Digestiove

Question 1

What is the gastrointestinal tract?

Answer 1

Long tube through which food passes; includes mouth to anus.

Question 2

Where does digestion begin?

Answer 2

Oral cavity

Question 3

What is the hard palate?

Answer 3

Bony front part of the roof of the mouth.

Question 4

What is the soft palate?

Answer 4

Soft back part of the roof of the mouth.

Question 5

What is the function of the uvula?

Answer 5

Aids swallowing.

Question 6

What is the lingual frenulum?

Answer 6

Tissue under tongue connecting it to the mouth floor.

Question 7

What is the pharynx?

Answer 7

Throat; pathway for food and air.

Question 8

What is the esophagus?

Answer 8

Muscular tube that moves food to the stomach.

Question 9

What is the mucosa?

Answer 9

Inner lining; secretes mucus and absorbs nutrients.

Question 10

What does the submucosa contain?

Answer 10

Blood vessels, nerves, and glands.

Question 11

What is the muscularis externa responsible for?

Answer 11

Muscle layer for peristalsis.

Question 12

What is the serosa?

Answer 12

Outer layer; reduces friction.

Question 13

What does the visceral peritoneum cover?

Answer 13

Covers digestive organs.

Question 14

What does the parietal peritoneum line?

Answer 14

Lines abdominal cavity walls.

Question 15

What is the mesentery?

Answer 15

Tissue that supports intestines and holds blood vessels.

Question 16

What is the stomach?

Answer 16

Muscular sac; churns food and mixes with acids.

Question 17

What is the cardioesophageal sphincter?

Answer 17

Valve between esophagus and stomach.

Question 18

What is the pyloric sphincter?

Answer 18

Valve from stomach to small intestine.

Question 19

What are rugae?

Answer 19

Stomach folds that allow expansion.

Question 20

What is the greater curvature of the stomach?

Answer 20

Long outer curve of the stomach.

Question 21

What is the lesser curvature of the stomach?

Answer 21

Short inner curve of the stomach.

Question 22

What is the greater omentum?

Answer 22

Fatty apron covering intestines; protection & insulation.

Question 23

What is chyme?

Answer 23

Partially digested food in the stomach and small intestine.

Question 24

What is the main site for digestion and nutrient absorption?

Answer 24

Small intestine.

Question 25

What is the ileocecal valve?

Answer 25

Valve between small and large intestine.

Question 26

What is the duodenum?

Answer 26

First part of small intestine; digestion begins here.

Question 27

What is the jejunum?

Answer 27

Middle section; absorbs nutrients.

Question 28

What is the ileum?

Answer 28

Last part; absorbs remaining nutrients.

Question 29

What do pancreatic ducts carry?

Answer 29

Digestive enzymes from pancreas to duodenum.

Question 30

What does the bile duct carry?

Answer 30

Bile from liver/gall bladder to duodenum.

Question 31

What is the function of the large intestine?

Answer 31

Absorbs water; forms feces.

Question 32

What is the cecum?

Answer 32

First part of large intestine.

Question 33

What is the appendix?

Answer 33

Small tube off the cecum; role in immunity.

Question 34

What is the colon?

Answer 34

Main section of large intestine.

Question 35

What is the rectum?

Answer 35

Stores feces before elimination.

Question 36

What is the anal canal?

Answer 36

Final part of the GI tract; controls defecation.

Question 37

What is the ascending colon?

Answer 37

Moves waste up right side of abdomen.

Question 38

What is the transverse colon?

Answer 38

Moves waste across the abdomen.

Question 39

What is the descending colon?

Answer 39

Moves waste down left side.

Question 40

What is the sigmoid colon?

Answer 40

S-shaped end of colon; leads to rectum.

Question 41

What is the function of the liver?

Answer 41

Produces bile; processes nutrients and detoxifies.

Question 42

What does the gall bladder do?

Answer 42

Stores and releases bile into the small intestine.