Digestive System

Question 1

The layer that contracts to churn food or move food along

Answer 1

muscularis

Question 2

Layer consisting of a membrane that lines the body cavity that opens to the exterior; lines smooth muscle

Answer 2

mucosa

Question 3

Areolar connective tissue layer located dee to the mucosa

Answer 3

submucosa

Question 4

A serous membrane that is the external layer of the GI tract

Answer 4

serosa

Question 5

Its only function is propulsion

Answer 5

esophagus

Question 6

A continuous digestive tube from the mouth to the anus

Answer 6

Alimentary canal or GI tract

Question 7

Conducts both air and food

Answer 7

Pharynx

Question 8

Primary site of nutrient absorption: is composed of 3 sections

Answer 8

small intestine

Question 9

Section of small intestine that receives bile, pancreatic secretions, and food from the stomach

Answer 9

duodenum

Question 10

Churns food and begins protein digestion

Answer 10

stomach

Question 11

Has two sphincters that control elimination of feces from the body

Answer 11

anus

Question 12

Has regions called the cardia, fundus, body, and pylorus

Answer 12

stomach

Question 13

has regions called the cecum, colon, rectum, and anal canal

Answer 13

large intestine

Question 14

Receives secretions from salivary glands; mastication occurs here

Answer 14

mouth/oral cavity

Question 15

Finger-like extensions increasing surface area in the small intestine

Answer 15

Villi

Question 16

Folds in the gastric mucosa

Answer 16

Rugae

Question 17

Permanent deep ridges in the small intestine mucosa

Answer 17

Plicae circularis/circular folds

Question 18

Sphincter valve between the stomach and duodenum

Answer 18

pyloric sphincter

Question 19

Serous membrane that lines the abdominal wall

Answer 19

parietal peritoneum

Question 20

Serous membrane that covers the abdominal organs

Answer 20

visceral peritoneum

Question 21

Sphincter that connects the small and large intestine

Answer 21

ileocecal sphincter

Question 22

Fluid that begins digestion of carbohydrates

Answer 22

saliva/salivary amylase

Question 23

Bony plate between the mouth and nose

Answer 23

hard palate

Question 24

Forms brush border; extensions of epithelial cell plasma membrane

Answer 24

microvilli

Question 25

Keeps food and fluid from going up into the nasal cavity

Answer 25

soft palate

Question 26

Area between lips and teeth

Answer 26

Vestibule

Question 27

Region of the stomach where the lower esophageal sphincter meets the stomach

Answer 27

cardia

Question 28

Has regions called ascending, transverse, descending, and sigmoid

Answer 28

large intestine/colon

Question 29

Narrowed region of the stomach before the small intestine

Answer 29

Pylorus

Question 30

A series of gathered pouches in the large intestine

Answer 30

Haustra

Question 31

Mechanically breaks up food during mastication

Answer 31

Teeth

Question 32

Secretes enzymes that digest carbohydrates, proteins, lipids, and nucleic acids

Answer 32

Pancreas

Question 33

Salivary glands located under the tongue with ducts that open in the floor of the mouth

Answer 33

sublingual

Question 34

Produces and secretes bile into ducts

Answer 34

liver

Question 35

Peritoneal membrane that holds the small intestine to the posterior abdominal wall

Answer 35

mesentery

Question 36

The secretions of this gland join with bile to enter the duodenum

Answer 36

Pancreas

Question 37

Peritoneal fold that holds the liver to the anterior abdominal wall

Answer 37

falciform ligament

Question 38

Manipulates food in mastication

Answer 38

tongue

Question 39

Fatty, large fold of peritoneum covering the transverse colon and small intestine

Answer 39

greater omentum

Question 40

Largest salivary glands whose ducts open by the upper second molars

Answer 40

parotid gland

Question 41

Stores and secretes bile into the duodenum

Answer 41

gallbladder

Question 42

Peritoneal membrane that attaches the stomach and duodenum to the liver

Answer 42

lesser omentum

Question 43

Salivary glands whose ducts open lateral to the lingual frenulum

Answer 43

submandibular