HIstology - digestive tube

Question 1

4 structures of the digestive tube

Answer 1

esophagus
stomach
small intestine
large intestine

Question 2

wall of the digestive tube has 4 layer

Answer 2

mucosa
submucosa
musculosa
adventitia

Question 3

muscosa or ___ membrane

Answer 3

mucous membrane (m.m.)

Question 4

mucosa made up of 4 things

Answer 4

suface epithelium
glands
lamina propria
muscularis mucosa

Question 5

surface epithelium of mucosa of the digestive tube epithelium type?

Answer 5

simple columnar non ciliated

Question 6

lamina propria of the mucosa of the digestive tube presents __ infiltration

Answer 6

lumphoid

Question 7

submucosa of digestive tube has autonomic nerves and ganglia that forms a plexus known as

Answer 7

meissner’s plexus

Question 8

musculosa of digestive tube has 2 layer

Answer 8

inner circular

outer longitudinal

Question 9

musculosa of digestive tube has a plexus of autonomic nerves and ganglia called ___/___ plexus

Answer 9

myenteric

auerbach’s

Question 10

mucosa of esophagus epithelium?

Answer 10

stratified squamous non-keratinized

Question 11

glands at the lower end of the esophagus?

Answer 11

cardiac

Question 12

cardiac glands secrete mucous that ____ the effect of regurgitating stomach acid

Answer 12

neutralized

Question 13

mucosa of the stomach is folded to form ___

Answer 13

rugae

Question 14

surface epithelium of stomach shows invaginations called ___ __

Answer 14

gastric pits

Question 15

fundic glands have 4 cells

Answer 15

mucous neck cells
peptic/chief cells
parietal/oxyntic cells
argentaffin/enterochromaffin cells

Question 16

mucous neck cells secrete ___ that…

Answer 16

mucous to protect against gastric juice

Question 17

peptic/chief cells secretes

Answer 17

secrete pepsinogen

Question 18

parietal/oxyntic cells secrete ___ and the intrinsic ___ factor

Answer 18

HCl

anti-anemia

Question 19

argentaffin/enterochromaffin cells secrete __ and sometimes ___

Answer 19

serotonin

gastrin

Question 20

pyloric glands have 2 cells

Answer 20

mucous secreting cells

argentaffin cells

Question 21

musculosa of the stomach has a thickening in the pylorus forming the ___ sphincter

Answer 21

pyloric

Question 22

3 layers of musculosa in the fundus and the body

Answer 22

inner oblique
middle circular
outer longitudinal

Question 23

3 portions to the small intestine

Answer 23

duodenum
jejunum
ileum

Question 24

mucosa of the small intestine shows ___ fold

Answer 24

circular

Question 25

there are microvilli in the small intestine

Answer 25

increase cellular surface area of absorption

Question 26

in the duodenum and beginning of jejunum, the core of the villi show dilated lymphatic vessels called the ___ ___

Answer 26

central lacteals

Question 27

central lacteals for absorption of ___

Answer 27

fat

Question 28

nodules of lymphoid tissue aggregate to form masses known as ____ ___

Answer 28

peyer's patches

Question 29

four types of cells of the small intestine

Answer 29

undifferentiated columnar cells paneth cells goblet cells enterochromaffin cells

Question 30

undifferentiated columnar cells are ___ cells

Answer 30

stem cells

Question 31

paneth cells produce __ ___

Answer 31

digestive enzymes

Question 32

enterochromaffin cells secrete ___, ___, and ___

Answer 32

serotonin secretin cholecystokinin

Question 33

glands in the proximal part of the duodenum called ___/___ glands

Answer 33

duodenal | brunner's

Question 34

duodenal/Brunner's glands secrete ____

Answer 34

mucous

Question 35

5 parts to the large intestine

Answer 35

``` cecum appendix colon rectum anal canal ```

Question 36

main functions of the large intestine is absorption of ___ and secretion of ____

Answer 36

fluid | mucous

Question 37

mucosa of the large intestine epithelium

Answer 37

simple columnar absorptive cells and numerous goblet cells

Question 38

goblet cells for ___

Answer 38

lubrication

Question 39

tenia coli

Answer 39

longitudinal layer of bundle into three bands of muscle

Question 40

appendices epiploicae

Answer 40

tag-like protuberances made up of adipose tissue

Question 41

lamina propria of appendix is heavily infiltrated with __ tissue

Answer 41

lymphoid

Question 42

mucous membrane of the anal canal have longitudinal folds called ___/___ columns

Answer 42

anal | rectal

Question 43

anal columns are connected with transverse mucosal folds called ____ ___

Answer 43

anal valves

Question 44

internal sphincter is ___

Answer 44

involuntary

Question 45

external anal sphincter is ____

Answer 45

voluntary