circular layer
6: oblique layer

Question 21

Largest organ inside the body?

Answer 21

Liver

Question 22

What feeds the liver blood?

Answer 22

Hepatic portal vein and hepatic artery

Question 23

What does this histological slide show?

Answer 23

Liver - specifically the lobules of the liver

Question 24

What does this histological slide show?

Answer 24

Pancreas
1: acinar cells

Question 25

Divisions of the small intestine

Answer 25

Duodenum - shortest Jejunum Ileum - longest

Question 26

Divisions of the large intestine

Answer 26

Appendix Cecum Ascending colon Transverse colon Descending colon Sigmoid colon Rectum

Question 27

The hepatic portal system is for what organ?

Answer 27

Small intestines