Ch 17 Digestive System

Question 1

the alimentary canal is a:

Answer 1

musculomembranous tube that extends from the mouth to the anus

Question 2

the component parts of the alimentary canal are:

Answer 2

mouth, pharynx, esophagus, stomach, small intestine, large intestine, and anus

Question 3

the ESOPHAGUS is a _______; its job is to ______; its lies in the body ______

Answer 3

a long, muscular tube; job is to carry food and saliva from the laryngopharynx to the stomach; lies on the midsagittal plane at the level of C6

Question 4

the esophagus passes through the diaphragm at ___

Answer 4

T10

Question 5

the esophagus joins the stomach at ______ which is at the level of ____

Answer 5

esophagogastric junction at the xiphoid tip T11

Question 6

the cardiac antrum is:

Answer 6

the expanded portion of the terminal esophagus

Question 7

the STOMACH is _____ extending from _____

Answer 7

a dilated, saclike portion of the digestive tract extending from the esophagus to the small intestine

Question 8

the 4 parts of the stomach are:

Answer 8

cardia, fundus, body, pyloric portion

Question 9

the cardia is:

Answer 9

the part immediately surrounding the esophageal opening

Question 10

the fundus is:

Answer 10

the superior portion that expands superiorly and fills the dome of the left hemidiaphragm

Question 11

the body is:

Answer 11

the descending portion

Question 12

rugae are:

Answer 12

numerous longitudinal folds

Question 13

the pyloric portion includes:

Answer 13

the pyloric antrum and pyloric canal

Question 14

the lesser curvature is on the ___

the greater curvature is on the ____

Answer 14

right

left

Question 15

the esophagus joins the stomach at ______ which is at the level of ____

Answer 15

esophagogastric junction or cardiac orifice at the xiphoid tip T11

Question 16

the cardiac notch is:

Answer 16

the sharp angle at the esophogastric junction

Question 17

the muscle controlling the cardiac orifice (b/w esophagus & stomach) is the:

Answer 17

cardiac sphincter

Question 18

the opening b/w the stomach and small intestine is ______ controlled by the _____

Answer 18

pyloric orifice controlled by the pyloric sphincter

Question 19

the position of the stomach depends on:

Answer 19

body habitus

Question 20

the stomach serves as:

Answer 20

a storage area for food until it can be digested better, where food is broken down mechanically and chemically

Question 21

chyme is:

Answer 21

mechanically and chemically altered food in the stomach that is transported to the duodenum

Question 22

the small intestine extends from the:

Answer 22

pyloric sphincter of the stomach to the ileocecal valve

Question 23

the length of the small intestine in the average adult is:

Answer 23

22 feet

Question 24

the 3 parts of the small intestine is:

Answer 24

duodenum, jejunum, and ileum

Question 25

the duodenum is ___ long and ___ shaped; the first portion is called the ____

Answer 25

8-10” and C-shaped; duodenal bulb

Question 26

the dueodenojejunal flexure is supported by:

Answer 26

suspensory muscle of the duodenum aka ligament of Treitz

Question 27

the STOMACH is _____ extending from _____

Answer 27

a dilated, saclike portion of the digestive tract extending from the esophagus to the small intestine

Question 28

the lesser curvature is on the ___

the greater curvature is on the ____

Answer 28

right

left

Question 29

chyme is:

Answer 29

mechanically and chemically altered food in the stomach that is transported to the duodenum

Question 30

the small intestine extends from _____ to ______

Answer 30

pyloric sphincter to the ileocecal valve

Question 31

the small intestine’s job is for:

Answer 31

digestion and absorption of food

Question 32

the parts of the large intestine are:

Answer 32

cecum, colon, rectum, and anal canal

Question 33

the large intestine is ___ long

Answer 33

5 ft

Question 34

main functions of the large intestine are:

Answer 34

reabsorption of fluids and elimination of waste products

Question 35

in the filled stomach there is usually ____ waves of peristalsis

Answer 35

3-4 waves per minute

Question 36

the average emptying time of the stomach, or when the barium will reach the ileocecal valve:

Answer 36

2-3 hours

Question 37

barium passes through the esophagus slowly if:

Answer 37

it is swallowed at the end of full inspiration

Question 38

barium is delayed in the lower part for several seconds if:

Answer 38

it is swallowed at the end of full expiration

Question 39

3 ways of administering barium for small bowel:

Answer 39

1) by mouth
2) by BE
3) by injection into the bowel through an intestinal tube

Question 40

for visualization of the small intestine the supine position is used because:

Answer 40

take advantage of the superior and lateral position of the stomach to better see the duodenum and jejunum and to prevent compression of the overlapping loops of the intestines

Question 41

for visualization of the small intestine the prone position is used because:

Answer 41

to take advantage of the compression of the abdominal contents

Question 42

the first small intestine radiograph is taken ____ after drinking the barium and then every _____ after

Answer 42

15 minutes and then every 15-30 minutes after